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KRELL
K300i Listino ufficiale
. 10.990,00
Integrato stato solido RCA/XLR con telecomando
(150W/ch 8 Ohm)K-300i Modulo Digitale
Modulo digitale Usb,HDMI,Coax,Ottico,Ethernet,Bluetooth,Streaming 1.400,00
K-300i Integrated Stereo Amplifier The
K-300i incorporates a newly developed amplifier circuit design with Krell iBias
technology that delivers 150 Watts/Channel into 8Ω and 300 Watts/Channel into
4Ω. iBias provides the sonic benefits of Class A operation without the excessive
heat and power consumption of traditional Class A designs. A 771VA transformer
with 80,000μF of capacitance forms a potent power supply for excellent signal
control and dynamics. Krell Current Mode topology is employed with fully
differential circuitry that runs from the input stage through to the last output
gain stage providing an extremely linear and extended frequency response curve
with smooth, effortless highs and extremely dynamic bass energy. Packed with
many of Krell's most musical-sounding technologies, the elegant chassis is
living-room-friendly. Yet it has enough power to achieve incredible, lifelike
dynamics with any speaker. The front-panel menu system provides configuration
features such as input trim. Theater Throughput mode lets the K-300i serve as
the core of a surround-sound system without sacrificing two-channel sound
quality. Analog Inputs include three stereo RCA and two stereo balanced XLR.
High-quality gold-plated speaker cable terminals provide a secure, electrically
ideal connection. The K-300i also offers features that make it perfect for
custom installation, such as RS-232 and Ethernet ports for control and status
feedback, 3.5mm jacks for IR input, and 12-volt trigger input and output.
Additionally, the unit has an internal web server that is optimized for tablets
and provides a remote graphical user interface for convenient and intuitive
control accessed through its Ethernet connection. With the digital option
installed the K-300i becomes a world class DAC with the connectivity and
features to support the latest digital music formats. An ESS Sabre Pro DAC
configured for high current output performs the digital to analog signal
conversion for uncompromised reproduction of digital music. A network streaming
audio renderer with dedicated mobile App plays AAC, ALAC, AIFF, FLAC, WAV, WMA,
and DoP files up to 192kHz/24-bit from UPnP music servers or NAS devices. The
digital option with the mconnect Control app (available in iOS and Android
versions) also provides Spotify*, vTuner Internet radio, Tidal*, Deezer*, and
QoBuz* streaming services, is Roon Ready* and decodes MQA. HDMI 2.0 inputs and
output supporting 4K UHD with HDR are available for TV viewing with audiophile
grade sound quality. A single USB host port is available on the front panel to
play music from USB flash memory sticks and a USB device port is positioned on
the rear panel for streaming music directly from a computer. The digital option
also includes a Bluetooth receiver featuring Qualcomm aptX audio technology
for the best sound quality when connected to aptX enabled Bluetooth devices. *A
subscription is required for these services. Updating the digital module
software may also be necessary depending on the vintage of the unit (see the
download area at the bottom of the page). **Krell highly recommends that users
of the mconnect Control app update to the latest version of the app (v2.4.1 or
higher for Apple devices and v2.3.7 or higher for Android devices). This fixes a
potential issue where getting a phone call while using the phone to play music
to the Digital Vanguard or Vanguard DAC could result in a large increase in
volume level. Keeping the mconnect Control app up-to-date also ensures access to
any new features and performance improvements. Qualcomm aptX is a product of
Qualcomm Technologies International, Ltd.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United
States and other countries, used with permission. aptX is a trademark of
Qualcomm Technologies International, Ltd., registered in the United States and
other countries, used with permission. The Spotify Software is subject to third
The MQA logo is a trademark of MQA Limited. MQA Limited 2018 K-300i
Specifications Analog Inputs 2 pr.
balanced via XLR connectors 3 pr. single-ended via RCA connectors Digital Inputs
1 EIAJ Toslink Optical 1 S/PDIF Coax 2 HDMI (HDMI 2.0a, HDCP 2.2) + 1 HDMI
Output 1 USB-A (USB 2.0 host) 1 USB-B (USB 2.0 audio device) 1 Bluetooth with
aptX Outputs 1 pr. preamp outputs via RCA connectors 1 pr. speaker outputs
via gold-plated binding posts Control inputs 1 RS-232 input via 9-pin
D-subminiature connector 1 remote IR detector input via 3-conductor 3.5 mm
connector 1 12 VDC trigger input via 2-conductor 3.5 mm connector Control output
1 12 VDC trigger output (60 mA maximum current) via 2-conductor 3.5 mm connector
Input impedance Balanced: 16 kΩ Single-ended: 8 kΩ Frequency response
20 Hz to 20 kHz +0, -0.22 dB<10Hz to 100kHz +0, -0.57 dB Signal-to-noise ratio
>104 dB, wideband, unweighted, at 2V RMS in balanced, referred to full power
output >117 dB, A-weighted Gain 25 dB, referenced to 2V RMS in balanced
and full power output Input Overload 10.4 V RMS Balanced 6.8 V RMS Single-ended
Total harmonic distortion <0.015%, 1 kHz, 150 W, 8 Ω load <0.08%, 20 kHz,
150 W, 8 Ω load Output power 150 W RMS per channel at 8 Ω 300 W RMS per
channel at 4 Ω Output voltage 98 V peak to peak 34.6 V RMS Slew rate 46 V/s
Output impedance <0.023 Ω, 20 Hz <0.035 Ω, 20 Hz to 20 kHz Damping factor
>347, 20 Hz, referred to 8 Ω >228, 20 Hz to 20 kHz, referred to 8 Ω Power
consumption Standby: 11 W Idle: 46 W Maximum: 900 W Heat output
Standby: 37 BTU/hr Idle: 156 BTU/hr Maximum: 3060 BTU/h Dimensions
17.25 in W x 4.12 in H x 18.00 in D 438 mm W x 105 mm H x 457 mm D Weight
Unit only: 52 lb [23.6 kg] As shipped: 60 lb [27.3 kg] Digital Module
Specs Coaxial and HDMI inputs support PCM up to 24-bit/192kHz. Optical
input up to 24-bit/96kHz HDMI inputs support DSD and 4K video content. HDMI
output supports Audio Return Channel (ARC) USB and Network streaming support
MP3, AAC, WMA, WAV(PCM), FLAC, ALAC up to 192kHz Bluetooth streaming supports
A2DP, AVRCP, HFP, HSP
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KRELL
VANGUARD
DAC Listino ufficiale
. 8.600,00
Stream-Player di
rete 192kHz 24 bit ed internet radio UPnP/DLNA, iOS remote
Connect Stream Player The Krell Connect, the ultimate in high-resolution audio
streaming technology. From FLAC to WAV, MP3 and WMA, the Connect plays back up
to 192kHz/24-bit audio plus Internet radio, all to Krell's highest fidelity
standards. The Wi-Fi equipped Connect is available in two forms: digital only,
or with a built-in Digital-to-Analog Converter (DAC) module. The DAC-equipped
Connect has a 32-bit ESS Sabre chipset with discrete, direct-coupled analog
circuitry outputting via RCA or balanced audio outputs. The digital-only version
has both coax and Toslink optical outputs. Extensive audio libraries are easy to
navigate via the Connect's built-in 3.5-inch QVGA LCD screen. Alternately,
full-featured iOS and Android apps offer full control from anywhere in the home.
