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Audison AF M1D Forza Class D Mono Amplifier

by Audison
UPC: 8018823136778
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Audison AF M1D Forza Class D Mono Amplifier

Amplifier | 1000 W total power | 1 x 1200 W @ 1ohm | D-class

AF D companion amplifiers are designed to add powerful amplifier channels to AF bit amplifiers. A plug-and-play Input harness is included to make the connection to AF bit amplifiers straightforward. AF D amplifiers are also perfect for use with systems controlled and managed by a standalone bit processor, such as a bit One HD Virtuoso. AF M1D boasts one high-fidelity amplified channel 600W @4Ω*, 1000W @2Ω*, and 1200W @1Ω* with the audiophile sound of the latest generation Audison D-Class technology. Higher switching frequencies, steeper filtering, and higher-tolerance components deliver sound above and beyond the expectation of Class D – in an amazingly compact package! AF M1D is the only one in the AF D family that can be used also in standalone mode, thanks to a set of manual controls: - adjustable (and defeatable) low-pass 4th-order crossover filter - 0-180° polarity/phase switch - 45 Hz Bass Boost adjustment Combine these functions with the ART DC turn-on from high-level Inputs, the USS speaker-input loading, and the optional VCR-S2 level knob, and this amp can be used to add subwoofers even in systems which lack an Audison AF bit amplifier!

*Output Continuous Power (RMS) @14.4 VDC, 1% THD, All channels driven.


  • Improved audio performance and power thanks to the latest generation of ADT (Audison D-Class) technology
  • Unbeatable power/volume ratio up to 0.68 W RMS/cm³ reaching 81% of efficiency
  • Hi-Res compatibility performance, with an extended audio band up to 40 kHz


Audison D-Class technology
ADT uses a switching frequency twice as fast as many other modern Class D amplifiers using very high-tolerance component parts to keep the timing correct even during temperature extremes. The higher switching frequency of Audison Class D moves noise much farther away from the audible band. Audison Class D amplifiers also use a steeper 4th-order analog lowpass filter, rather than the simpler 2nd-order lowpass filters usually used in competing designs. The steeper filter will keep noise much lower in amplitude – which is good for controlling EMI and preventing infrasonic noise from getting to the tweeters. It also keeps phase shift outside the audible range. The cost is higher – twice as many components are needed for a 4th-order filter compared to the usual 2nd-order filter, and each output channel needs its own filter – but Audison determined through exhaustive listening testing that this design was the best-sounding approach.

Universal Speaker Simulator technology on high-level inputs for maximum compatibility with any type of Head-Unit OEM Source.


Channels    1
Class    D-Class
Hi Level Input    Yes
Low Level Input    Yes
Digital Input    No
Power supply voltage / fuse    11 ÷ 15 VDC
Operating power supply voltage    6.5 ÷ 17.5 VDC
Idling current    1.3 A
Idling current when off    0.005 mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power    65 A
Remote OUT    6.5 ÷15 VDC (150 mA)
Remote IN    4 ÷15 VDC (1 mA)
ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable)    1.5 VDC

Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power    0.03%
Bandwidth A    (-3 dB, 2 VRMS, 4 Ω): 10 Hz ÷ 500 Hz
S/N ratio A    (A weighted @ 1 V): 105 dBA
Damping factor A    (100 Hz, 4Ω, 2 VRMS): 125
Input sensitivity Pre-In    0.6 ÷ 6 VRMS
Input sensitivity Speaker-In    2.2 ÷ 22 VRMS
Total Power RMS    1000 W
Minimum load impedance    1 Ω
Output Power (RMS) @14.4 VDC, 1% THD    1Ch @ 4Ω: 600 W
1Ch @ 2Ω: 1000 W
1Ch @ 1Ω: 1200 W
Adjustable Crossover    Yes

Output power @ 4Ω, 1% THD+N, 14.4 V    600 W
SN ratio (ref. 1W output)    81 dBA

Input Type    Pre-In / Speaker-In
Filter Pass A    Full / Low-Pass 50 ÷ 150 Hz @ 24 dB/Oct.
Inputs/Outputs Phase    (0 ÷ 180 ) deg
Inputs/Outputs Bass Boost    45Hz (adjustable) - (0 ÷ 6) dB
Remote Sub Volume    ±12 dB

Weight    1.95 kg