Description
AF companion amplifiers are designed to add powerful amplifier channels to AF bit processor amplifiers. A plug-and-play signal input harness is included to make connection to AF bit amplifiers straightforward. AF companion amplifiers are also perfect for use with systems controlled and managed by a standalone bit processor, such as a bit One HD Virtuoso. AF companions have a “straight wire” architecture, without analog preamp functions such as crossover filtering, and are intended for use with external processors.AF M4D boasts four high-fidelity amplified channels 160W x 4 @4Ω*, 260W x 4 @2Ω* 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!
Specifications:
AMPLIFIER TECH DATA
Channels: 4
Class: D
Efficiency: 83 %
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: 1.12 A
Idling current when off: 0.007 mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power: 47 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: 0.05%
Bandwidth A: 10 Hz ÷ 42 kHz
S/N ratio A: 103 dBA
Input sensitivity Pre-In: 0.6 ÷ 6 VRMS
Input sensitivity Speaker-In: 2.2 ÷ 22 VRMS
Minimum load impedance 4 Ch 2Ω, 2 Ch - (Bridge) 4Ω
Output Power (RMS) @12.0 ÷ 14.4 VDC, 1% THD: 4Ch @ 4Ω: 160 W x 4, 4Ch @ 2Ω: 260 W x 4, 2Ch (Bridge 1/2; 3/4) @ 4Ω: 520 W x 2
Adjustable Crossover: No
CEA SPECIFICATIONS
Output power @ 4Ω, 1% THD+N, 14.4 V: 150 W x 4
SN ratio (ref. 1W output): 80 dB
INPUTS
Filters Inputs: Pre-In / Speaker-In
Remote Sub Volume: (-12 ÷ +12) dB
OTHER
Fuse: 2 x 30A
Weight: 2.04 kg
Specifications:
AMPLIFIER TECH DATA
Channels: 4
Class: D
Efficiency: 83 %
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: 1.12 A
Idling current when off: 0.007 mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power: 47 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: 0.05%
Bandwidth A: 10 Hz ÷ 42 kHz
S/N ratio A: 103 dBA
Input sensitivity Pre-In: 0.6 ÷ 6 VRMS
Input sensitivity Speaker-In: 2.2 ÷ 22 VRMS
Minimum load impedance 4 Ch 2Ω, 2 Ch - (Bridge) 4Ω
Output Power (RMS) @12.0 ÷ 14.4 VDC, 1% THD: 4Ch @ 4Ω: 160 W x 4, 4Ch @ 2Ω: 260 W x 4, 2Ch (Bridge 1/2; 3/4) @ 4Ω: 520 W x 2
Adjustable Crossover: No
CEA SPECIFICATIONS
Output power @ 4Ω, 1% THD+N, 14.4 V: 150 W x 4
SN ratio (ref. 1W output): 80 dB
INPUTS
Filters Inputs: Pre-In / Speaker-In
Remote Sub Volume: (-12 ÷ +12) dB
OTHER
Fuse: 2 x 30A
Weight: 2.04 kg
Used Frequently Asked Questions
- What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
- What is the warranty? All of our used items come with a 90-day warranty.
- What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
- Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
- Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
- Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
- Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
- Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.