CH Precision Launches M1 Monaural Power Amplifier

Solid-state power amplifiers
CH Precision Launches M1 Monaural Power Amplifier

June 27, 2014 - Being able to truthfully and accurately reproduce today’s highest quality recordings has never been more challenging. Only when each element of the reproduction chain is able to precisely recreate the music’s time and level information can a genuine emotion be felt. The M1, CH Precision’s first mono block and most powerful amplifier of the 1 Series was developed with this in mind. The leading-edge technological advancements implemented on the A1 were further refined, among others is the ExactBias circuitry and a finer loudspeaker matching. Specified at 200W RMS into 8Ω in monaural mode, 2x 200W RMS into 8Ω in bi-amplification mode and 700W RMS into 8Ω in bridge mode, the M1 houses a dedicated 2200VA power transformer providing the amplifier output stage with ample energy to accurately and effortlessly drive the most demanding loudspeakers.


  • Monaural mode
  • Bi-amplification mode
  • Bridge mode

Power Supply

  • Dedicated 2200VA power transformer mounted on silentblocks for minimal vibration transmission
  • Magnetically and electrostatically shielded transformers
  • Hyper fast soft recovery diode bridge rectifier
  • 4-pole 100’000uF reservoir and filtering capacitors
  • Dedicated 20A mains socket for audio power section

Full Analog Signal Path

  • Class AB, fully symmetrical design
  • Fully discrete, ultra low noise, high slew rate design
  • No capacitor in the audio signal path
  • No output relay
  • Argento loudspeaker binding posts and internal wiring

Gain Trimming

  • Trim gain to accommodate loudspeaker sensitivity
  • 24dB range in 0.5dB steps

Global Versus Local Feedback Ratio

  • Ranging from 0% - local feedback only - to 100% - global feedback only - in 10% steps
  • Feedback can be set on the fly from the user interface
  • Independent feedback ratio in bi-amplification mode

Output Stage ExactBias

  • Amplifier output stage and listening room temperature independent bias
  • Patent-pending ExactBias regulation circuitry


  • Non-invasive output stage voltage, current and temperature monitoring
  • Protection procedures in case of output short circuit, open connection or excessive temperature
  • Instantaneous output power and temperature can be displayed on the front panel


  • M1 Monaural Amplifiers: $94,750