




Focal Inside 2.2 IMP Harness for Impulse 4.320 4 Channel Amplifier & ISUB Twin
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The Focal Inside 2.2 IMP Harness is a plug-and-play wiring loom for the Focal Impulse 4.320 4-channel amplifier, connecting two front speaker channels and two ISUB Twin subwoofer channels without cutting factory wiring. It is part of the Focal Inside vehicle-specific integration range.
For a single PSB200 subwoofer instead, see the Focal Inside 2.1 IMP Harness.
Key specifications
- Type: amplifier harness, Focal Inside
- Compatible amplifier: Focal Impulse 4.320
- Configuration: 2 channels front speakers, 2 channels to two ISUB Twin subwoofers
- Cable length: 1m
- Cable construction: twisted cables to eliminate disturbance
- Connectors: specific connectors, no soldering required
Connects Impulse 4.320 front speakers plus two ISUB Twin subs
A plug-and-play harness that connects front speakers and two ISUB Twin subwoofers to the Focal Impulse 4.320 amplifier without modifying factory wiring.
- Designed specifically for the Focal Impulse 4.320 compact 4-channel digital amplifier
- Uses two channels to amplify a vehicle's front speakers
- Uses the remaining two channels to drive two Focal ISUB Twin subwoofers
Inside upgrade harness
The 2.2 IMP Harness is part of the Focal Inside range of vehicle-specific integration cables. It provides full amplification through the Impulse 4.320 without modifying your car's existing wiring. A compatible option for extending the amplifier's input and output connections is the Focal Inside IMP Extension Cable I/O 150.
Check your vehicle compatibility by contacting us or checking the Focal Inside website.
Explore the full range in Focal Wiring Looms.
Specification
| Length | 1m (3.3ft) |
|---|---|
More specs
| |
What's Included
- Focal 2.2 IMP Harness
Focal
About the Focal IW-IMP-2.2
From our tech experts at CEN
The Focal Inside 2.2 IMP Harness (IW-IMP-2.2) is a 1m plug-and-play wiring loom for the Focal Impulse 4.320 4-channel amplifier. It connects two channels to front speakers and two channels to a pair of Focal ISUB Twin subwoofers, without cutting or modifying factory wiring. Twisted cable construction reduces electrical interference.
Who it suits
This harness suits anyone fitting a Focal Impulse 4.320 alongside two ISUB Twin subwoofers who wants a clean, reversible installation that preserves the car's original loom. It is part of the Focal Inside vehicle-specific integration range and requires no soldering.
Our tech experts advise
This harness is only compatible with the Impulse 4.320 amplifier, not other Focal amplifiers. If you plan to run a single subwoofer instead, the Focal Inside 2.1 IMP Harness is the correct choice. Always verify your vehicle is listed on the Focal Inside compatibility guide before ordering. Fitting is priced per vehicle; speak to our installation team in Nottingham.
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Frequently Asked Questions
Q: What does the Focal 2.2 IMP Harness connect?
A: It connects the Focal Impulse 4.320 amplifier so that two channels drive the front speakers and the remaining two channels drive two Focal ISUB Twin subwoofers.
Q: What is the difference between the 2.1 and 2.2 IMP harnesses?
A: The 2.1 harness runs one PSB200 subwoofer from the second pair of channels, while the 2.2 harness runs two ISUB Twin subwoofers.
Q: Do I need to solder or cut wires to use the 2.2 IMP Harness?
A: No. It uses specific plug-in connectors, so no soldering or modification of the existing wiring is required.


















































