Focal Inside BMW 2.1 IMP Speaker Harness for Impulse 4.320 4 Channel Amplifier
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The Focal Inside BMW 2.1 IMP Speaker Harness is a plug-and-play wiring loom that connects the Focal Impulse 4.320 4-channel amplifier to BMW front speakers and two BMW under-seat subwoofers, using BMW-specific connectors. Part of the Focal Inside range, it is listed as compatible with BMW vehicles from 2009 onwards.
Key specifications
- Type: BMW amplifier harness, Focal Inside
- Compatible amplifier: Focal Impulse 4.320
- Compatible vehicles: BMW 2009 onwards
- Configuration: 2 channels front speakers, 2 channels to two BMW subwoofers
- Length: 4m (13ft)
- Connectors: BMW-specific, no soldering required
- Cable: twisted cables to eliminate disturbance
BMW / Impulse 4.320 harness
A plug-and-play wiring harness that connects BMW speaker drivers directly to the Focal Impulse 4.320 4-channel digital amplifier using vehicle-specific connectors for a clean, straightforward install. Two channels drive the vehicle's front speakers; the remaining two channels drive two BMW subwoofers. A Focal Inside IMP Extension Cable I/O 150 is also available if additional cable length is required for your install.
Inside upgrade harness
- Designed for use with the Focal Impulse 4.320 compact 4-channel digital amplifier
- Compatible with BMW speaker drivers and BMW subwoofers
- Vehicle-specific BMW connectors for simple, secure installation
- Enables 2.1 channel amplification within a BMW using existing speaker locations
- Check vehicle compatibility before purchasing: contact us or visit the Focal Inside website
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Specification
| Length | 13ft (4m) |
|---|---|
More specs
| |
What's Included
- Focal BMW 2.1 IMP Harness
Focal
About the Focal IW-BMW-IMP2.1
From our tech experts at CEN
The Focal Inside BMW 2.1 IMP Speaker Harness (IW-BMW-IMP2.1) is a plug-and-play wiring loom that connects the Focal Impulse 4.320 4-channel amplifier to BMW front speakers and two BMW subwoofers using vehicle-specific connectors. No soldering is required. The loom is 4m long and uses twisted cables to minimise disturbance.
Who it suits
This harness suits BMW owners from 2009 onwards who want to integrate the Focal Impulse 4.320 amplifier without cutting or modifying factory wiring. Two channels power the front speakers; the remaining two drive the BMW subwoofers, giving a clean 2.1-channel setup using existing speaker locations.
Our tech experts advise
This harness is designed solely for the Impulse 4.320 and is not compatible with other amplifiers. Confirm your specific BMW's compatibility before purchasing. If the 4m cable run falls short, a Focal Inside IMP Extension Cable I/O 150 is available separately. Installation is priced per vehicle; see our car audio installation page for details.
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Frequently Asked Questions
Q: What does the BMW 2.1 IMP Harness connect?
A: It connects the Focal Impulse 4.320 amplifier so that two channels drive the BMW front speakers and the remaining two channels drive two BMW subwoofers.
Q: How long is the BMW 2.1 IMP Harness?
A: It is 4m (13ft) long.
Q: Which BMW models is the harness for?
A: It is listed for BMW from 2009 onwards. Compatibility varies by vehicle, so contact CEN with your registration before ordering.
