Source: Press Release, Last Accessed: 2014/05/15

The Vanguard, displayed for the first time at the High End Show in Munich, combines a high power amplifier with a fully balanced class A Current Mode preamplifier circuit and an optional digital module as well.
According to Krell's press release, Vanguard is one of the most advanced yet affordable products in its history. It 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. An optional, field-installable digital module with USB input, Ethernet audio streaming and apt-X Bluetooth will also be available.
“The name Vanguard connotes leadership and innovation, and that’s exactly what we were going for” Krell president Bill McKiegan said. “Compared with most other integrated amps on the market, the Vanguard is far ahead in technology, performance and design.”
The Vanguard’s amplifier incorporates a massive power supply with a 750 VA toroidal transformer and 80,000uF of storage capacitance, allowing for 200 watts per channel into 8 ohms and doubling to 400 watts at 4 ohms. Two quiet, thermostatically controlled fans permit the use of a surprisingly compact chassis, especially considering how much power the Vanguard produces.
The preamplifier section of the Vanguard borrows its fully balanced, fully discrete Class A circuit concepts from Krell’s top-of-the-line Illusion preamplifiers. According to Krell, Current Mode technology is employed to assure unequaled signal bandwidth, easily enough to handle the latest high-resolution PCM and DSD audio sources without impacting high-frequency response and detail.
A home theater bypass mode lets the Vanguard serve as the core of a surround-sound system without sacrificing two-channel sound quality in any way. Inputs include three stereo RCA and one stereo balanced XLR. High-quality WBT speaker cable terminals provide a secure, electrically ideal connection.
A key option for the Vanguard is the digital module, which can be added at the factory or by a dealer. The digital module includes USB, HDMI, coax and optical digital inputs; Ethernet music streaming controlled through dedicated iOS and Android apps; and apt-X Bluetooth wireless for convenient streaming from phones, tablets and computers. The Vanguard is already available, at a suggested retail price of $3,500.

For more information: http://www.krellonline.com/

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