Vibe Optisound OPTISOUNDBMWF-V4 BMW 2 Way Component Speaker Upgrade 115w RMS
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The Vibe Optisound OPTISOUNDBMWF-V4 is a plug-and-play front speaker upgrade kit for BMW, combining 4 inch midrange speakers and 1 inch silk dome tweeters rated at 115W RMS (345W peak) with 8 inch underseat subwoofers. It is part of Vibe's Optisound vehicle-specific range and fits factory locations without cutting or modification.
The kit combines the OPTISOUNDBMW4-V4 4 inch component speakers with the OPTISOUNDBMW84-V3 4 ohm underseat subwoofers.
Key specifications
- Model: OPTISOUNDBMWF-V4
- Midrange: 4 inch (100mm) OPTISOUNDBMW4-V4, 115W RMS / 345W peak
- Tweeters: 1 inch silk dome
- Subwoofers: 8 inch (200mm) OPTISOUNDBMW84-V3, 115W RMS / 345W peak, 4 ohm
- Sensitivity: 90dB
- Impedance: 4 ohm
- Fits: BMW 1, 3, 4, 5 and 6 Series and X3 F-series (see compatibility list)
- Recommended amplifier: POWERBOX65.4
OPTISOUNDBMWF-V4 full upgrade kit for BMW front speakers
This is a complete 3-way speaker upgrade for BMW F-series models. The 1 inch tweeter mounts in the original mirror triangle position, the 4 inch midrange fits the factory door location, and the 8 inch woofer drops into the under-seat enclosure. Car-specific baskets and harnesses mean the installation is entirely non-destructive — no cutting required.
The system includes a high-end crossover with a reference curve setup and can be run as a passive or semi-active system.
Features
- 1 inch tweeter designed for installation in the original mirror triangle mounting parts
- 4 inch midrange designed for the original door mounting position
- 8 inch woofer fits the under-seat enclosure
- Plug-and-play installation with car-specific baskets and harnesses
- High-end crossover with reference curve setup
- Can be used as a passive or semi-active system
- Approved compatibility: 1 Series (F20/F21), 3 Series (F30/F31/F34/F35), 4 Series (F32/F33), 5 Series (F10/F11), 6 Series (F12/F13), X3 (F25)
Explore the full range in Vibe OptiSound Vehicle Specific.
Specification
| Sensitivity | 90dB |
|---|---|
| Frequency response | 55Hz – 25kHz |
| Impedance | 4Ω |
| Sensitivity | 90dB |
| Frequency response | 55Hz – 2500Hz |
| Impedance | 4Ω |
| Recommended amp | POWERBOX65.4 |
More specs
| |
What's Included
- Vibe OPTISOUNDBMWF-V4
Vibe
About the Vibe OPTISOUNDBMWF-V4
From our tech experts at CEN
The Vibe Optisound OPTISOUNDBMWF-V4 is a complete plug-and-play 3-way front speaker upgrade kit for BMW F-series models, rated at 115W RMS (345W peak). It combines 4 inch midrange speakers, 1 inch silk dome tweeters and 8 inch underseat subwoofers. Compatible models include BMW 1, 3, 4, 5 and 6 Series and X3 in F-series body styles.
Who it suits
This kit suits BMW F-series owners who want a full front upgrade in a single purchase. All three drivers mount in factory positions using car-specific baskets and harnesses — no cutting required. Those wanting speakers only, without the underseat woofer, could consider the Vibe Optisound BMW & Mini 2 Way Component Upgrade.
Our tech experts advise
Check the full compatibility list against your exact F-series variant before ordering. The system supports passive or semi-active operation; Vibe recommend the Powerbox 65.4M as a matched amplifier. Professional fitting is priced per vehicle — contact our Nottingham fitting team for details.
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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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: What is included in the OPTISOUNDBMWF-V4 kit?
A: The kit includes a pair of upgrade tweeters, a pair of 4 inch midrange speakers, a pair of 8 inch 4 ohm underseat subwoofers, and BMW adaptors and cables.
Q: Which BMW models does the OPTISOUNDBMWF-V4 fit?
A: It has approved compatibility with the BMW 1 Series (F20, F21), 3 Series (F30, F31, F34, F35), 4 Series (F32, F33), 5 Series (F10, F11), 6 Series (F12, F13) and X3 (F25).
Q: Does the OPTISOUNDBMWF-V4 suit BMW HiFi or Harman Kardon systems?
A: This kit uses 4 ohm subwoofers. For BMW HiFi and Harman Kardon systems, a 2 ohm subwoofer is more suited to the factory amplifier. Contact CEN to confirm the right kit for your car.
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