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Accessories

AF LINK accessory cable can be connected to have 6 additional channels configurable on the bitDrive software.

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The optional VCR-S2 subwoofer volume control provides the ability to adapt the subwoofer level (-20 / + 6 dB) to any personal preference and favorite music genre. VCR S2 features a bulletproof Molex connector.

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AF M4D
4 CH AMPLIFIER - 1040W

FORZA COMPANION AMPLIFIER         

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! The audio band is extended up to 40 kHz earning the coveted High-Resolution certification. Bridging channel pairs results in 520W x 2 @4Ω*, guaranteeing flexible and powerful performance.

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

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Technical Specification

 

POWER SUPPLY

Nominal power supply voltage / fuse:

11 ÷ 15 VDC / 2 x 30A

Pulse operating voltage:

6.5 ÷ 17.5 VDC

Idling current:

1.12 A

Standby current draw:

0.007 mA

Consumption @ 14.4 VDC, Minimum load impedance (Max Musical Power):

47 A

Remote IN:

4 ÷15 VDC (1 mA)

Remote OUT:

6.5 ÷15 VDC (150 mA)

ART – Automatic Remote Turn on/off from Speaker-In

1.5 VDC

Efficiency @ rated power (RMS) @14.4 VDC, 1% THD,4Ω, All Channels:

83%

AMPLIFIER STAGE

Distortion – THD+N @ 1 KHz, 4Ω, 70% Rated Power:

0.05%

Damping factor @ 1 kHz , 4Ω, 2 VRMS:

160

Bandwidth @ -3 dB:

10 Hz ÷ 42 kHz

S/N ratio (A weighted @ 1 V Input, Rated Power) Master Input:

103 dBA

Minimum load impedance:

4 Ch: 2Ω

2 Ch – (Bridge 1/2; 3/4): 4Ω

Output Continuous Power (RMS) @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

CEA SPECIFICATIONS

Output power @ 4Ω, 1% THD+N, 14.4 V:

150 W x 4

SN ratio (ref. 1 W output):

80 dB

INPUTS / OUTPUTS / FILTERS

Inputs

Pre-In / Speaker-In

Input sensitivity Pre-In

 0.6 ÷ 6 VRMS

Input sensitivity Speaker-In

2.2 ÷ 22 VRMS

USS (Universal Speaker Simulation)

active with Speaker IN

SUB remote Volume Control (optional)

 (-12 ÷ +12) dB 

GENERAL REQUIREMENTS

Ambient operating temperature range:

0 °C to 55 °C (32 °F to 131 °F)

SIZE / WEIGHT

Max size W x H x D (mm/inch):

240 x 47 x 156 / 9.44 x 1.85 x 6.14

Weight (kg/lb):

2.04 / 4.49

Features

Enjoy the improved audio performance of the latest generation Audison D-Class technology.

Maximum versatility thanks to the bridging option for each pair of channels.

Extended audio band up to 40 kHz.

Accessories

AF LINK accessory cable can be connected to have 6 additional channels configurable on the bitDrive software.

Read More

The optional VCR-S2 subwoofer volume control provides the ability to adapt the subwoofer level (-20 / + 6 dB) to any personal preference and favorite music genre. VCR S2 features a bulletproof Molex connector.

Read More