In addition to playback of FLAC and WAV files up to 192kHz/24-bit, the Connect
also streams Ogg, WMA, and MP3. Unlike some music streamers, gapless playback is
possible, allowing for no breaks between album tracks. Live concert albums, for
example, can be played as a seamless, uninterrupted experience Internet radio
gets the same conversion as the high-resolution files (on DAC-equipped models),
providing the best possible sound quality from on line streaming content.Up
to 192kHz/24-bit playback 3.5-inch QVGA (320x240) LCD Display Internet Radio
UPnP/DLNA-compliant iOS and Android apps for control. IR Remote optional.
V-Tuner equipped Wi-Fi and USB, plus Toslink optical and coax digital inputs (DAC
model only) Rack Mountable Optional 32-bit ESS Sabre DAC features 192k/24-bit
playback, with Krell fully discrete, balanced, Current mode analog circuitry DAC
model features RCA and Balanced outputs. Supported Formats: FLAC, Ogg, WAV, WMA,
Apple Lossless, MP-4a, MP3
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KRELL
ILLUSION ll Listino ufficiale
. 12.200,00
Pre Linea a stato
solido in classe A monotelaio con amplificatore cuffie e DAC
Illusion II Preamplifier The Illusion II is the
perfect centerpiece for a world class digital and analog audio system. Added to
the normal selection of balanced and single- ended inputs are five digital
inputs. The digital module features AES/EBU, coaxial, and optical digital inputs
for use with streaming devices or other digital sources. Circuitry
Highlights The Illusion II preamplifier is a dual monaural design with the left
and right channels afforded their own power supply regulation and individual
circuit boards. All signal gain is executed with surface mount technology using
proprietary multiple-output current mirrors with nearly 500 times the open loop
linearity of other designs. Featuring 700 kHz bandwidth in a zero feedback,
balanced, Krell Current Mode design, the Illusion II shares the same design
philosophy as its bigger brother, the flagship Illusion preamplifier. Negative
feedback is not used anywhere in the preamp, nor is it necessary. Open-loop
distortion is typically less than 0.003%. The volume control is realized with a
balanced resistor ladder - bandwidth and transient response of the preamp
circuitry are virtually unaffected by the volume setting. The headphone
circuitry is identical to the main circuitry, offering private listening with
the same performance as speaker playback. Digital Module Highlights The digital
module supports up to 24 bit/192kHz LPCM. All digital signals are fed to an ESS
Sabre DAC and then sent to Krells Current Mode, discrete, balanced analog
circuitry. Power Supply Highlights Oversized for a preamplifier, the power
supply features a 95 VA transformer and 40,000 F of capacitance giving it the
ability to respond quickly to musical demands. The large power supply improves
noise rejection and renders the Illusion II impervious to all but the most
severe AC voltage power fluctuations. A new eco-friendly standby mode reduces
power consumption to 2W. Illusion II Preamplifier Specifications Analog
Inputs 2 pr. balanced via XLR connectors 3 pr. singleended via RCA connectors
Digital Inputs 1 AES/EBU via XLR connector 2 coaxial via RCA connectors 2
optical via Toslink connectors Main outputs 1 balanced via XLR connectors 1
pr. single]ended via RCA connectors Download the "Quick Set-up Guide" Headphone
output 1 via 3-conductor 6.35 mm (1/4 inch) connector Control inputs 1
RS-232 input via a 9-pin D-subminiature connector 1 remote IR detector input
via a 3-conductor 3.5 mm connector 1 12 VDC trigger input via 2-conductor 3.5
mm connector Control outputs 2 individually programmable 12 VDC trigger outputs
via 2-conductor 3.5mm connectors (30 mA maximum per output) Dimensions
Preamplifier only: 17.3 in.W x 3.8 in. H x 18.3 in. D 43.8 em W x 9.7 em H x
46.4 em D Weight Shipped: 38 lbs., 17.2 kg Preamplifier only: 23 lbs.,
10.4 kg
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KRELL
ILLUSION Listino ufficiale
. 24.700,00
Pre Linea a stato
solido in classe A, tecnologia cast e alimentazione separata
Scheda crossover opzionale per
Preamplificatore Illusion
+. 3.900,00
Illusion Preamplifier The Illusion
preamplifier extends the Krell tradition of separating the power supply from the
audio circuitry in our flagship preamplifiers. Sharing the new Class A iBias
power amplifier aesthetic and featuring Krell CAST technology, the Illusion
preamplifier is the ideal match for the new Solo 375 and Solo 575 power
amplifiers. The optional crossover functionality offers the ability to use a
subwoofer/satellite speaker arrangement and still maintain the highest quality
sonic performance. Previous to the Illusion preamplifier, this system
configuration would require signals to pass through a subwoofers lower quality
crossover circuitry. The Illusion preamplifier is the centerpiece of a world
class audio system where space is at a premium Crossover Highlights Owing to
Krells work in the Modulari Duo Reference loudspeaker, the unique crossover
feature is a highly sophisticated option. When the optional board is present,
additional crossover menu items become available. Definable parameters include
independently assignable crossover frequencies and filter types for the high and
low pass sections. Choices include 40Hz, 55Hz, 75Hz, and 100Hz crossover points
