Audison SR 4.300 4-Channel Amplifier

4-Channel Amplifier

The Audison SR 4.300 4-channel amplifier with crossover and great power packed into ultra-compact dimensions (85 W x 4  4Ω)SR line, perfected by taking full advantage of the capabilities of the latest amplification devices. After numerous listening tests with professionals and enthusiasts, Audison's R&D team decided to adopt a new class D technology called ADT (Audison D-Class Technology) for this line of amplifiers, which has made it possible to considerably reduce their size, totally preserving the audio performance that characterises every Audison design.

As far as the electronic design is concerned, every aesthetic and functional detail of the Audison SR 4.300 has been taken care of, resulting in a compact amplifier made of extruded aluminium 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.

Features:

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

Specifications:

• Amplifier Tech Data
  • Channels: 4
  • Class: D-Class
  • Hi Level Input: Yes
  • Low Level Input: Yes
  • Digital Input: No
  • Power supply voltage / fuse: 11 ÷ 15 VDC / 1 x 30A
  • Operating power supply voltage: 6.5V ÷17 VDC
  • Idling current: 1.6 A
  • Idling current when off: 0.03 mA
  • Consumption @ 14.4 VDC, 2Ω, Max Musical Power: 25 A
  • Remote OUT: 6.5 ÷ 15 VDC (150 mA)
  • Remote IN: 6.5 ÷ 15 VDC (1 mA)
  • ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable): 1.5 ÷ 7 VDC
• Amplifier Stage
  
  • Total Power RMS: 520 W
  • Minimum load impedance: 
    @ 4Ch: 2Ω
    @ 3Ch: 2Ω + 2Ω + 4Ω
    @ 2Ch: 4Ω
  • Output Power (RMS) @14.4 VDC, 1% THD:
    4Ch 85 W x 4 (4Ω)
    4Ch 130 W x 4 (2Ω)
    3Ch 80 W x 2 (4Ω) + 250 W x 1 (4Ω)
    3Ch 130W x 2 (2Ω) + 260 W x 1 (4Ω)
    2Ch 250 W x 2 (4Ω)
  • Adjustable Crossover: Yes