M7 HP

About the M7 HP

The Vandersteen M7-HPA (High-Pass Amplifier) is a revolutionary zero-feedback hybrid-tube monoblock amplifier delivering 600W into 4 ohms, featuring tube gain and driver stages with dual single-ended circuits connected via the speaker load. It includes an integral 100Hz first-order (6dB/octave) high-pass filter to roll off low frequencies, interfacing perfectly with Vandersteen's powered subwoofers or powered-bass speakers such as the Model Seven Mk.II, Model 5A Carbon, and Quatro Wood CT. Designed by Richard Vandersteen in partnership with Dean Klinefelter, it employs liquid cooling for precise temperature control, all NPN bipolar signal transistors, minimal 5-part signal path without emitter resistors, 10 separate power supplies, all-analog circuitry, solid-aluminum-billet chassis, and HRS vibration isolation. Includes proprietary AudioQuest solid-silver speaker cables and 20A power cord. Paired with compatible speakers, it achieves ultimate signal integrity and performance[1][4][7].