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Power amplifiers stereo — CH Precision M1.1
Description, images, technical data and specifications
CH Precision M1.1
Image source — © CH Precision
The M1.1 is a stereo power amplifier from CH Precision, sitting above the A1.5 with considerably greater output power. The M1.1 represents CH Precision's more ambitious current statement in power amplifier engineering.
Key specs that matter
Input impedance is 94,000 ohms balanced or 47,000/300 ohms single-ended, matching the A1.5. Output power is a substantial 2 x 200W into 8 ohms, rising to 2 x 350W into 4 ohms - considerably more than the A1.5's 150W/275W. Signal-to-noise ratio exceeds 115dB in stereo and bi-amp modes, or 118dB in bridged mode, matching. Total harmonic distortion plus noise is under 0.1% or an exceptionally low 0.01% depending on feedback configuration, also matching. Maximum power consumption is a substantial 2,200W. At 440 x 440 x 266mm and 71kg, the M1.1 represents a considerably more substantial commitment than the A1.5.
Sound and use context
Expect exceptionally clean amplification reflecting the exceptional over-118dB bridged-mode signal-to-noise figure combined with the considerably greater 350W-into-4-ohms output, representing CH Precision's more accomplished current power-amplifier engineering.
Pairing
The flexible bi-amp and bridged operating modes let the M1.1 be reconfigured to suit different system needs.
Alternatives
CH Precision's own A1.5 offers a more accessible alternative within the same broader power amplifier catalogue.
Key specs that matter
Input impedance is 94,000 ohms balanced or 47,000/300 ohms single-ended, matching the A1.5. Output power is a substantial 2 x 200W into 8 ohms, rising to 2 x 350W into 4 ohms - considerably more than the A1.5's 150W/275W. Signal-to-noise ratio exceeds 115dB in stereo and bi-amp modes, or 118dB in bridged mode, matching. Total harmonic distortion plus noise is under 0.1% or an exceptionally low 0.01% depending on feedback configuration, also matching. Maximum power consumption is a substantial 2,200W. At 440 x 440 x 266mm and 71kg, the M1.1 represents a considerably more substantial commitment than the A1.5.
Sound and use context
Expect exceptionally clean amplification reflecting the exceptional over-118dB bridged-mode signal-to-noise figure combined with the considerably greater 350W-into-4-ohms output, representing CH Precision's more accomplished current power-amplifier engineering.
Pairing
The flexible bi-amp and bridged operating modes let the M1.1 be reconfigured to suit different system needs.
Alternatives
CH Precision's own A1.5 offers a more accessible alternative within the same broader power amplifier catalogue.
Specifications
Model name
M1.1
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
94 000
Input impedance (single-ended) (Ω)
47 000 or 300
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
2 x 200
Output power (4Ω) (W)
2 x 350
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
> 115dB in stereo and bi-amp modes, > 118dB in bridged mode
Total Harmonic Distortion + Noise (0% global feedback) (%)
< 0.1
Total Harmonic Distortion + Noise (100% global feedback) (%)
< 0.01
Max power consumption (W)
2200
Damping factor
N/A
Dimensions (mm)
440 x 440 x 266
Weight (kg)
71
Official link
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