with 12dB, 24dB, and 48dB Butterworth or 24dB Linkwitz-Riley style filters. The
high pass section of the crossover uses the full Illusion preamplifier circuitry
for its output stage.Circuitry Highlights
The Illusion preamplifier is a dual monaural circuit design with the left and
right channels afforded their own power supply regulation and individual full
chassis sized boards. All signal gain is realized in surface mount topology
using proprietary multiple-output current mirrors with nearly 500 times the open
loop linearity of other designs 1.5 MHz open loop bandwidth in a zero feedback,
balanced, Krell Current Mode design terminating in Krell CAST. A complete Krell
system (source, preamp, and amplifier) system, connected using CAST
interconnects reduces the number of voltage gain stages to the minimum, one. The
resulting noise floor approaches the theoretical limit of technology. Negative
feedback is not used anywhere in the preamp, nor is it necessary. Open-loop
distortion is typically less than 0.003%. The volume control is realized with a
balanced resistor ladder bandwidth and transient response of the preamp
circuitry are virtually unaffected by the volume setting. Power Supply
Highlights The Illusion audio circuits receive power from a Krell Current Mode
analog power supply housed in its own dedicated chassis. The power supply avoids
the common integrated circuit topology used in many preamplifiers and instead
mimics the design topology of Krell Evolution e Series amplifiers. The circuitry
is completely discrete giving it the ability to respond quickly to current
demands and also be unaffected by all but the most severe AC voltage power
fluctuations. Oversized for a preamplifier, the power supply features a 290 VA
transformer and 41,600F of capacitance. Locating the power supply in its own
chassis presents the ideal configuration for isolating stray electrical and
magnetic interference from the critical preamplifier signal path. Capable of
delivering current and voltage swing for any musical event, the Illusion power
supply is gentle on AC requirements when not in use. A new eco-friendly design
reduces standby power draw to 2W Illusion Preamplifier
Specifications Inputs 2 pr. CAST via 4-pin bayonet connectors 2 pr.
balanced via XLR connectors 3 pr. single-ended via RCA connectors Tape input 1
pr. single-ended via RCA connector Main outputs 2 pr. CAST via 4-pin bayonet
connectors 1 pr. balanced via XLR connector 1 pr. single-ended via RCA
connector Download the "Quick Set-up Guide" Subwoofer outputs 1 pr. balanced
via XLR connector 1 pr. single-ended via RCA connector Tape outputs 1 pr.
single-ended via RCA connector,buffered Control inputs 1 RS-232 input via a
9-pin D-subminiature connector 1 remote IR detector input via a 3-conductor 3.5
mm connector 1 12 VDC trigger input via 3.5 mm connector 1 preamplifier link
via an RJ-45 connector Dimensions Preamplifier only: 17.3 in.W x 3.8 in.
H x 18.3 in. D 43.8 em W x 9.7 em H x 46.4 em D Power supply only: 17.3 in. W
x 3.8 in. H x 17.7 in. D 43.8 em W x 9.7 em H x 44.8 em D Preamplifier and
power supply: 17.3 in. W x 7.6 in. H x 18.3 in. D 43.8 em W x 19.2 em H x 46.4
em D Weight Shipped: 61 lbs., 27.6 kg Preamplifier only: 18 lbs., 8.1 kg
Power supply only: 28 lbs., 12.7 kg
KRELL
ILLUSION
CROSSOVER Listino ufficiale
. 3.900,00
Scheda crossover
opzionale per Preamplificatore Illusion
KRELL
DUO 125 XD Listino ufficiale
. 9.500,00
Finale stereo a stato solido in classe A pura
tecnologia iBias (125W/ch 8 Ohm)
Duo 125 XD 2 Channel Power Amplifier 125 Watt Amplifier Featuring Krell iBias
Technology Frequency response 20 Hz to 20 kHz +0, -0.08 dB 0.5 Hz to
100 kHz +0, -3 dB Signal-to-noise ratio >95 dB, wideband, unweighted, referred
to full power output >112 dB, "A"-weighted Gain 25.8 dB Total harmonic
distortion <0.03% at 1 kHz, at 125 W, 8 Ω <0.17% at 20 kHz, at 125 W, 8 Ω
Input Impedance Single-ended: 100 kΩ Balanced: 200 kΩ Input sensitivity
Single-ended or balanced: 1.63 V RMS Output power 125 W RMS at 8 Ω 250 W RMS at
4 Ω Output voltage 89.4 V peak-to-peak 31.6 V RMS Output current 18 A peak Slew
rate 40 V/μs Output impedance <0.015Ω, 20 Hz to 20 kHz Damping factor >530, 20
Hz to 20 kHz, referred to 8 Ω Power consumption Standby: 1 W Idle: 58 W Maximum:
1350 W Heat output Standby: 3.42 BTU/hr. Idle: 198 BTU/hr. Maximum: 4617 BTU/hr.
Inputs 2 single-ended via RCA connector 2 balanced via XLR connector Outputs 2
pairs binding posts Dimensions 17.1 in. W x 7.65 in. H x 21.10in. D 434 mm W x
194 mm H x 536mm D Weight 60 lbs., 27.3 kg (shipping) 50 lbs., 22.7 kg (unit
only)
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KRELL
DUO 175 XD
Listino ufficiale
. 12.500,00
Finale stereo a
stato solido in classe A pura tecnologia iBias (175W/ch 8 Ohm)
Stereo Amplifiers Krell Class A iBias Technology
Krell's history is rich with breakthrough Class A amplifiers that have helped
build the Krell legacy of offering the best sounding amplifiers available.
Audiophiles have always considered Class A technology to be the best sounding
operating state for amplifiers. However, despite Class A's unrivaled sound
quality, it has fallen out of fashion because of recent demands to reduce power
consumption and heat in home electronics products. Krell engineering took this
challenge and redefined the meaning of high performance power amplifier. Our
goal - unmatched performance, elegant design, and a compelling array of features.
