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About the D80
The Audio Research D-80 is a classically beautiful stereo power amplifier that replaces the VT80SE, drawing its circuit design from the esteemed Reference 80S. It operates in Pentode mode with a fully balanced differential signal path, using two pairs of KT150 output tubes per channel for robust power, dynamic range, and musicality. Features include auto-bias for output tubes, XLR balanced inputs, 4-8-16 ohm output terminals, and 12V remote trigger. Hand-built in Minnesota, it offers Reference-grade performance including tonal density, bass control, and spatial expansiveness at a more accessible price point. Power output is rated at 70 watts continuous from 20Hz-20kHz, with low distortion and wide bandwidth.
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