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AF M1D 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.

Amplifier Tech Data

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

Amplifier Stage

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

CEA Specifications

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

Inputs

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

Other

Weight 1.95 kg

Dimensions

AF M1D
Dimension A 240 mm
Dimension B 47 mm
Dimension C 156 mm

Box Content

REMOTE IN-OUT AF AMP
REMOTE IN-OUT AF AMP
Provided remote in-out cable to manage Power-on and Energy Save mode.
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SPK OUT 2CH
SPK OUT 2CH

Provided cable for AF M5.11 bit with two pairs of labeled cables to connect a single voice coil or dual voice coil subwoofer, or two subwoofers.

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PRE IN CABLE 2 CH
PRE IN CABLE 2 CH

Provided in pair. Two stereo RCAs interconnection to connect Forza bit amplifier with after-market sources with PRE-OUT outputs provided with Forza amplifiers.

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Accessories

VCR-S2
VCR-S2
The optional VCR-S2 subwoofer volume control provides the ability to adapt the subwoofer level to any personal preference and favorite music genre. VCR S2 features a bulletproof Molex connector.
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AF LINK CABLE
AF LINK CABLE

The Audison AF Link is an accessory cable to connect the DSP OUT outputs of the Audison AF bit amplifiers (amplifiers with integrated DSP) to the PRE IN inputs of the Audison AF D amplifiers.

Look at all the connection examples in the Owner’s manual !

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Features

  • 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

Technologies

AF LINK CABLE
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.

AF LINK CABLE

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

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