The breakthrough - a patent pending circuit delivering Class A operation without
the excessive heat and wasted energy of conventional designs, housed in a
striking new form factor, with network connectivity for advanced access and
monitoring. The sound is open and unconstrained, in a manner that rivals live
performance and the true sound of voices and instruments. Music and dialogue are
reproduced with a richness, detail, and startling dynamics that fill a room.
Plainly stated, Class A designs are the most musically accurate circuit topology
available. Class A amplifiers do not suffer from the inherent distortions that
all Class AB amplifiers experience. In a traditional Class A design, the output
transistors conduct full current at all times regardless of the actual demand
from the speakers. Often, only a fraction of this power is needed to reproduce
an audio signal at normal listening levels. The rest of the power is dissipated
through the amplifiers heat sinks, producing large amounts of wasted heat. With
Krell's iBias technology, bias is dynamically adjusted, so the output
transistors receive exactly as much power - but only as much power - as they
need. Krell's iBias Class A technology allows our latest amplifiers to run in
full Class A mode to full power while minimizing heat generation. Previous
efforts at using a "tracking" bias, while effective, only measured the incoming
signal and set bias levels from this information. Our new patent pending iBias
technology significantly elevates the effectiveness of previous designs by
calculating bias from the output stage. This seemingly small change in topology
results in a dramatic improvement in sound quality, especially midrange richness
and purity. The core of the technology is an innovative, patent pending design
for a dynamic intelligent bias circuit. Our iBias Class A circuit directly
measures the output current of the amplifier and adjusts the bias to the optimum
level. Because iBias Class A measures the output current, the real time demands
of the specific speaker connected to the amp are directly incorporated into the
circuit function. In addition, iBias Class A even reduces the bias when the
signal is at very low levels, making its operation undetectable by ear and even
by standard amplifier measurements. In sliding bias schemes, the circuit merely
estimates how much bias is needed based on the input signal and an "assumed
speaker load." Duo 175 2 Channel Power
Amplifier 175 Watt Amplifier Featuring Krell iBias Technology Frequency
response 20 Hz to 20 kHz +0, -0.08 dB 0.5 Hz to 100 kHz +0, -3 dB
Signal-to-noise ratio >95 dB, wideband, unweighted, referred to full power
output >115 dB, "A"-weighted Gain 26.2 dB Total harmonic distortion <0.03% at 1
kHz, at 175 W, 8 Ω <0.13% at 20 kHz, at 175 W, 8 Ω Input Impedance
Single-ended: 100 k #x3A9; Balanced: 200 k #x3A9; Input sensitivity
Single-ended or balanced: 1.84 V RMS Output power 175 W RMS at 8 Ω 350 W
RMS at 4 Ω Output voltage 106 V peak-to-peak 37 V RMS Output current 13 A peak
Slew rate 40 V/s Output impedance<0.038 , 20 Hz to 20 kHz Damping factor
>210, 20 Hz to 20 kHz, referred to 8 Power consumption Standby: 1 W Idle:
73 W Maximum: 1500 W Heat output Standby: 3.42 BTU/hr. Idle: 250 BTU/hr.
Maximum: 5137 BTU/hr. Inputs 2 single-ended via RCA connector 2 balanced via XLR
connector Outputs 2 pairs binding posts Dimensions 17.1 in. W x 7.65 in. H x
21.10in. D 434 mm W x 194 mm H x 536mm D Weight 70 lbs., 31.8 kg (shipping)
60 lbs., 27.3 kg (unit only)
KRELL
DUO 300 XD
Listino ufficiale
. 15.600,00
Finale stereo a
stato solido in classe A pura tecnologia iBias (300W/ch 8 Ohm)
Stereo Amplifiers Krell Class A iBias Technology
Krell's history is rich with breakthrough Class A amplifiers that have helped
build the Krell legacy of offering the best sounding amplifiers available.
Audiophiles have always considered Class A technology to be the best sounding
operating state for amplifiers. However, despite Class A's unrivaled sound
quality, it has fallen out of fashion because of recent demands to reduce power
consumption and heat in home electronics products. Krell engineering took this
challenge and redefined the meaning of high performance power amplifier. Our
goal - unmatched performance, elegant design, and a compelling array of features.
The breakthrough - a patent pending circuit delivering Class A operation without
the excessive heat and wasted energy of conventional designs, housed in a
striking new form factor, with network connectivity for advanced access and
monitoring. The sound is open and unconstrained, in a manner that rivals live
performance and the true sound of voices and instruments. Music and dialogue are
reproduced with a richness, detail, and startling dynamics that fill a room.
Plainly stated, Class A designs are the most musically accurate circuit topology
available. Class A amplifiers do not suffer from the inherent distortions that
all Class AB amplifiers experience. In a traditional Class A design, the output
transistors conduct full current at all times regardless of the actual demand
from the speakers. Often, only a fraction of this power is needed to reproduce
an audio signal at normal listening levels. The rest of the power is dissipated
through the amplifiers heat sinks, producing large amounts of wasted heat. With
Krell's iBias technology, bias is dynamically adjusted, so the output
transistors receive exactly as much power - but only as much power - as they
need. Krell's iBias Class A technology allows our latest amplifiers to run in
full Class A mode to full power while minimizing heat generation. Previous
efforts at using a "tracking" bias, while effective, only measured the incoming
signal and set bias levels from this information. Our new patent pending iBias
technology significantly elevates the effectiveness of previous designs by
calculating bias from the output stage. This seemingly small change in topology
results in a dramatic improvement in sound quality, especially midrange richness
and purity. The core of the technology is an innovative, patent pending design
for a dynamic intelligent bias circuit. Our iBias Class A circuit directly
measures the output current of the amplifier and adjusts the bias to the optimum
level. Because iBias Class A measures the output current, the real time demands
of the specific speaker connected to the amp are directly incorporated into the
circuit function. In addition, iBias Class A even reduces the bias when the
signal is at very low levels, making its operation undetectable by ear and even
by standard amplifier measurements. In sliding bias schemes, the circuit merely
estimates how much bias is needed based on the input signal and an "assumed
speaker load." Inputs1 RJ 45
Ethernet Port1 12V Trigger InputWBT Speaker Binding PostsOptional Rack Mount
Kit 17 W, 7 H, 21 D in 43.3 W, 17.7 H, 53.1 D cm Weight: 70 lbs, 32kg
KRELL
SOLO 375 XD
Listino ufficiale
. 14.300,00
Finale mono a
stato solido in classe A pura tecnologia iBias (375W/ch 8 Ohm)
Krell Class A iBias
Technology Krell's history is rich with breakthrough Class A amplifiers that
have helped build the Krell legacy of offering the best sounding amplifiers
available. Audiophiles have always considered Class A technology to be the best
sounding operating state for amplifiers. However, despite Class A's unrivaled
sound quality, it has fallen out of fashion because of recent demands to reduce
power consumption and heat in home electronics products. Krell engineering took
this challenge and redefined the meaning of high performance power amplifier.
