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AV 5.1k Amplifier | 1650 W total power | 2 x 75 W @ 4ohm + 2 x 250 W @ 2ohm + 1 x 1000 W @ 2ohm | AB-class

AV 5.1k, 1650 W (RMS) max, five channels: with its hybrid design, it is the specialist amplifier for front + rear + subwoofer or multi-amplified front + subwoofer systems.

Its high-quality AB Class output stage provides two channels with 250 W (RMS), combined with another pair of A class pure audio channels rated at 75 W (RMS), perfect for active two-way front speaker systems.

The D Class mono section provides 1000 W (RMS) for powerful subwoofer output.

AV 5.1k also allows you to replace the analog input board with the digital one (AV bit IN).

Amplifier Tech Data

Channels 5
Class AB-Class
Hi Level Input Yes
Low Level Input Yes
Digital Input No
Power supply voltage / fuse 11 ÷ 15 VDC
Idling current 3 A
Idling current when off 0.02 mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power 110 A
Remote OUT 12 VDC - 50mA
Remote IN 7 ÷ 15 VDC - 1mA
ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable) Selectable

Amplifier Stage

Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power A, B Ch: 0.05 % | C (sub) Ch: 0.3 %
Bandwidth A (-3 dB) A, B Ch: 5 ÷ 20k Hz
-3 dB) C (sub) Ch: 7 ÷ 350 Hz
S/N ratio A (A weighted @ 1V): A, B Ch: 100 dB
(A weighted @ 1V): C (sub) Ch: 87 dB
Damping factor A (1k Hz @ 4Ω) A, B Ch: 100
(100 Hz @ 4Ω) C (sub) Ch: 80
Input sensitivity Pre-In 0.3 ÷ 5 V RMS
Pre In Impedance 15k Ω
Input sensitivity Speaker-In 1.4 ÷ 24 V RMS
Input impedance Speaker-In 5k Ω
Total Power RMS 1650 W
Minimum load impedance 4Ω / 2Ω / 2Ω
Output Power (RMS) @14.4 VDC, 1% THD • 5 Ch: 75 W x 2 (4Ω) + 140 W x 2 (4Ω) + 600 W x 1 (4Ω)

• 5 Ch: 75 W x 2 (4Ω) + 140 W x 2 (4Ω) + 1000 W x 1 (2Ω)

• 5 Ch: 75 W x 2 (4Ω) + 250 W x 2 (2Ω) + 1000 W x 1 (2Ω)
Adjustable Crossover Yes

CEA Specifications

Output power @ 4Ω, 1% THD+N, 14.4 V Output power @ 4Ω, 1% THD+N, 14.4 V:
75 W x 2 + 140 W x 2 + 600 W x 1
SN ratio (ref. 1W output) SN ratio (ref. 1W output):
75 W Channels: 80 dBA
140 W Channels: 80 dBA
600 W Channels: 78 dBA


Input Type Pre IN / Speakers IN
Filters Outputs Pre OUT Full Range
Filter Pass A Ch Filters (Full / Hi-Pass): 50 ÷ 5k Hz (2 range) @ 12 dB/Oct.
Filter Pass B Ch Filters (Full / Hi-Pass / Band-Pass): 50 ÷ 1k Hz (Hi) / 250 ÷ 5k (Lo) @ 12 dB/Oct.
Filter Pass C Ch Filters (Full / Lo-Pass): 50 ÷ 150 Hz @ 24 dB/Oct.
Remote Sub Volume -50 ÷ 6) dB


Fuse 100 A
Weight 7.2 kg


AV 5.1k
Dimension A 470 mm
Dimension B 399 mm
Dimension C 220 mm
Dimension D 198 mm
Dimension E 58 mm


AV bit IN HD
AV bit IN HD
Digital interface for all AV amplifiers, for perfect digital connection with Audison bit processors provided with AD Link and AC Link connections. By mounting the AV bit IN Digital Interface onto the Voce amplifier series, through the AD Link connection the S/PDIF digital signal will get directly to the high quality internal D/A converters. After these, the signal becomes analog and is imm ediately amplified preventing it from deterioration due to the long paths. The result is extremely high quality music, not achievable with any other analog system. It offers one AD Link and AC Link input, as well as one AD Link and AC Link output in order to drive a multi-amplified system. Thanks to its digital panel with 3 character display and 4 push buttons, you can select the amplifier type, mono or stereo mode, and also the digital channel coming from the audio processor. AV bit IN HD features two new switches on the front panel: one provides you with the ability of turning off the gain control of the amplifier to achieve an improved Signal to Noise ratio. With the second switch you can control the DSP remote start function. Connection to amplifier: remove analog crossover module and insert AV bit IN module into the amplifierâ„¢s front side. It requires no external power supply.
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  • Hybrid design made up of two 75 W A Class channels, two 250 W AB Class channels, and one 1000 W D Class channel
  • Hi-Res audio certification thanks to 4 ÷ 60k Hz bandwidth


Hi-Res audio

According to the definition of HiRes audio provided by JAS (Japan Audio Society – jas-audio.or.jp), Voce amplifiers exceed the above 40 kHz bandwith analog requirement, providing an astonishing 4 ÷ 60k Hz (@ -3 dB, 2 VRMS, 4 Ω).

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