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Audison

SR4.500V2SR4.500V2 4-Channel Amplifier

Elegant and functional design with rounded corners to minimize space, facilitating installation. Built-in USS (Universal Speakers Simulator). Full built-in crossover section.

Highlights

  • Elegant and functional design with rounded corners to minimize space, facilitating installation.
  • Built-in USS (Universal Speakers Simulator).
  • Full built-in crossover section.
  • Optional VCR-S1 remote control offers the possibility to adjust the subwoofer level (-20 / + 6 dB) to your musical preference.

Key specs

Full specs
Channels
4
Class
D-Class
Hi Level Input
Yes
Low Level Input
Yes
Digital Input
No
Power supply voltage / fuse
11 ÷ 15 VDC / 2 x 25A
Operating power supply voltage
6.5 ÷17 VDC
Idling current
1.7 A

Key specs

Full specs
Channels
4
Class
D-Class
Hi Level Input
Yes
Low Level Input
Yes

Highlights

Overview
  • Elegant and functional design with rounded corners to minimize space, facilitating installation.
  • Built-in USS (Universal Speakers Simulator).
  • Full built-in crossover section.
Overview
  • Elegant and functional design with rounded corners to minimize space, facilitating installation.
  • Built-in USS (Universal Speakers Simulator).
  • Full built-in crossover section.
  • Optional VCR-S1 remote control offers the possibility to adjust the subwoofer level (-20 / + 6 dB) to your musical preference.
  • Balanced high-level inputs for connecting to the OEM head unit speaker output
  • Low-level RCA for after-market speakers.
  • ART (Automatic Remote On/Off) function.
  • Remote IN / OUT socket to allow control of multiple amplifiers.
  • PRE-OUT allows for system expansion.
  • The Audison SR 4.500 4-channel amplifier with crossover features great power packed into ultra-compact dimensions (130 W x 4 @ 4Ω). As far as the electronic design is concerned, every aesthetic and functional detail of the Audison SR 4.500 has been taken care of, resulting in a compact amplifier made of extruded aluminum with rounded corners, which facilitates the installation of the product in narrow spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, there is no need for internal cooling fans, which often cause noise and dust accumulation. In keeping with tradition, the SR amplifiers confirm their vocation for versatility by including on all models a complete filter section, suitable for any kind of audio system configuration. The controls, protected by a satin-finished aluminium panel, are located on the top panel of the amplifier, so that they can be easily reached from above, even after the product has been installed. When the system includes an Audison bit processor, the filter section can be totally excluded.
Highlights

Key features

  • Elegant and functional design with rounded corners to minimize space, facilitating installation.
  • Built-in USS (Universal Speakers Simulator).
  • Full built-in crossover section.
  • Optional VCR-S1 remote control offers the possibility to adjust the subwoofer level (-20 / + 6 dB) to your musical preference.
  • Balanced high-level inputs for connecting to the OEM head unit speaker output
  • Low-level RCA for after-market speakers.
  • ART (Automatic Remote On/Off) function.
  • Remote IN / OUT socket to allow control of multiple amplifiers.
  • PRE-OUT allows for system expansion.
Specs

Amplifier Tech Data

13
Channels4
ClassD-Class
Hi Level InputYes
Low Level InputYes
Digital InputNo
Power supply voltage / fuse11 ÷ 15 VDC / 2 x 25A
Operating power supply voltage6.5 ÷17 VDC
Idling current1.7 A
Idling current when off0.09 mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power40 A
Remote OUT6.5 ÷ 15 VDC (150 mA)
Remote IN6.5 ÷ 15 VDC (1 mA)
ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable)1.5 ÷ 7 VDC

Amplifier Stage

10
Distortion - THD @ 100 Hz, 4Ω, 70% Rated Power0.08 %
Bandwidth A10 Hz ÷ 35 kHz
S/N ratio A105 dBA
Damping factor A200
Input sensitivity Pre-In0.2 ÷ 5 VRMS
Input sensitivity Speaker-In0.8 ÷ 20 VRMS
Total Power RMS880 W
Minimum load impedance@4Ch: 2Ω @ 3Ch: 2Ω + 2Ω + 4Ω @ 2Ch: 4Ω
Output Power (RMS) @14.4 VDC, 1% THD4Ch 130 W x 4 (4Ω) 4Ch 220 W x 4 (2Ω) 3Ch 120 W x 2 (4Ω) + 480 W x 1 (4Ω) 3Ch 220 W x 2 (2Ω) + 440 W x 1 (4Ω) 2Ch 450 W x 2 (4Ω)
Adjustable CrossoverYes

CEA Specifications

2
Output power @ 4Ω, 1% THD+N, 14.4 VOutput power @ 4Ω, 1% THD+N, 14.4 V: 125 W x 4 Ch
SN ratio (ref. 1W output)SN ratio (ref. 1W output): 83 dBA

Inputs

9
Input TypePre-In / Speaker-In
Filters OutputsPRE OUT full range (Input A)
Filter Pass AFront Ch Filters - Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
Filter Pass BFront Ch Filters - Full Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
Filter Pass CRear Ch Filters - Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
Filter Pass DRear Ch Filters - Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct
Channel MonoA/B Ch MONO IN (on/off) Yes
Inputs/Outputs Sub CH(-20 ÷ 6) dB
Inputs/Outputs Bass BoostB Ch (0 ÷12) dB

Other

1
Weight2.12 kg

Dimensions

5
Dimension A264 mm
Dimension B234 mm
Dimension C155 mm
Dimension D135 mm
Dimension E47.5 mm
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