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We are now building in our Connecticut factory a new type of amplifier with musicality that surpasses that of Class A and the energy-efficiency of newer Class G and H designs. Our iBias designs deliver all of this in a surprisingly compact package – and it also incorporates Internet-based technology that will amaze both audiophiles and systems integrators. The new line includes seven mode...[more]

This design gives the Krell amplifiers lower internal impedance, which allows firmer, more precise control of your speakers. Krell CAST Circuitry delivers the purest signal when connected to Krell CAST equipped preamplifiers. Power Supply Highlights One 750VA toroidal transformer feeds amplifier modules that include the audio circuitry, rectifier, and power supply filtering mounted to an indivi...[more]

Circuitry Highlights Patent pending Krell iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current...[more]

Circuitry Highlights Patent pending Krell iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current...[more]

From decoding the latest lossless audio formats, extensive digital switching, 3DTV pass-through, and more, the Foundation is fully compliant with the digital age. Yet the 7.1-channel processor also features balanced audio outputs, automatic setup and room EQ, and Krell’s legendary robust hardware. A slim new form factor exudes the Krell aesthetic, while allowing placement in smaller equip...[more]

This integrated amplifier has several interesting points, including the use of Tung-Sol KT-150 tubes for the output stage in push-pull configuration. This choice was dictated by their sound quality and details, associated with their obvious power capability. In order to use the KT-150 in the best possible way, Jadis has reworked its schematic design and developed specific new output transformer...[more]

The Krell 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 feedbac...[more]

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 fee...[more]

DarTZeel LHC-208 integrated streaming amplifier darTZeel is proud introducing its first integrated line amplifier with full digital streaming capabilities. Powerful, easy to use, extremely versatile, the darTZee LHC-208 fills the gap between conventional DACs and integrated amplifiers available so far. Key features include: • Newly designed TFT tactile screen for intuitive, user-friendly o...[more]

A 300 VA power supply in a separate chassis isolates the preamp’s sensitive circuitry from electromagnetic interference and noise. Separate supplies power audio and control circuitry, so the control circuits are completely isolated from the audio circuits. The styling of the Momentum preamp perfectly complements the Momentum amplifiers, with copper accents to match the amplifiers&rsqu...[more]

All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current mirrors in the final gain stages use a new output power device that operates at a 73% higher voltage, delivers almost 10% more current, and offers 120 watts of additional ...[more]

Circuitry Highlights Patent pending Krell iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. All signal gain is realized in the current domain using discrete, proprietary, multiple-output current mirrors with extraordinary open loop linearity. There are no generic integrated circuits or op amps used anywhere. Current mi...[more]

This unique housing made of A7075 Super Duralumin, and although difficult to machine with such extreme precision, is an ideal form factor to dissipate extraneous energy coming from the record groove. This, in turn, allows the generator system to reproduce only the clean signal of the music itself. The result is absolute purity of tone, with deep, detailed bass, extraordinary smooth clarity of ...[more]

At the International CES Expo in Las Vegas, Krell introduced the most revolutionary design change in its 33-year history: iBias™, a patent-pending new technology that uses the Class A circuitry preferred by audiophiles yet consumes far less energy than a traditional Class A amplifier does. Because iBias technology eliminates crossover distortion, it allows the low-level details, subtletie...[more]

Platter  the core feature of the The Air Force ONE is the uniquely designed platter. It consists of an air-bearing main platter and an upper sub-platter with(optional) vacuum hold-down. Main Platter: ¨The Main Platter of  The Air Force ONE is fabricated of 19kg of non-magnetic SUS316L stainless steel. The material is first forge processed (heat treated) to increase hardne...[more]

Major features -Air bearing and vacuum hold-down techniques, which have been transmitted from Air Force One -Sits on four feet, employing a newly developed oil damping air suspension system -Platter weighing 10 kg is machined precisely out of solid aluminum (A5056) -Chassis frame structure made of aluminum casting (AC4C) achieves maximum intensity and workability. Dual layer str...[more]

