Best Value in the Market
The M1 enjoys all of the attributes of our award-winning Statement Class AB amplifiers but through exclusive Anthem technologies, goes far beyond the current capabilities of Class A, Class AB and prior Class D amplifiers in the market.
The proprietary design employs all of the advantages of a Class D amplifier — high output, high efficiency, compact size — while avoiding the typical Class D limitations such as difficulty driving low-impedance (high-end) speakers, power line contamination, reliability issues and substandard audio quality. The absence of accurate dynamics is so common that it frequently goes unnoticed, but through the M1, music and movies are delivered with breathtaking realism.
Addressing the Class D bias
The “D” in Class D does not stand for digital. It was simply the fourth type of amp recognized and classified by the IEEE. The first was Class A, the second Class B, the third Class C, etc.
Contrary to the bias that exists among high-end enthusiasts and across the industry in general, the Class D design is not inherently flawed. The truth is that no existing designs have been able to reach the Class D’s inherent potential for performance. It is not the technology that yields fine audio performance but rather the implementation of the technology. At Anthem, we agree that most Class D amplifiers are poor performers. However the M1 uses Class D amplification of a different ilk (see later section on Class D for a full discussion).
The M1 is not a digital amp!
There are no A/D or D/A converters in the signal path. The amplifier’s control system continuously varies the width of the output pulse train in direct relation to the analog input signal. In essence, a side-to-side variation in width is analogous to a signal’s more familiar up-and-down amplitude variation, not at all the same as a digital string of 1s and 0s where all pulses have the same width.
Much has been written about Class D amps having twice the efficiency of conventional amplifiers at full output, but there’s more to this. Under normal conditions an amplifier operates at only a fraction of its full output capability. At 1/8th of its maximum output (the typical working level of an amplifier), our M1 is six times more efficient than a conventional amplifier.
|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.|
|Height with feet||2 1/4 inches (5.7 cm)|
|Height without feet||1 rack unit|
|Width standard handles||19 1/4 inches (49 cm)|
|Width rackmount handles||19 inches (48.3 cm)|
|Depth||18 3/4 inches (47.6 cm)|
|Weight (unpacked)||20 lb (9 kg)|