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The Vanguard’s amplifier incorporates a massive power supply with a 750 VA toroidal transformer and 80,000 microfarads of storage capacitance. The tremendous amount of energy on tap provides 200 watts per channel into 8 ohms and 400 watts into 4 ohms. Two quiet, thermostatically controlled fans permit the use of a surprisingly compact chassis. The preamplifier section of the Vanguard ...[more]

The Digital Vanguard incorporates a 200-watt-per channel amplifier and a Class A preamplifier, enclosed in a chassis that borrows its design and construction from the new Krell Foundation preamp/processor, Connect stream player, Illusion preamp and iBias amplifiers. Digital support has been included with USB, HDMI, coaxial, and optical inputs as well as Ethernet audio and Bluetooth streaming. ...[more]

The Vanguard Digital Preamplifier is the first digital only preamplifier from Krell and it couples the latest in digital connectivity and technology with classic Krell analog circuitry. The Vanguard Digital Preamplifier features the same digital front end as the Vanguard Universal DAC and adds full volume control capability. The Vanguard Digital Preamplifier is a perfect centerpiece for an all ...[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]

The Virgo III is an evolutionary step from the former Virgo II and like its predecessor the new Virgo III uses a separate power supply for better isolation and lower noise. Compared to its predecessor, the Virgo III will provide improved remote control operation, smoother operation of front panel knobs, and new internal circuitry that allows a quicker warmup time for virtually instantaneous pea...[more]

The core of the Virgo is Constellation Audio’s Line Stage Gain Module, a fully balanced preamplifier circuit that achieves essentially perfect balance between the positive and negative halves of the audio signal. The musicality and transparency of this circuit are unequalled in any other preamp available. The Line Stage Gain Module also makes possible the Constellation Link, a direct conn...[more]

Vivaldi DAC uses the latest groundbreaking dCS technology including ‘next generation’ versions of the dCS Ring DAC™, Digital Processing Platform and Clocking System so that, as the hub of a digital audio system, an array of features guarantees superlative performance from any digital source.   Vivaldi DAC features standard AES3, Dual AES, SDIF-2 and S/PDIF inputs ...[more]

Its purpose is to provide the differential signal for true balanced operation, a first for this series. With both balanced and single-ended inputs (switch selected), the VM220 will be compatible with every Audio Research preamplifier. In addition, the VM220 uses a super-wide-bandwidth output transformer to provide better frequency extension, explosive musical dynamics, and more powerful bass ex...[more]

The chassis, circuit layout and feature set of the VS110 are almost identical to the VS55, but scaled up to accomodate the greater power output. The chassis itself measures 17 1/2" W by 19" D, and features an anodized, natural-finish top plate labeled with tube location/type, output-tube bias access points and the inset Audio Research logo. The chassis front holds a rocker-style power switch and g...[more]