Vibe Optisound OPTIVXKT-V8 6.5 Inch Vauxhall Component Speaker Upgrade 90w RMS
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The Vibe Optisound OPTIVXKT-V8 is a 6.5 inch (165mm) plug-and-play component speaker upgrade kit for Vauxhall vehicles. It pairs OPTI6C speakers rated at 90W RMS (270W peak) with SLICK1-V7 tweeters, and includes Vauxhall-specific adapter brackets, cables, tweeter fittings, wave diffusers and sound deadening. Part of Vibe's Optisound vehicle-specific upgrade range.
Key specifications
- Speaker: OPTI6C 6.5 inch (165mm), 2-way
- Power: 90W RMS, 270W peak
- Sensitivity: 94dB
- Frequency response: 54Hz to 25kHz
- Impedance: 4 ohm
- Mounting depth: 61mm (2.4 inch)
- Mounting diameter: 142mm (5.6 inch)
- Tweeters: SLICK1-V7 (1 pair included)
- Fitment: Vauxhall-specific brackets and cables included
Optisound 6.5 inch Vauxhall speaker upgrade kit
The supported Vauxhall models and years are listed in the Specification tab.
The Optisound kits include everything needed to fit your speakers and optimise sound performance — no car modifications required.
Who is it for?
Designed for Vauxhall drivers who want better sound without altering their vehicle. The Optisound range covers a wide variety of makes and models with vehicle-specific fitment kits — the Vibe Optisound T5 is one example for VW Transporter owners.
Why upgrade?
Upgrading your speakers is often the most effective first step in improving in-car sound. The OPTI6C speaker delivers enhanced volume and detail from a straightforward installation.
What is included?
- OPTI6C 6.5 inch component speakers
- SLICK1-V7 tweeters with fitting hardware
- Vauxhall-specific adapter brackets and cables
- Wave diffusers
- Sound deadening
- Adjustable speaker baffle
Explore the full range in Vibe OptiSound Vehicle Specific.
Specification
| Sensitivity | – 94dB |
|---|---|
| Frequency Response | – 54Hz – 25kHz |
| Impedance | – 4Ω |
| Mounting Depth | – 2.4” (61mm) |
More specs
| |
What's Included
- 1 Pair OPTI6C speakers
- 1 Pair SLICK1-V7 Tweeters
- 1 Pair VIBE Wave diffuser
- 1 Pair Anti VIBE sound deadening
- 2 Pairs Vauxhall Speaker Adapter brackets
- 2 Pairs Vauxhall Speaker Adapter Cables
- 1 Pair Tweeter fittings
Vibe
About the Vibe OPTIVXKT-V8
From our tech experts at CEN
The Vibe Optisound OPTIVXKT-V8 is a 6.5 inch (165mm) plug-and-play component speaker upgrade kit designed for a wide range of Vauxhall vehicles. The OPTI6C speakers are rated at 90W RMS (270W peak), with 94dB sensitivity and a frequency response of 54Hz to 25kHz. The kit includes SLICK1-V7 tweeters, Vauxhall-specific adapter brackets and cables, wave diffusers and sound deadening.
Who it suits
This kit suits Vauxhall drivers who want improved clarity and volume without altering their car. Supported models include the Astra, Corsa, Insignia, Mokka, Zafira, Vivaro and more. Drivers without a vehicle-specific requirement may consider the Vibe Slick 6C V7 instead.
Our tech experts advise
Check the Specification tab to confirm your exact Vauxhall model and year are listed before ordering. The mounting depth is 61mm and mounting diameter is 142mm, so verify door cavity clearance. No car modifications are needed for a correct fit. Professional installation is priced per vehicle — see our fitting service in Nottingham.
Explore the full Vibe range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Vibe
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
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Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: Do I need to cut or modify my car to fit this kit?
A: No. The OPTISOUND kit includes Vauxhall specific adapter brackets and adapter cables so the speakers fit the factory locations and plug into the factory wiring.
Q: What is in the OPTIVXKT-V8 kit?
A: 1 pair of OPTI6C speakers, 1 pair of SLICK1-V7 tweeters, 1 pair of VIBE wave diffusers, 1 pair of Anti VIBE sound deadening pads, 2 pairs of Vauxhall speaker adapter brackets, 2 pairs of Vauxhall speaker adapter cables and 1 pair of tweeter fittings.
Q: Which Vauxhall models does the OPTIVXKT-V8 fit?
A: It is listed for models including the Astra, Insignia, Meriva, Mokka, Adam, Zafira, Corsa and Vivaro, across the year ranges shown in the Specification tab.
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