Rogue Audio M-180 Monoblock Power Amplifiers

The M-180 is a tube monoblock power amplifier from Rogue Audio, rated at 180 watts with separate 4 and 8 ohm output taps. It uses four KT88 output tubes, two 12AU7 and one 12AX7, and operation is switchable between ultralinear and pure triode.

The circuit is derived from Rogue's Apollo amplifiers and uses ultra-wide bandwidth, mechanically isolated output transformers. Inputs are balanced XLR and RCA. The M-180 Dark adds a dark faceplate.

Specifications

• Power: 180 watts, 4 and 8 ohm taps (each amplifier)
• Tubes: 4 x KT88 output, 2 x 12AU7, 1 x 12AX7, matched
• Operation: switchable ultralinear or pure triode
• Inputs: balanced XLR and RCA
• Input impedance: 200 kohms
• Input sensitivity: 1.0 V RMS
• Dimensions: 14.5 x 7 x 19 in (W x H x D), each
• Weight: 55 lbs (24.9 kg) each
• Finish: machined aluminum faceplate in silver or black, standard or Dark