Our goal - unmatched performance, elegant design, and a compelling array of
features. The breakthrough - a patent pending circuit delivering Class A
operation without the excessive heat and wasted energy of conventional designs,
housed in a striking new form factor, with network connectivity for advanced
access and monitoring. The sound is open and unconstrained, in a manner that
rivals live performance and the true sound of voices and instruments. Music and
dialogue are reproduced with a richness, detail, and startling dynamics that
fill a room. Plainly stated, Class A designs are the most musically accurate
circuit topology available. Class A amplifiers do not suffer from the inherent
distortions that all Class AB amplifiers experience. In a traditional Class A
design, the output transistors conduct full current at all times regardless of
the actual demand from the speakers. Often, only a fraction of this power is
needed to reproduce an audio signal at normal listening levels. The rest of the
power is dissipated through the amplifiers heat sinks, producing large amounts
of wasted heat. With Krell's iBias technology, bias is dynamically adjusted, so
the output transistors receive exactly as much power - but only as much power -
as they need. Krell's iBias Class A technology allows our latest amplifiers to
run in full Class A mode to full power while minimizing heat generation.
Previous efforts at using a "tracking" bias, while effective, only measured the
incoming signal and set bias levels from this information. Our new patent
pending iBias technology significantly elevates the effectiveness of previous
designs by calculating bias from the output stage. This seemingly small change
in topology results in a dramatic improvement in sound quality, especially
midrange richness and purity. Solo 375 Mono Power Amplifier 375 Watt
Amplifier Featuring Krell iBias Technology Specifications 375 Watts
into 8 Ohms 2 ea - Single-ended RCA and Balanced XLR Inputs 1 RJ 45 Ethernet
Port 1 12V Trigger Input WBT Speaker Binding Posts Optional Rack Mount Kit
17 W, 7 H, 21 D in 43.3 W, 17.7 H, 53.1 D cm Weight: 60 lbs, 27kg
KRELL
SOLO 575 XD
Listino ufficiale
. 18.600,00
Finale mono a
stato solido in classe A pura tecnologia iBias (575W/ch 8 Ohm)
Krell Class A iBias
Technology Krell's history is rich with breakthrough Class A amplifiers that
have helped build the Krell legacy of offering the best sounding amplifiers
available. Audiophiles have always considered Class A technology to be the best
sounding operating state for amplifiers. However, despite Class A's unrivaled
sound quality, it has fallen out of fashion because of recent demands to reduce
power consumption and heat in home electronics products. Krell engineering took
this challenge and redefined the meaning of high performance power amplifier.
Our goal - unmatched performance, elegant design, and a compelling array of
features. The breakthrough - a patent pending circuit delivering Class A
operation without the excessive heat and wasted energy of conventional designs,
housed in a striking new form factor, with network connectivity for advanced
access and monitoring. The sound is open and unconstrained, in a manner that
rivals live performance and the true sound of voices and instruments. Music and
dialogue are reproduced with a richness, detail, and startling dynamics that
fill a room. Plainly stated, Class A designs are the most musically accurate
circuit topology available. Class A amplifiers do not suffer from the inherent
distortions that all Class AB amplifiers experience. In a traditional Class A
design, the output transistors conduct full current at all times regardless of
the actual demand from the speakers. Often, only a fraction of this power is
needed to reproduce an audio signal at normal listening levels. The rest of the
power is dissipated through the amplifiers heat sinks, producing large amounts
of wasted heat. With Krell's iBias technology, bias is dynamically adjusted, so
the output transistors receive exactly as much power - but only as much power -
as they need. Krell's iBias Class A technology allows our latest amplifiers to
run in full Class A mode to full power while minimizing heat generation.
Previous efforts at using a "tracking" bias, while effective, only measured the
incoming signal and set bias levels from this information. Our new patent
pending iBias technology significantly elevates the effectiveness of previous
designs by calculating bias from the output stage. This seemingly small change
in topology results in a dramatic improvement in sound quality, especially
midrange richness and purity.Solo 575
Mono Power Amplifier 575 Watt Amplifier Featuring Krell iBias Technology
Specifications 575 Watts into 8 Ohms 2 ea - Single-ended RCA and
Balanced XLR Inputs 1 RJ 45 Ethernet Port 1 12V Trigger Input WBT
Speaker Binding Posts Optional Rack Mount Kit 17 W, 7 H, 21 D in 43.3 W, 17.7
H, 53.1 D cm Weight: 85 lbs, 39 kg
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KRELL
TRIO 300 XD
Listino ufficiale
. 18.600,00
Finale a 3
canali classe A pura tecnologia iBias (300W/ch 8 ohms)
Krell Class A iBias Technology Krell's
history is rich with breakthrough Class A amplifiers that have helped build the
Krell legacy of offering the best sounding amplifiers available. Audiophiles
have always considered Class A technology to be the best sounding operating
state for amplifiers. However, despite Class A's unrivaled sound quality, it has
fallen out of fashion because of recent demands to reduce power consumption and
heat in home electronics products. Krell engineering took this challenge and
redefined the meaning of high performance power amplifier. Our goal - unmatched
performance, elegant design, and a compelling array of features. The
breakthrough - a patent pending circuit delivering Class A operation without the
excessive heat and wasted energy of conventional designs, housed in a striking
new form factor, with network connectivity for advanced access and monitoring.
The sound is open and unconstrained, in a manner that rivals live performance
and the true sound of voices and instruments. Music and dialogue are reproduced
with a richness, detail, and startling dynamics that fill a room. Plainly stated,
Class A designs are the most musically accurate circuit topology available.
