Audio Research Reference 160M MkII Monoblock

The Reference 160M MkII is a central model in Audio Research's Reference amplifier range, built around a minimalist signal path with a 4-layer circuit board and custom components.

It offers switchable Ultralinear and Triode operation with proprietary auto-bias that continuously adjusts for tube wear, using four KT150 output tubes and two 6H30 drivers, and includes Audio Research's GhostMeter, a window onto the output tubes paired with an adjustable-brightness output meter.

Specifications

• Power: 140W continuous (20Hz to 20kHz)
• THD: approximately 1% at 140W, under 0.04% at 1W
• Tubes: four KT150 output plus two 6H30 driver, also rated compatible with 6550/KT88/KT120
• Inputs: balanced (200k ohms) and single-ended (100k ohms), 2.4V RMS balanced for rated output
• Dimensions: 17.25 in W x 10 in H x 18.5 in D
• Weight: 56 lbs