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 |