Focal Inside SPK Sim Impedance Simulator for Impulse 4.320 4 Channel Amplifier
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The Focal Inside SPK Sim is a plug-in impedance simulator designed for use with the Focal Impulse 4.320 4-channel amplifier. It maintains the correct load on your vehicle's audio system, preventing error messages when factory speaker drivers are replaced with Focal Inside speakers.
Key specifications
- Type: impedance simulator, Focal Inside
- Compatible amplifier: Focal Impulse 4.320 compact 4-channel digital amplifier
- Purpose: prevents error messages after removing factory speaker drivers
- Connectors: ISO connectors to simplify mounting
- Installation: plug-in
Impedance simulator for Impulse 4.320
When factory speaker drivers are removed and replaced with Focal Inside speakers, the vehicle's audio system can detect the change and trigger error messages. This impedance simulator plugs straight in to restore the correct load, keeping the system stable and error-free.
Inside upgrade impedance simulator
- Designed specifically for use with the Focal Impulse 4.320 4-channel amplifier
- Prevents error messages triggered by removing factory speaker drivers
- Maintains correct impedance load on the vehicle's audio system
- Ensures a clean, error-free Focal Inside speaker installation
To complete your Focal Inside install, the Impulse 4.320 system is also supported by the Focal Inside IMP Extension Cable I/O 150 and the Focal Inside Volkswagen VW Y-ISO T-Harness.
Explore the full range in Focal Inside.
Specification
| Type | Wiring |
|---|---|
| Series | Inside |
| Article Number | SPEAKER-SIM |
| Country of Manufacture | China |
More specs
| |
What's Included
- Focal Speaker Sim
Focal
About the Focal SPEAKER-SIM
From our tech experts at CEN
A Focal Inside wiring harness, connecting a direct-fit system to the vehicle’s own wiring without cutting into the factory loom.
Who it suits
Owners fitting a Focal Inside system who want the work reversible and the car returnable to standard.
Our tech experts advise
Harnesses are specific to vehicle, year and which factory audio system the car was built with, and the wrong one simply will not work. We confirm against your exact vehicle before ordering — get in touch. See car audio installation.
Explore the full Focal range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Focal
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Focal Inside Series
The Focal Inside offer is aimed at all drivers wishing to replace their car's original system with a hi-fi quality Plug & Play solution that integrates easily, without modifying the interior. Different configurations are available by brand (over 50 brands), by car model (1000 vehicle models).
Focal Car Audio
Deliver exceptional sound clarity and precision for your vehicle.
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Frequently Asked Questions
Q: Why would I need the Focal SPK Sim?
A: If removing the factory speaker drivers causes your vehicle's audio system to show error messages, the SPK Sim plugs in to restore the correct impedance load and keep the system error-free.
Q: Which amplifier is the SPK Sim designed for?
A: It is designed for use with the Focal Impulse 4.320 compact 4-channel digital amplifier.
Q: How does the SPK Sim connect?
A: It uses ISO connectors to simplify mounting, so it plugs in without cutting wires.
