Focal Impulse 4.320 Amp Compact Digital 4 Channel Amplifier Class D 4x55w RMS
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Focal Impulse 4.320
Compact 4-channel amplifier 55 watts RMS x 4
Big power from a tiny amp
Focal designed their Impulse 4.320 4-channel amplifier to fit almost anywhere inside a vehicle. The Impulse 4.320 sends 55 watts RMS to each of your speakers from a chassis that's smaller than a brick. You can also use an Impulse 4.320 in 3-channel mode to power a pair of speakers with 55 watts RMS each while sending up to 160 watts to a sub.
Plays well with other stereos
The Impulse 4.320 comes with input harnesses that let you connect to any aftermarket receiver or a factory radio. Separate filters for the front and rear channels optimize the sound for your speakers and subs. An adjustable phase control on the rear channels comes in handy for tuning a sub's sound to blend in with front speakers.
Specification
| front channels | switchable high-pass filter (75 Hz) |
|---|---|
| for power wire shorter than 10 feet | 12-gauge power and ground leads and a 15A fuse recommended |
| dimensions | 6-15/16"W x 1-7/8"H x 2-5/8"D |
More specs
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What's Included
- 4-Channel amplifier
- 9" Power/speaker output harness
- Two 25A ATO fuses (one installed in in-line fuse holder)
- 8" Speaker input harness
- 7" RCA line input harness
- 2 Mounting brackets
- User Manual
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
Focal
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