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BMW G series 3 / 4 / M3 / M4 options

Although the G series cars have a very similar speaker lay out to the F series cars, BMW changed how all systems were wired. Gone is the typical head unit at the front of the car which would power the speakers directly or feed an amplifier in the boot either via 4 analogue channels or MOST fiberoptic. In its place is an MGU (Media Graphics Units) and RAM (Receiver Audio Module) which is located in the boot. The RAM is essentially the kind of amplifier which would have been inside the old style head units, IE still very low power.

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Happily, all OEM audio system are now 6 channel minimum, meaning the mid bass and the front mid range at least now have their own dedicated channels even in the Base Audio system. With all the 'head units' now effectively in the boot, it is also slightly easier to upgrade all cars compared to the F series cars.

 

In the UK, BMW offered 3 audio levels in the 2 series platforms.

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Base Audio - No tweeters, 4" in the front door, 6.5" under seat mid bass, 4" in the rear door, high resistance speakers

Hi-Fi - Tweeters in the front doors with non branded grills, 4" in the front door, a centre speaker with tweeter, 8" under seat mid bass, 4" in the rear door. Low resistance speakers

Harmon Kardon - separate booster amp for the under seat mid bass, metal dome tweeters with branded grills, 4" in the front door, a centre speaker with tweeter, 8" under seat mid bass, 4" in the rear door with tweeter, surround speakers.

 

While the Harman Kardon in these cars isn't 'bad' for a factory system, there is still a huge amount to be gained dynamically and tonally in adding a DSP amp, replacing the cheap factory speakers and adding a dedicated sub to give real sub bass.

Sound Package 1 - 3 way front speaker upgrade

£1299

Sound Package 2 - DSP Amplified system

From £2099

Sound Package 3 - DSP Amplified active system with digital integration

 From £2899

Sound Package 4 - Separate DSP / Multi Amplifier upgrade

£9999

Sound Package 5 - Subwoofer

From £699

All prices include VAT

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