Description
Audison SR 4.300 4 Channel Amplifier
The Audison SR 4.300 is a compact 4-channel amplifier designed to deliver clean, powerful sound while taking up minimal space. It is ideal for our Land Rover Defender audio upgrade kits, giving the system the power it needs without requiring a large or intrusive installation.
Despite its small size, the SR 4.300 produces impressive output, rated at 85W x 4 channels at 4 ohms. This makes it perfectly suited for powering upgraded front and rear speakers, giving improved clarity, volume and control compared with a standard factory setup.
Audison’s latest Class D amplifier technology allows the SR 4.300 to stay compact and efficient while maintaining the sound quality expected from the Audison range. Built-in crossover controls also make it easier to fine tune the system, whether used with component speakers, coaxial speakers or as part of a larger audio package.
For Defender owners wanting a high-quality speaker upgrade with a discreet installation, the Audison SR 4.300 is a great amplifier choice.
Key features:
- 4-channel compact Class D amplifier
- 85W x 4 channels at 4 ohms
- Ideal for Land Rover Defender audio upgrades
- Suitable for powering front and rear speakers
- Compact design for discreet installation
- Built-in crossover controls
- Clean, controlled sound output
- Efficient Audison D-Class Technology
- Works well as part of a full Defender speaker and subwoofer package
Specification
- 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
- Distortion – THD @ 100 Hz, 4Ω, 70% Rated Power – 0.03%
- Bandwidth A – 10Hz ÷ 35 kHz
- S/N ratio A – 100 dBA
- Damping factor A – 150
- Input sensitivity Pre-In – 0.2 ÷ 5 VRMS
- Input sensitivity Speaker-In – 0.8 ÷ 20 VRMS
- 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
CEA Specifications
- Output power @ 4Ω, 1% THD+N, 14.4 V – Output power @ 4Ω, 1% THD+N, 14.4 V: 75 W x 4 Ch
- SN ratio (ref. 1W output) – SN ratio (ref. 1W output): 82 dBA
Inputs
- Input Type – Pre-In / Speaker-In
- Filters Outputs – PRE OUT full range (Input A)
- Filter Pass A – Ch Filters: – Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
- Filter Pass B – Ch Filters: – Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
- Filter Pass C – Ch Filters: – Full Hi-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
- Filter Pass D – Ch Filters: – Lo-pass: 50 ÷ 3.2k Hz @ 12 dB/Oct.
- Channel Mono – A/B Ch MONO IN (on/off) Yes
- Inputs/Outputs Bass Boost – B Ch (0 ÷12) dB
