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

Channels1

ClassD-Class

Hi Level InputYes

Low Level InputYes

Digital InputNo

Power supply voltage / fuse11 ÷ 15 VDC

Operating power supply voltage6.5 ÷ 17.5 VDC

Idling current1.3 A

Idling current when off0.005 mA

Consumption @ 14.4 VDC, 2Ω, Max Musical Power65 A

Remote OUT6.5 ÷15 VDC (150 mA)

Remote IN4 ÷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 Power0.03%

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-In0.6 ÷ 6 VRMS

Input sensitivity Speaker-In2.2 ÷ 22 VRMS

Total Power RMS1000 W

Minimum load impedance1 Ω

Output Power (RMS) @14.4 VDC, 1% THD1Ch @ 4Ω: 600 W

1Ch @ 2Ω: 1000 W

1Ch @ 1Ω: 1200 W

Adjustable CrossoverYes

CEA SPECIFICATIONS

Output power @ 4Ω, 1% THD+N, 14.4 V600 W

SN ratio (ref. 1W output)81 dBA

INPUTS

Input TypePre-In / Speaker-In

Filter Pass AFull / Low-Pass 50 ÷ 150 Hz @ 24 dB/Oct.

Inputs/Outputs Phase(0 ÷ 180 ) deg

Inputs/Outputs Bass Boost45Hz (adjustable) - (0 ÷ 6) dB

Remote Sub Volume±12 dB

OTHER

Weight1.95 kg