Anthem announced the Statement M1 single rack unit Class D mono power amplifier offering sophisticated monitoring circuits that maintain proper frequency response, even when powering the heaviest speaker loads using a 120V line.
Engineered with advanced load monitoring and power factor correction technology to satisfy demands up to 2400 W, even when connected to a 120V/15A line. Anthem claims the M1 will win over skeptics who think Class D amplifiers aren't suitable for hi-end sound systems. The M1's frequency response is load-independent with the difference in response between a 2-ohm load and an open circuit is just 0.1 dB. Between 4 ohms and 8 ohms there is no change in frequency response at all.
The M1 is also a true “double-down” amplifier with 1000W into 8 ohms and 2000W into 4 ohms, with total harmonic distortion remaining under 0.1% from 20 Hz to 20 kHz. Class D amplifiers provide tremendous value over traditional amps because of their efficient output from a smaller form factor, and the M1 is no different. Occupying only a single rack unit, Anthem also outfitted the new Statement amplifier with a heat pipe cooling system that allows multiple M1s, with feet removed, to be rack-mounted directly on one another. Fanless and easy-to-integrate, the M1's design makes it a serious contender whether installed in the listening room or in an equipment closet.
Since not every household has the ideal 240V mains to handle peak power demands, Anthem's Statement M1 uses a proprietary load monitoring system. Included in the system is a digitally modeled time constant of the circuit interruptor, something that does not trip the instant its maximum current is reached. Similar to slow-blow (time-lag) fuses and service panel breakers, it is meant to allow momentary current surges which do not last long enough to result in excessive heat.
In addition, the M1 contains active power factor correction to maximize available power. Without it, significantly less power is available. The result is that while the M1 can put out 2 kW continuously when fed by 240V mains, it can still put out 2 kW for the duration of typical musical peaks when fed by a dedicated 120V 15A line, without causing circuit interruption.
- Power Output continuous, 20 Hz to 20 kHz, <0.1% THD+N
- 8 Ω 1000 W
- 4 Ω 2000 W
- 3 Ω 2400 W
- 2 Ω >2000 W depending on line voltage regulation
With 120V AC supply the amplifier's maximum output into impedances 4 Ω and lower, as well as its maximum duration, vary depending on line voltage regulation.
- Frequency Response 20 Hz to 20 kHz
- open circuit ±dB
- 8 Ω ±0.1 dB
- 4 Ω ±0.1 dB
- 2 Ω ±0.2 dB
- Power Bandwidth 1000 W at 8 Ω 5 Hz to 45 kHz
- THD+N at 1 kHz, 8 Ω
- 1 W = 0.01 %
- 10 W = 0.01 %
- 100 W < 0.03 %
- 1000 W < 0.06 %
Price and Availability
The Anthem Statement M1 will begin shipping November 9, 2011 for $3,499 in the U.S. and $3,799 in Canada.