Class A amplifiers do not suffer from the inherent distortions that all Class AB
amplifiers experience. In a traditional Class A design, the output transistors
conduct full current at all times regardless of the actual demand from the
speakers. Often, only a fraction of this power is needed to reproduce an audio
signal at normal listening levels. The rest of the power is dissipated through
the amplifiers heat sinks, producing large amounts of wasted heat. With Krell's
iBias technology, bias is dynamically adjusted, so the output transistors
receive exactly as much power - but only as much power - as they need. Krell's
iBias Class A technology allows our latest amplifiers to run in full Class A
mode to full power while minimizing heat generation. Previous efforts at using a
"tracking" bias, while effective, only measured the incoming signal and set bias
levels from this information. Our new patent pending iBias technology
significantly elevates the effectiveness of previous designs by calculating bias
from the output stage. This seemingly small change in topology results in a
dramatic improvement in sound quality, especially midrange richness and purity.
The core of the technology is an innovative, patent pending design for a dynamic
intelligent bias circuit. Our iBias Class A circuit directly measures the output
current of the amplifier and adjusts the bias to the optimum level. Because
iBias Class A measures the output current, the real time demands of the specific
speaker connected to the amp are directly incorporated into the circuit function.
In addition, iBias Class A even reduces the bias when the signal is at very low
levels, making its operation undetectable by ear and even by standard amplifier
measurements. In sliding bias schemes, the circuit merely estimates how much
bias is needed based on the input signal and an "assumed speaker load." Compared
with iBias Class A, these sliding bias technologies are much less effective -
and much less accurateTRIO 300 3 Channel Power Amplifier 300 Watt Amplifier
Featuring Krell iBias Technology Specifications 300 Watts into 8
Ohms 3 ea - Single-ended RCA and Balanced XLR Inputs 1 RJ 45 Ethernet Port1
12V Trigger InputWBT Speaker Binding PostsOptional Rack Mount Kit 17 W, 7 H,
21 D in43.3 W, 17.7 H, 53.1 D cm Weight: 80 lbs, 36 kg
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KRELL
CHORUS 5200
XD
Listino ufficiale
. 14.300,00
Finale a 5
canali stato solido in classe A pura tecnologia iBias (200W/ch 8 Ohm)
Krell Class A iBias Technology Krell's
history is rich with breakthrough Class A amplifiers that have helped build the
Krell legacy of offering the best sounding amplifiers available. Audiophiles
have always considered Class A technology to be the best sounding operating
state for amplifiers. However, despite Class A's unrivaled sound quality, it has
fallen out of fashion because of recent demands to reduce power consumption and
heat in home electronics products. Krell engineering took this challenge and
redefined the meaning of high performance power amplifier. Our goal - unmatched
performance, elegant design, and a compelling array of features. The
breakthrough - a patent pending circuit delivering Class A operation without the
excessive heat and wasted energy of conventional designs, housed in a striking
new form factor, with network connectivity for advanced access and monitoring.
The sound is open and unconstrained, in a manner that rivals live performance
and the true sound of voices and instruments. Music and dialogue are reproduced
with a richness, detail, and startling dynamics that fill a room. Plainly stated,
Class A designs are the most musically accurate circuit topology available.
Class A amplifiers do not suffer from the inherent distortions that all Class AB
amplifiers experience. In a traditional Class A design, the output transistors
conduct full current at all times regardless of the actual demand from the
speakers. Often, only a fraction of this power is needed to reproduce an audio
signal at normal listening levels. The rest of the power is dissipated through
the amplifiers heat sinks, producing large amounts of wasted heat. With Krell's
iBias technology, bias is dynamically adjusted, so the output transistors
receive exactly as much power - but only as much power - as they need. Krell's
iBias Class A technology allows our latest amplifiers to run in full Class A
mode to full power while minimizing heat generation. Previous efforts at using a
"tracking" bias, while effective, only measured the incoming signal and set bias
levels from this information. Our new patent pending iBias technology
significantly elevates the effectiveness of previous designs by calculating bias
from the output stage. This seemingly small change in topology results in a
dramatic improvement in sound quality, especially midrange richness and purity.
The core of the technology is an innovative, patent pending design for a dynamic
intelligent bias circuit. Our iBias Class A circuit directly measures the output
current of the amplifier and adjusts the bias to the optimum level. Because
iBias Class A measures the output current, the real time demands of the specific
speaker connected to the amp are directly incorporated into the circuit function.
In addition, iBias Class A even reduces the bias when the signal is at very low
levels, making its operation undetectable by ear and even by standard amplifier
measurements. In sliding bias schemes, the circuit merely estimates how much
bias is needed based on the input signal and an "assumed speaker load." Compared
with iBias Class A, these sliding bias technologies are much less effective -
and much less accurateCHORUS 5200 5
Channel Power Amplifier 200 Watt Amplifier Featuring Krell iBias Technology
Frequency response 20 Hz to 20 kHz +0, 0.08 dB <0.5 Hz to 100 kHz +0, 3 dB
Signal-to-noise ratio >95 dB, wideband, unweighted, referred to full power
output >115 dB, A-weighted Gain 26.2 dB Total harmonic distortion <0.04% at 1
kHz, at 200 W, 8 Ω <0.15% at 20 kHz, at 200 W, 8 Ω Input impedance Single-ended:
100 kW Balanced: 200 kΩ Input sensitivity Single-ended or balanced: 1.96 V RMS
Output power 200 W RMS at 8 Ω 360 W RMS at 4 Ω Output voltage 113 V peak-to-peak
40 V RMS Output current 13.4 A peak Slew rate 40 V/ms Output impedance <0.038 W,
20 Hz to 20 kHz Damping factor >210, 20 Hz to 20 kHz, referred to 8W Power
consumption Standby: 1 W Idle: 182 W Maximum: 2100 W Heat output< Standby: 3.4
BTU/hr. Idle: 623 BTU/hr. Maximum: 7182 BTU/hr. Inputs 5 single-ended via RCA
connector 5 balanced via XLR connector Outputs 5 pairs binding posts Dimensions
17.1 in. W x 7.65 in. H x 21.10 in. D 434 mm W x 194 mm H x 536 mm D Weight 95
lbs., 43.2 kg (shipping) 85 lbs., 38.6 kg (unit only)
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KRELL
CHORUS 7200
XD
Listino ufficiale
. 17.100,00
Finale a 7
canali stato solido in classe A pura tecnologia iBias (200W/ch 8 Ohm)
Krell Class A iBias Technology Krell's
history is rich with breakthrough Class A amplifiers that have helped build the
Krell legacy of offering the best sounding amplifiers available. Audiophiles
have always considered Class A technology to be the best sounding operating
state for amplifiers. However, despite Class A's unrivaled sound quality, it has
fallen out of fashion because of recent demands to reduce power consumption and
heat in home electronics products. Krell engineering took this challenge and
redefined the meaning of high performance power amplifier. Our goal - unmatched
performance, elegant design, and a compelling array of features. The
breakthrough - a patent pending circuit delivering Class A operation without the
excessive heat and wasted energy of conventional designs, housed in a striking
new form factor, with network connectivity for advanced access and monitoring.
