A collection of the finest amplifiers and preamplifiers inspired by the majestic beauty and power of Earth’s tectonic volcanism.
Dual-Monaural Amplifier
The № 632, is a fully differential, fully discrete, dual-monaural audio amplifier capable of driving loudspeakers with effortless dynamics and incredible sonic detail. Designed and built with Pure Path circuit design philosophy, the № 632 provides a deep, expansive soundstage with extremely accurate image placement.

Fully Discrete Monaural Amplifier
The flagship of the 600 Series amplifiers, the № 631, is a fully differential, fully discrete, monaural amplifier powerhouse capable of driving virtually any loudspeaker with effortless dynamics and incredible sonic detail. Designed and built with Pure Path circuit design philosophy, the № 631 provides a deep, expansive soundstage with extremely accurate image placement.

Dual-Monaural Preamplifier
The Mark Levinson № 626 dual-monaural preamplifier combines unsurpassed analog audio performance with advanced digital audio processing to push the reproduction of your source material to new levels of realism. At the heart of the № 626 is its proprietary Pure Path fully discrete, direct-coupled, fully balanced, dual-monaural signal path design with a discrete, balanced R-2R ladder volume control for the highest level of accuracy and best possible sonic performance.

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