Here at John Kleis Audio we have considerable experience with BMWs and upgrading the inadequate audio systems in them. It’s such a popular manufacturer here for audio upgrades that we have obtained both a BMW 4 Series & a BMW 1 Series to showcase a few of the options we can offer people. You own a great car that deserves a great system to match it.

They are here almost every day the shop is open and is worth a listen to open your eyes (or ears!) to what can be achieved in these cars without actually seeing anything. Please call first to make sure the vehicle you want to listen to is at our premises.

Most BMWs, i.e. 1, 2, 3, 4, 5, 6, 7, X1, X3, X4, X5, X6, Z4, I3, I8 & Mini’s all share nearly identical set ups. This is a 4” speaker in the front (sometimes not even tweeters are installed), 6” mid-bass drivers under each front seat (so quiet we’ve given them the nickname, the ‘ghost woofer’) and a set of 4” speakers in the rear.

If you own any of the cars above get in touch and enquire about either of the set packages below or we can tailor something that is more specific to your requirements.

 

BMW Audio Upgrade Package 1

This consists of upgrading the front door speakers. First, we soundproof as much as possible inside the door and also on the door card itself. This is using a mixture of Skinz Pro 2mm & 6mm Skinz Thermoacoustic liner to give the speaker an improved environment to work in and reduce resonance. This also helps with reducing road noise coming through the front doors. We then replace the basic 4” speakers with the Eton 2 Way Component System. This kit consists of 4” Speakers plus separate tweeters. We can either flush mount the tweeters in your factory mouldings or for the more original look we can order in factory tweeter housings directly from BMW. All speakers plug directly into factory wiring so there’s no need to cut any cables. The Etons have the largest variety of custom-fit models meaning even with the new G series models there is 0 modification carried out for the installation. This keeps your manufacturer’s warranty completely intact.

This gives you a far clearer sound and superior separation. We do this package for £549.00 fully installed. As we are part of the Four Master Network you will have a lifetime warranty on the system whilst the vehicle is in your possession.

 

BMW Audio Upgrade Package 2

This consists of our Package 1 alongside an Audison 4 Channel Amplifier. This will give the front speakers more control and more power.

In turn, meaning audio quality is improved even further at all volume levels and should you wish to, you will have a far more powerful & louder listening experience.

The Amplifier also powers the factory underseat woofers to make them more defined and controlled with more output.

The Audison SR Amplifier we use redefines Class D amplification. With new hyper-efficient chassis design, the compact case size belies the brutish power available inside. Balanced high-level inputs ensure noise is kept to a minimum. This four-channel specimen can be run in four, three or two-channel mode and is 2 Ohm stable. Bypass, Hi pass and Lo Pass filters are all included.

The Audison SR4.300 runs the original underseat mid woofers in Stereo to reproduce the mid bass the way the Artist intended.

We also use an official Audison BMW harness that utilises the original plugs meaning no modification is carried out upon installation either. Great for keeping that vehicle as original as possible and not affecting any manufacturer warranty.

This package is £1195 supplied and fitted. As we are part of the Four Master Network you will have a lifetime warranty on the system whilst the vehicle is in your possession.

 

BMW Audio Upgrade Package 3

As featured in our BMW M135i Demo Car this is our most popular package. This consists of fitting our package 2 above, plus Replacing the factory 6” seat speakers with the Audison  8” Bespoke BMW woofers available in either 2ohm or 4ohm impedance for improved system composition versatility. We then power all these new upgraded speakers with the Audison SR4.300 Amplifier mentioned in Package 2. These Audison Underseat woofers are the best around and we have auditioned most, if not all of the options!

This Audison SR4.300 also runs the formidable Audison underseat 8” mid woofers in Stereo to reproduce the mid bass the way the Artist intended.

We also use an official Audison BMW harness that utilises the original plugs meaning no modification is carried out upon installation either. Great for keeping that vehicle as original as possible and not affecting any manufacturer warranty.

This system needs to be heard to be believed, which can be listened to via appointment in our own BMW M135i.

This package is £1749.95 supplied & fitted. As we are part of the Four Master Network you will have a lifetime warranty on the system whilst the vehicle is in your possession.

Add A Digital Sound Processor

To get the most out of your system, be it our Package 2 or our Package 3 or any amplified audio system, a DSP is a must. The Audison Bit Nove is a multi-function digital sound processor featuring both an Analogue and Digital Input, capable of transforming ordinary OEM (original equipment manufacturer) into a high-performance audio system.

The Audison Bit Nove is a powerhouse of technology fully dedicated to listening pleasure: since 2007, the year in which the Audison bit One was first introduced, Audison has never stopped delivering innovation to the digital processors segment. The bit Nove was born from this unique know-how within the industry, the perfect tool to expand a car audio system maximizing its performance.

Setting the parameters of each input single channel, setting the delays according to the listening position, adjusting crossovers and equalizers for each of the 9 output channels; all of these operations can be managed by the PC.

The difference between a processed sound and non-processed sound can also be demonstrated in both our BMW 4 Series & Our M135i to show just how much of an improvement it makes.

This adds a cost of £650 fitted to package 2 or 3.

 

BMW Full Digital Upgrade (Full DA)

To optimize the best transfer of signal, the Audison Bit DMI can pick up the BMW’s MOST signal and convert it to a Toslink optical output for the Audison Bit Nove. This will retain the utmost signal integrity and keeping the audio controls built into the OEM head unit such as volume, balance and tone controls – as well as the hands-free kit, navigation system, and parking sensor alerts unaltered. Going down this route requires the Audison Bit Nove option.

No high-level speaker inputs, No internal BMW amplifier, just pure Full Digital Audio Signal.

This costs a further £650 fully installed

This option is needed when upgrading Harman Kardon audio systems within the BMW’s.

 

 

All the above packages are not inclusive of the factory tweeter mounts if required. 

When installing the Bit DMI, depending on the specification of the car, it may require coding if a MOST amplifier is not factory provided with the car. If coding is not performed the DMI will not work. Contact us to find out more.

*”Lifetime” means the period for which a vehicle is subject to retained ownership by the original customer.

We are now offering 0% Finance on 6, 9 & 12 Months.

All the above packages are what we recommend based on our extensive experience with BMW’s. They produce awesome results and will not disappoint. However, if you want something tailored for you please call us on 01189 866 224 or email us at info@johnkleis.com and we will talk you through options.