The sound is open and unconstrained, in a manner that rivals live performance
and the true sound of voices and instruments. Music and dialogue are reproduced
with a richness, detail, and startling dynamics that fill a room. Plainly stated,
Class A designs are the most musically accurate circuit topology available.
Class A amplifiers do not suffer from the inherent distortions that all Class AB
amplifiers experience. In a traditional Class A design, the output transistors
conduct full current at all times regardless of the actual demand from the
speakers. Often, only a fraction of this power is needed to reproduce an audio
signal at normal listening levels. The rest of the power is dissipated through
the amplifiers heat sinks, producing large amounts of wasted heat. With Krell's
iBias technology, bias is dynamically adjusted, so the output transistors
receive exactly as much power - but only as much power - as they need. Krell's
iBias Class A technology allows our latest amplifiers to run in full Class A
mode to full power while minimizing heat generation. Previous efforts at using a
"tracking" bias, while effective, only measured the incoming signal and set bias
levels from this information. Our new patent pending iBias technology
significantly elevates the effectiveness of previous designs by calculating bias
from the output stage. This seemingly small change in topology results in a
dramatic improvement in sound quality, especially midrange richness and purity.
The core of the technology is an innovative, patent pending design for a dynamic
intelligent bias circuit. Our iBias Class A circuit directly measures the output
current of the amplifier and adjusts the bias to the optimum level. Because
iBias Class A measures the output current, the real time demands of the specific
speaker connected to the amp are directly incorporated into the circuit function.
In addition, iBias Class A even reduces the bias when the signal is at very low
levels, making its operation undetectable by ear and even by standard amplifier
measurements. In sliding bias schemes, the circuit merely estimates how much
bias is needed based on the input signal and an "assumed speaker load." Compared
with iBias Class A, these sliding bias technologies are much less effective -
and much less accurate CHORUS 7200 7 Channel Power Amplifier 200 Watt Amplifier Featuring Krell iBias
Technology Frequency response 20 Hz to 20 kHz +0, 0.08 dB <0.5 Hz to 100 kHz
+0, 3 dB Signal-to-noise ratio >95 dB, wideband, unweighted, referred to full
power output >115 dB, A-weighted Gain 26.2 dB Total harmonic distortion <0.04%
at 1 kHz, at 200 W, 8 Ω <0.15% at 20 kHz, at 200 W, 8 Ω Input impedance
Single-ended: 100 kW Balanced: 200 kΩ Input sensitivity Single-ended or balanced:
1.96 V RMS Output power 200 W RMS at 8 Ω 360 W RMS at 4 Ω Output voltage 113 V
peak-to-peak 40 V RMS Output current 13.4 A peak Slew rate 40 V/ms Output
impedance <0.038 W, 20 Hz to 20 kHz Damping factor >210, 20 Hz to 20 kHz,
referred to 8 W Power consumption Standby: 1 W Idle: 255 W Maximum: 2800 W Heat
output< Standby: 3.4 BTU/hr. Idle: 873 BTU/hr. Maximum: 9590 BTU/hr. Inputs 7
single-ended via RCA connector 7 balanced via XLR connector Outputs 7 pairs
binding posts Dimensions 17.1 in. W x 7.65 in. H x 21.10 in. D 434 mm W x 194 mm
H x 536 mm D Weight 110 lbs., 50 kg (shipping) 100 lbs., 45.4 kg (unit only)
KRELL
THEATER 7
XD
Listino ufficiale
. 12.350,00
Finale a 7 canali a stato solido in classe A
tecnologia iBias XD (100W/ch 8 Ohm)
THEATER 7 XD 7 Channel Power Amplifier
100 Watt Amplifier Featuring Krell iBias Technology The amplifier design
uses Krell Current Mode technology that is fully differential and discrete in
the critical gain stages. This results in a highly linear and extended frequency
response, well beyond the range of hearing, for smooth effortless highs and
tight high impact bass. The power supply consists of two 787VA toroidal
transformers and 160,000uF of capacitance. This is shared among all the channels
so all of that power is available to the channels with the most demand. In real
world conditions the left, right, and center channels require the lions share
of the power so this gives the Theater 7 a more effective power supply than
other amplifiers that have smaller dedicated power supplies for each channel.
