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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]
| Stereo solid state preamplifier |  |
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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]
| Stereo solid state preamplifier | |
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The Line Stage Gain Module employs fully balanced, mirror-imaged circuits made with hand-matched, ultra-low-noise transistors. A unique servo circuit monitors the signal balance and corrects for even minute inconsistencies. If you use a Constellation Audio amplifier, you can feed the Inspiration 2 Preamp’s output to the amp’s
Constellation Switched-Mode Power Supply (C-SMPS) pro... [more]
| Stereo solid state preamplifier |  |
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The improvements in the LS28SE stem from what was learned during the creation of Audio Research’s Reference 160-series amplifiers. Very similar to the wire and parts changes incorporated in the REF6SE and REF PH3SE, the LS28SE also includes upgrading to the same proprietary gold coupling caps used in the REF6SE. These numerous and costly component upgrades elevate the LS28SE’s perfo... [more]
| Stereo solid state preamplifier |  |
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Constellation’s Line Stage Gain Module employs fully balanced, mirror-imaged circuits with hand-matched, ultra-low-noise transistors. A unique servo circuit monitors the signal balance and corrects for any inaccuracies. When used with a Constellation amplifier, it can feed the preamplifier output to the amplifier’s Constellation Direct XLR input, thus bypassing the amplifier&r... [more]
| Stereo solid state preamplifier | |
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The Modulometer™ returns — and it feels like coming home
One glance and you know it’s Nagra. The iconic Modulometer™, inspired by the legendary IV-S recorder, isn’t just beautiful — it’s a symbol of Nagra’s professional roots, where precision and musical integrity are everything. It makes the PREAMP II-S feel like a serious instrument, not jus... [more]
| Stereo solid state preamplifier |  |
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New Architecture
At the heart of the Reference 20 is an entirely new platform engineered to eliminate sources of distortion previously accepted as unavoidable.
The traditional stamped chassis has been replaced with a sophisticated multi-metal, layered construction designed to disperse and control resonant energy. Critical circuits are mounted on cust... [more]
| Stereo solid state preamplifier | |
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Central to the Reference 7 is the same mechanical architecture that defines the Reference 20.
A multi-metal, layered chassis manages resonance through controlled energy distribution, while custom suspended, mass-loaded circuit boards protect the integrity of the signal path. These are core elements of the design, carried forward to preserve the transparency achieve... [more]
| Stereo solid state preamplifier | |