The Audio Research CD6 utilizes quad 24-bit DACs running in mono mode, with dual master oscillators for highest performance; one for 44.1/88.2/176.4 sample rates, the other for 48/96/192kHz sample rates. Sample rate conversion is selectable for all inputs, allowing playback in native resolution or via upsampling, including compact disc and USB. Additionally, there is a selectable digital filter...[more]

500 watts per channel into 8 ohms: The Centaur Mono owner need never worry about power, no matter what speakers are used. The power output is sufficient to drive any speaker, of any impedance or sensitivity, with enough headroom to practically eliminate the possibility of audible distortion from the amplifier. Unique modular design: The Centaur Mono gets its power not from bulking up a smaller de...[more]

250 watts per channel into 8 ohms :With the current to deliver 500 watts into a 4-ohm load and 800 watts into a 2-ohm load, the Centaur has enough power to drive any speaker, even state-of-the-art full-range models. Balanced drive circuit design: Because the Centaur uses only N-type output transistors, it achieves essentially perfect positive/negative balance—something no amplifier that use...[more]

The Wi-Fi-equipped Krell Industries 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. Krell Industries wanted to offer t...[more]

USB input for digital file playback: The Cygnus plays digital music files stored on any USB hard drive or thumb drive. FLAC, WAV and AIFF files are supported. Legacy digital inputs: Five inputs are provided to connect digital source devices such as CD players and satellite radios. Optional USB computer input: Interfaces the Cygnus directly with a computer for playback of files stored on...[more]

PrimaLuna amps are famous for long tube life, running cool, and being absolutely the easiest amplifier to own. What we've done is increase the power and output transformer size, designed and built a larger Adaptive AutoBias board, and all the supporting circuitry required to run eight power tubes instead of four.  Doubling the power and increasing bass slam.Customers can use almost any...[more]

Art Dudley, one of the most famous and well-respected reviewers in the industry, reviewed the DiaLogue Premium power amp as stereo amp, not even in the more powerful monoblock mode.  He was swift to say "I tried to fiind fault with the PrimaLuna DiaLogue Premium.  I failed."  He went on to say that he has had the pleasure of reviewing some remarkable amplifiers, and that the DiaL...[more]

Let's look at what makes it different.  The more you study, the more you will agree with the experts: -Adaptive AutoBias -Swiss made wiring -ALPS Blue Velvet motorized volume control tracks better so a defined stereo image is established and doesn't collapse as you raise and lower volume -TAKMAN Resistors -SCR Tinfoil Caps -AC Offset Killer -New front-end circui...[more]

The DiaLogue Premium Preamplifier contains: -New front-end circuitry. The DiaLogue Premium uses three 12AU7 tubes per channel.  The result is even lower distortion and increased bandwidth.  The change in dynamic range is stunning!  Output impedance is lowered to only 256 ohms, allowing it to mate with every amplifier on the market that we know of, even some older Pass Labs mo...[more]

The Hercules II Mono employs a revolutionary twist on the concept of a fully balanced amplifier. In all balanced amplifiers, mirror-imaged amplifier circuits are used, with one part amplifying the positive half of an audio signal, and the other part amplifying the negative half. Yet in other balanced amps, the two halves are not quite equal, because one uses N-type transistors and the other use...[more]

The LP1 is a departure for us in both size and series designation. The chassis is a compact 13” wide, by 8.6” deep, by 4.5” high. The front panel has the inset Audio Research logo with an engraved line completing the panel, but no handles.  There are simply two switches for Power/Off and Mute/Operate. The entire chassis is silver, and the front panel is only available in Nat...[more]

The LS17 SE maintains the same physical size as its predecessor.  The only cosmetic difference is the updated front panel which replaces the black plastic buttons with round metal buttons, complementing the symmetry of the two control knobs flanking the LED display.  The display shows volume as well as which input is selected.  Front panel controls include power, monitor, mute and p...[more]