Frequency response 20 Hz to 20 kHz +0,
0.11 dB <3 Hz to 200 kHz +0, 3 dB Signal-to-noise ratio >101 dB, wideband,
unweighted, referred to full power output >114 dB, A-weighted Gain 25.5 dB
Total harmonic distortion <0.02% at 1 kHz, at 100 W, 8 Ω, two channels driven;
<0.20% at 20 kHz, at 100 W, 8 Ω, two channels driven; Input impedance
Single-ended: 27 kΩ; Balanced: 54 kΩ; Input sensitivity Single-ended or
balanced: 1.50 V RMS Output power, per channel 120W RMS at 8 Ω, 2 channels
driven 115W RMS at 8 Ω, 3 channels driven 110W RMS at 8 Ω, 5 channels driven
105W RMS at 8 Ω, 7 channels driven 210W RMS at 4 Ω, 2 channels driven 190W RMS
at 4 Ω, 3 channels driven 165W RMS at 4 Ω, 5 channels driven 140W RMS at 4 Ω, 7
channels driven Output voltage 93 V peak-to-peak 33 V RMS Output current 10 A
peak Output impedance <0.025 Ω, 20 Hz to 20 kHz Damping factor >320, 20 Hz to 20
kHz, referred to 8 Ω Power consumption Standby: 1 W Idle: 66 W Maximum: 2000 W
Heat output Standby: 3.42 BTU/hr. Idle: 225 BTU/hr. Maximum: 2200 BTU/hr. Inputs
7 single-ended via RCA connector 7 balanced via XLR connector Outputs 7 pairs
five-way binding posts Remote connectors One 12 VDC input (12 V trigger)
via 3.5 mm jack Dimensions 17.1 in. W x 7.65 in. H x 21.10 in. D 434
mm W x 194 mm H x 536 mm D Weight 80 lbs., 36.4 kg (shipping) 70 lbs.,
31.8 kg (unit only)
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KRELL
FOUNDATION 4K
Listino ufficiale
. 13.000,00
Pre/processore 4K e
7.1 con XLR/RCA, HDMI 2.0, True HD, DTS Ma, 3D, IP control
Ultra HD Processor
The Foundation 4K UHD Surround Sound Processor couples award winning Krell
preamplifier circuitry to the latest in HDMI technology to create the
centerpiece of a high performance home theater system. The Foundation 4K UHD
adds HDMI 2.0 and HDCP 2.2 technology to the award winning Foundation processor.
Designed to be upgradeable, existing Foundation processors can be upgraded to
the Foundation 4K UHD platform at the Krell facility. The Foundation 4K UHD
updates 4 of the 10 HDMI 1.4a inputs to HDMI 2.0/HDCP 2.2 capability. New on
screen display functionality adds status messages including volume, active
source, video resolution and audio format. System setup is accomplished from the
front panel or a network tablet/computer.Additional functionality has been added
to the second HDMI output. The two HDMI video outputs are now independent and
can be configured to send different video signals to two individual displays.
Both outputs support 4K signals being simultaneously displayed.Both HMDI outputs
feature Audio Return Channel (ARC). With ARC, a display device is able to send
audio back down the HDMI cable to the Foundation 4K UHD. Televisions with
built-in web streaming capability like Netflix or Pandora, can send the audio
signal back to the Foundation 4K UHD use the full home theater system instead of
just the TV's speakers.Featuring the latest digital connectivity, the Foundation
4K UHD maintains Krell's exacting standards for analog audio reproduction.From
decoding the latest lossless audio formats, extensive digital switching, 3DTV
pass-through, and more, the Foundation 4K UHD is fully compliant with the
digital age. The 7.1-channel processor also features balanced audio outputs,
automatic setup and room EQ, and Krell's legendary robust hardware. A slim form
factor exudes the Krell aesthetic, while allowing placement in smaller equipment
racks.The Foundation 4K UHD features Krell's Automatic Room Equalization System
(ARES), to ensure the best possible performance from every theater. ARES
analyzes all the speakers in the system, their location, phase, and distance
from each other, to determine the best crossover frequency, delay, and more. In
addition, ARES incorporates the acoustics of the room to determine unique EQ
curves for each of the 7.1 output channels. Unlike other room EQs, ARES can be
programmed to only adjust the troublesome low frequencies, leaving high
frequencies unaltered. The Foundation 4K UHD includes a new Krell development -
Intelligent HDMI switching. Intelligent HDMI switching is a combination of
circuitry and innovative software that optimizes HDMI operation. Various
parameters including the monitor's electronic ID and source video resolution are
stored in non-volatile memory. All 10 source inputs are always active so source,
channel, video resolution, and audio format changes are instantaneous. The
Intelligent HDMI design provides the fastest signal recognition possible.The
Foundation 4K UHD passes video signals directly without any video processing,
ensuring bit-for-bit accuracy of the signal, up to 3840x2160. However, to
simplify cabling, setup, and use, there is full transcoding of the 2 composite
and 3 component analog video inputs to the HDMI outputs. Krell designed the
Foundation 4K UHD with flexibility and ease-of-use in mind, with extensive
routing capability of the audio inputs to the various outputs. During setup, the
specific paths will be chosen based on how the user intends to use each source,
displays, and audio output channels. The Foundation 4K UHD supports stereo and
multichannel DSD decoding via any of the 10 HDMI inputs. Playback options
include DSD 2-ch Direct, DSD Stereo, and DSD Multi modes. DSD 2-ch Direct
converts a stereo DSD signal to analog and directly passes it to the left and
right analog outputs. DSD Stereo first applies any left and right channel
crossover configured in the Foundation 4K UHD menu, converts the signal to
analog, and then sends it to the left and right outputs. DSD Multi supports
multichannel DSD recordings and utilizes all crossovers configured in the
Foundation 4K UHD menu. There is no configuration required as the Foundation 4K
UHD automatically recognizes a DSD signal and defaults to the last used DSD mode
for playback. Pressing the mode button on the remote control or web server
interface will cycle through all three DSD modes.The Foundation 4K UHD will
allow owners to take full advantage of the best audio soundtracks available,
with decoding of Dolby Digital, Digital Plus, Dolby TrueHD, DTS, DTS-ES
Discrete, Matrix, and DTS-HD Master Audio. In addition, a full suite of
post-processing modes are included, including Dolby Pro Logic IIx and DTS Neo 6.
Krell's proprietary surround modes, Party, General Admission, Front Row, and On
Stage, offer a different way to listen to favorite tracks.The Foundation 4K UHD
also offers features that make it perfect for custom installation, such as 3.5mm
jacks for IR input and 12-volt trigger input and output, as well as RC-5 and
optional rack-mount ears. Additionally, the unit can be controlled with home
automation systems via RS-232 or the Krell web server through its Ethernet
connection. The Foundation also offers features that make it perfect for custom
installation, such as 3.5mm jacks for IR input and 12-volt trigger input and
output, as well as RC-5 and optional rack-mount ears. Additionally, the unit can
be controlled with home automation systems via RS-232 or the Krell web server
through its Ethernet connection.
Legenda istruzioni
 Clicca
per qui per vedere : FOTO PRODOTTO
 Clicca
per qui per vedere : ISTRUZIONI PRODOTTO
Clicca
per qui per vedere : CATALOGO,PROVA RIVISTE SPECIALIZZATE PRODOTTO
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*Il
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