We are a company based in the South East of the UK in Essex
supplying car audio, car performance and tuning parts, plus
more. We have been trading for over 10 years and have great
technical expertise for our products.
VIBE OPTISOUND BMW Plug & Play Amp Sub Front Speaker Kit, BMW E60
VIBE OPTISOUND BMW Plug & Play Amp Sub Front Speaker Kit,
PLEASE MESSAGE US BEFORE ORDERING TO CONFIRM THIS WILL FIT YOUR MODEL BMW
VIBE OPTISOUNDBMWF-V4 BMW Plug & Play Amplifier, Subwoofer & Front Speaker Upgrade Kit
Transform Your BMW’s Sound – Plug & Play Upgrade
BMW builds incredible cars, but the factory Base Audio system is one of the weakest points. The stock system uses low-cost paper speakers, lacks proper tweeters, and has underpowered underseat woofers. The result is flat, thin sound that doesn’t match the quality of the car.
The VIBE OPTISOUNDBMWF-V4 changes everything. This complete plug-and-play upgrade gives you powerful bass, detailed mids, and crystal-clear highs – with no cutting, coding, or permanent modifications.
Why BMW Base Audio Sounds Poor
Paper cone speakers that distort easily
Weak underseat woofers with almost no bass
No dedicated tweeters in many models
Low overall power and efficiency
The result: lifeless, muffled sound that fails to impress.
The solution: a true hi-fi upgrade with dedicated tweeters, strong mids, and proper bass response.
What’s Included in the Kit
High-Efficiency Amplifier – Compact, powerful, and perfectly matched to BMW systems
Underseat Subwoofers – Deep, punchy bass that transforms your music without taking up space
Premium Component Speakers – 4" mids and 1" silk dome tweeters for accurate, detailed sound
BMW-Specific Wiring Harness – 100% plug-and-play, no cutting or splicing
OEM Fitment – Installs directly in factory locations and keeps your car looking original
About VIBE Audio
Since the early 1990s, VIBE Audio has been leading car audio innovation from its UK headquarters. Their award-winning products are sold in more than 50 countries and are trusted by enthusiasts and professionals alike. The OPTISOUND range delivers OEM-fit upgrades with true high-fidelity performance – combining British engineering with modern design.
Key Benefits
Plug & Play installation – no cutting, no coding, fully reversible
Dramatically improved sound quality – clear highs, detailed mids, and powerful bass
BMW-specific design – perfect fit, looks factory, sounds extraordinary
Durable, high-quality components – engineered for long-term performance
Technical Specifications (OPTISOUNDBMWF-V4)
Type: Car-Specific 3-Way Kit (mids, tweeters, underseat subwoofers, amp)
Mid Size: 4? (100mm)
Tweeters: 1? Silk Dome
RMS Power: 115W
Peak Power: 345W
Minimum Input: 55W
Sensitivity: 90dB
Frequency Response: 55Hz – 25kHz
Impedance: 4?
Recommended Amplifier: VIBE POWERBOX65.4M-V7
Vehicle Compatibility
Designed for BMW F & G - Series Base Audio systems:
BMW 5 Series: F10 Sedan, F11 Touring, F18 Sedan
BMW 5 Series: G30 Sedan, G31 Touring, G38 Sedan
BMW 6 SERIES E60 / E61
BMW 6 SERIES E63 / E64
BMW 1 SERIES E81 / E87
BMW 3 SERIES E90 / E91 / E92 / E93
Speaker Upgrade Q & A
Q: Why upgrade my BMW speakers?
A: The factory Base Audio system lacks bass, detail, and clarity. OPTISOUND provides a full hi-fi upgrade with dedicated components.
Q: Is installation difficult?
A: No. The kit is fully plug-and-play with BMW-specific harnesses and baskets.
Q: Will I need to cut or modify the car?
A: No. The upgrade is completely non-destructive and fully reversible.
Summary
The VIBE OPTISOUNDBMWF-V4 BMW Plug & Play Kit is the complete solution to BMW’s weak factory sound. With a dedicated amplifier, powerful underseat subwoofers, and premium component speakers, it delivers the clarity, bass, and detail your BMW deserves. Installation is simple, seamless, and completely reversible.
About Us
Big Sounds Low Skirts is a bricks and mortar car performance & modification shop with its own on-site fitting bay and technician located in Essex in the South East of the UK. This makes us best placed to help with any aftermarket mods or upgrades you may be looking for. Whether it be a dump valve or upgrading the entire audio system in your car we've got you covered.
We've almost finished our new showroom so if you're local or passing feel free to pop in and have a look/chat as we'd love to see you.
We also host occasional breakfast meets here where like minded enthusiasts can come and grab a bacon sandwich or a coffee while admiring each others cars. Typically once a year we'll hold an open day where the manufacturers such as Vibe, Audison, Edge, Hertz, Pionner, Kenwood & Alpine to name but a few come down with their show cars and latest products, this is always a fab day so feel free to look out for the dates on our facebook page, just search Big Sounds Low Skirts.
With over 15 years trading from this location we have become the biggest Performance and car audio shop in Essex. We are not a bedroom seller looking to make a quick buck, we are a devoted team of enthusiasts with a real passion for this industry and get just as excited as you when a new product comes to the market.
We supply car audio, car performance and tuning parts, plus more from a multitude of manufacturers with new items being added daily.
We are an authorised UK dealer / re-seller of every brand we sell and stock.
Full UK registered company and VAT registered
Delivery
We take great care packaging every item to ensure safe shipment to you.All of our items for mainland UK addresses are either sent using Royal Mail, DPD or DHL. If the item is coming direct from a supplier then the courier or delivery method may vary.Please note - For items where the address is not classed as "mainland" for courier delivery (such as BT, IV, HS, high AB numbers, Channel Islands etc) then we reserve the right to charge extra carriage costs due to the increased cost to ourselves.
Returns
Genuinely faulty goods will be replaced or money refunded, however we must be advised of any faulty goods upon receipt of the item.It is the customers responsibility to pay for and ship the item back to us if they are simply no longer required or ordered incorrectly. We give a 1 year warranty on all goods unless otherwise stated - such as ex-demo item which may only have 3 or 6 month warranties.Please note that whilst a lot of our items have 'free' postage, this does not mean that it doesn't cost us money to send the items to you. Therefore we reserve the right that if you have ordered the item incorrectly or no longer want the item we will at our discretion minus the following amounts (based on normal mainland UK addresses, non mainland and non UK maybe more) : Items sent by Post - £3.95 Items sent by Recorded Post - £4.95 Items sent by courier 1kg to 10kg - £9.95 Items sent by courier OVER 10kg - £11.95Item MUST be returned exactly as they were sent to you, we cannot accept items back if you have fitted or attempted to fit the item, this is especially the case for wheel spacers, suspension, car lighting, speakers and subwoofers, as they can no longer be resold as new to another buyer.We do not offer a try before you buy service on items, therefore it is the buyers responsibility to ensure the item is fit for purpose before attempting to use / fit the item.
Payment
We accept payment by: Credit or Debit Card & Paypal.
Unfortunately we are unable to accept Amex or Diners Cards.
Terms
We warranty and represent that the goods are as described in our listings. We specifically disclaim any implied warranties of title, merchantability, fitness for a particular purpose and non-infringement.Customers should satisfy themselves that any item choice made is suitable for their intended purpose or use.Please note that we are a UK based company selling products that have normally been sourced from UK manufacturers and distributors, therefore it is YOUR responsibility to check that the product is suitable for use outside the UK. We cannot be held responsible if the product is not suitable for use outside the UK.We are an authorised dealer / re-seller / agent of all of the items we sell.
