With two pre-amps you can make a stereo preamp or ‘hybrid’ power amplifier. It is important to note that tubes are high voltage low current and from a conventional/modern circuit design ...

[Simon’s] design adds an on board regulated power supply and a volume control ... and tolerance for low operational voltages. This amp design uses a plate voltage of 12, although the 12AU7 ...

Packed with unique insights into audio design and performance, as well as complete amplifier designs and schematics, this book takes you through the causes of distortion, measurement techniques, and ...

Opinions expressed by Forbes Contributors are their own. Technology journalist specializing in audio, computing and Apple Macs. Probably one of the most celebrated amplifiers ever made—the 33/ ...

You now have the opportunity to own a piece of Naim's hi-fi history at a reduced price. The British brand launched the Nait ...

The legendary designer is famed for founding Matchless and his early Bad Cat builds –now he’s returned to the boutique firm ...

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The crisp design lines are complemented by two rotary ... factor of the other 9000 Series components, the 9000P stereo power amplifier is a visual match. The right-aligned power button, LED ...