Fully complementary circuitry: The Perseus's balanced audio circuitry is essentially two mirror-imaged preamp circuits, one to amplify the positive half of the audio signal, the other to amplify the negative half. The fully balanced design cancels the effects of interference-an important capability considering the low level of the signals inside a phono preamp-and also increases slew rate and f...[more]

The ProLogue Classic CD Player is a true dual-mono design, right down to the dual vacuum tube rectification - another first in a CD player. The power supply is adapted from the award winning ProLogue Three preamp. High quality resistors, mosfets, and Solen capacitors yield superior transient response, detail, and channel separation. The ProLogue Classic CD Player comes equipped with: True Dual M...[more]

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The next generation ProLogue Premium CD Player is an engineering marvel –a cd player that sets a new benchmark in high-performance audio by adding these innovative circuits to the critically-acclaimed original: *New power transformers. Heavy-duty, dual-mono, power transformers increase control and detail. The CD player weighs in at a substantial 33 pounds. *New front end circuitry...[more]

Incorporating the best electronic elements of the original ProLogue Three, plus selected ground-breaking features from the more advanced DiaLogue Series, the next generation ProLogue Premium Preamplifier is an engineering marvel — setting a new benchmark in high-performance audio with the following features: *Home theater pass-thru. Straight from the critically-acclaimed DiaLogue Seri...[more]

Incorporating the best electronic elements of the original ProLogue Series, plus selected ground-breaking features from the more advanced DiaLogue Series, the next generation ProLogue Premium Integrated Amp is an engineering marvel — a single, integrated amplifier that sets a new benchmark in high-performance audio with the following features: *Innovative, new Adaptive AutoBias™ circui...[more]

Incorporating the best electronic elements of the original ProLogue Six and Seven, plus selected ground-breaking features from the more advanced DiaLogue Series, the next generation ProLogue Premium Series is an engineering marvel — a single pair of monoblock amplifiers that sets a new benchmark in high-performance audio with the following features: *Innovative, new Adaptive AutoBias ...[more]

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Incorporating the best electronic elements of the original ProLogue Four and Five, plus selected ground-breaking features from the more advanced DiaLogue Series, the next generation ProLogue Premium Series is an engineering marvel — a single, stereo power amplifier that sets a new benchmark in high-performance audio with the following features: *Innovative, new Adaptive AutoBias circu...[more]

The REF CD9 incorporates four digital inputs: asynchronous USB 2.0HS, AES/EBU, RCA and Toslink. All inputs handle 24-bit/192kHz resolution. As you would expect, the REF CD9 retains the Philips PRO2R transport, still the best dedicated CD mechanism available. It is simply unsurpassed for compact disc playback. Benefitting from what was learned in the development of the Audio Research REF DAC and th...[more]

The S7 is a full range, 3-way design, floor standing loudspeaker that incorporates new tweeter, midrange and bass driver designs which are derived from the engineering triumphs in the MProject loudspeaker. Towering over other S-Series models, the acoustic suspension enclosure of the S7 features curved aluminum side panels that are machined in-house from half-inch thick aluminum extrusions which...[more]

The tweeter portion of the Sasha Series-2 Wilson's Audio baffle is now made from the latest generation of X-Material, like in the Alexia. The midrange portion of the baffle continues to be S-material. S-material was developed specifically for use in midrange baffles, and is a wonder of midrange beauty and low-resonance. In combination with X-material, S-material reduces measurable and audible n...[more]

Constellation Virgo II now includes the same power supply used for Altair. This supply offers numerous advantages. While the original Virgo’s power supply took electrical isolation to a high level with separate transformers and outputs for the audio and control circuits, the Constellation Virgo II supply enables true dual-mono operation, with separate transformers and outputs for left-cha...[more]