Option Audio AIR-D4 Amp 4 Channel Class D Compact Amplifier 330w RMS
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OPTION AIR-D4 4-Channel Amplifier
Massive sound upgrade: The OPTION AIR-D4 is a powerful 4-channel Class-D power amplifier that breathes new life into your vehicle speakers. Enjoy significantly more dynamics, brilliance and enormous volume reserves compared to operating directly on the standard radio.
Ultra-compact design: Thanks to the extremely small dimensions (micro format), this amplifier can be installed almost anywhere in the vehicle. It fits easily behind the dashboard, glove box or under the seat - ideal for modern vehicles with limited space.
Perfect for original radios: With built-in high-level inputs and the auto-turn on function, the power amplifier is optimised for easy integration into factory installations. A separate remote cable is not required as the amplifier detects the signal directly.
Versatile 4-channel configuration: Take full flexibility: Power your front and rear systems simultaneously, or bridge two channels to power a front system and an additional subwoofer with powerful power.
High-efficiency Class-D technology: The modern digital circuit guarantees maximum performance with minimal heat generation and low power consumption. This ensures a permanently stable sound quality and protects the on-board electronics of your vehicle.
Specification
| Class-D power amplifier | Yes |
|---|---|
| Operating voltage | 10-16V |
| RMS power (4 ohms) | 100 watts |
| RMS power (2 ohms) | 165 watts |
| RMS power bridged (4 ohms) | 30 watts |
| RMS power bridged (2 ohms) | not possible |
| Frequency response | 20Hz-20kHz |
| High-pass filter | 40Hz-400Hz |
| Low-pass filter | 40Hz-400Hz |
| Total harmonic distortion (THD) | <0.1% |
| Minimum loudspeaker impedance | 2 ohms |
| Signal-to-noise ratio (A-weighted) | >90 dB |
| Security | 60A |
| Dimensions | (W x H x D) 105.7mm x 41.7mm x 208mm |
| Cable cross-section (recommended) | 10mm² |
What's Included
- OPTION AIR-D4 4-channel amplifier
- Subwoofer level remote control including Velcro strap for flexible mounting
- 2x Plug & Play adapters for input signal to RCA
- 1x Plug & Play adapter for output signal to Molex
- 1x Plug & Play adapter for output signal to loose ends
- 1x Plug & Play Adapter Line Out for connecting an additional power amplifier/active subwoofer
- Mounting/fastening plates including 6 screws (for mounting on the amplifier) and 4 screws (for mounting in the vehicle)
- Allen key
FAQs
Q: How do I choose the right amplifier for my speakers or subwoofer?
A: Match the amplifier's RMS output per channel to the RMS handling of your speakers or subwoofer at the same impedance. The Specification tab lists the power figures. If in doubt, contact CEN with your setup and we will recommend a match.
Q: What wiring do I need to install this amplifier?
A: You will need an amplifier wiring kit sized to the amplifier's power draw, typically including power and earth cable, a fuse, RCA leads and a remote wire. CEN stocks complete wiring kits, and the amplifier's fuse rating is the guide to the cable gauge required.
Q: What class of amplifier is this and does it matter?
A: Class D amplifiers are compact and efficient, ideal for subwoofers and modern installs. Class AB designs are traditionally favoured for outright sound quality on mid and high frequencies. The class is listed in the Specification tab where provided.
Q: Will an amplifier work with my factory head unit?
A: Yes, in most cases. If your head unit has no RCA outputs you will need a line output converter to feed the amplifier a clean signal. CEN stocks line output converters and can advise the right one for your vehicle.
Q: Can CEN install this amplifier?
A: Yes. CEN offers professional amplifier installation from our Nottingham premises, including secure mounting, wiring and setup. Contact us to book.
About the brand
Option Audio
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