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Power amplifiers mono — Anthem M1
Description, images, technical data and specifications
Anthem M1
Image source — © Anthem
The M1 is a mono power amplifier from Anthem, built with an exceptionally high damping factor and rated output. Anthem is a Canadian manufacturer known primarily for AV receivers and processors, and the M1 represents the brand's dedicated mono power amplifier offering for a serious multichannel or two-channel installation.
Key specs that matter
Rated output is 1000 W into 8 ohms, doubling to 2000 W into 4 ohms. Input sensitivity is 100 mV. Signal-to-noise is 113 dB with distortion at 0.01%. Damping factor is 1400. At 57 x 490 x 476 mm and 9 kg it is remarkably light for its exceptional rated output, consistent with an efficient switching or Class D output stage rather than a conventional linear design.
Sound and use context
Expect an extremely powerful, high-damping-factor presentation, with the very high output-to-weight ratio suggesting a switching or class D output stage - a capable performer offering exceptional power density well beyond what its modest weight alone would suggest.
Pairing
The 20 kOhm balanced input impedance works with any modern preamplifier without gain concerns, so integration should present no particular challenge.
Alternatives
Anthem's broader amplifier and AV processor range forms natural partner components for a system built around this brand, worth exploring for buyers wanting a coherent Anthem-based multichannel installation given the brand's particular strength in that category alongside its amplification. Anthem broader AV processor and receiver catalogue makes this mono amplifier a natural fit for a serious multichannel installation built around the brand own processing electronics. A dealer conversation about specific loudspeaker impedance and sensitivity is worthwhile given the amplifier considerable power reserve. Given the exceptional 2000 W output into 4 ohms, checking the available mains circuit capacity in the installation room is a sensible precaution before the unit arrives. Anthem well-regarded warranty and service network is worth confirming directly with a dealer before committing to a purchase at this level, particularly given the amplifier unusually light chassis relative to its considerable rated output. Overall this remains a powerful, efficient choice for a demanding multichannel installation. Cable gauge should also be sized appropriately given this amplifier considerable current delivery.
Key specs that matter
Rated output is 1000 W into 8 ohms, doubling to 2000 W into 4 ohms. Input sensitivity is 100 mV. Signal-to-noise is 113 dB with distortion at 0.01%. Damping factor is 1400. At 57 x 490 x 476 mm and 9 kg it is remarkably light for its exceptional rated output, consistent with an efficient switching or Class D output stage rather than a conventional linear design.
Sound and use context
Expect an extremely powerful, high-damping-factor presentation, with the very high output-to-weight ratio suggesting a switching or class D output stage - a capable performer offering exceptional power density well beyond what its modest weight alone would suggest.
Pairing
The 20 kOhm balanced input impedance works with any modern preamplifier without gain concerns, so integration should present no particular challenge.
Alternatives
Anthem's broader amplifier and AV processor range forms natural partner components for a system built around this brand, worth exploring for buyers wanting a coherent Anthem-based multichannel installation given the brand's particular strength in that category alongside its amplification. Anthem broader AV processor and receiver catalogue makes this mono amplifier a natural fit for a serious multichannel installation built around the brand own processing electronics. A dealer conversation about specific loudspeaker impedance and sensitivity is worthwhile given the amplifier considerable power reserve. Given the exceptional 2000 W output into 4 ohms, checking the available mains circuit capacity in the installation room is a sensible precaution before the unit arrives. Anthem well-regarded warranty and service network is worth confirming directly with a dealer before committing to a purchase at this level, particularly given the amplifier unusually light chassis relative to its considerable rated output. Overall this remains a powerful, efficient choice for a demanding multichannel installation. Cable gauge should also be sized appropriately given this amplifier considerable current delivery.
Specifications
Model name
M1
Input sensitivity (mV)
100
Input impedance (balanced) (Ω)
20 000
Input impedance (single-ended) (Ω)
10 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
1000
Output power (4Ω) (W)
2000
Gain (dBu)
29
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
113
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.01
Max power consumption (W)
300
Damping factor
1400
Dimensions (mm)
57 × 490 × 476
Weight (kg)
9
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