2016-2019 BMW 7 Series Audio Amplifier 9393187
Specifications
OEM number
9393187
Specs
Harman
Donor year
2016
Body style
Sedan
Fuel
Gas
Engine size
4.4 L
Transmission
Auto
Drivetrain
AWD
Suspension
Air
Trim
Xdrive m package
Donor mileage
87000
Paint code
A89 Imperial Blue Brilliant Effect
About this part
Also known as
Audio Amplifier
Harman Kardon Amp
DSP Amplifier
Logic 7 Amplifier
Sound System Amplifier
Audio Control Module
Booster Amplifier
What this part does
The audio amplifier receives low-voltage audio signals from the infotainment head unit and boosts them to drive the vehicle's speakers and subwoofers. In BMW models equipped with the premium Harman audio system, this module also serves as a sophisticated Digital Signal Processor (DSP), actively managing equalization, surround sound decoding, and individual channel crossover frequencies. It is mounted in the rear trunk area, secured behind the left-side carpeted trim panel in the electronics bracket. When this component fails, the vehicle typically experiences a complete loss of sound, loud popping or crackling noises from the speakers, or specific audio channels dropping out entirely, even while the iDrive screen continues to display normally.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 750i / 750i xDrive | 2016-2019 | 4.4L |
| BMW | 740i / 740i xDrive | 2016-2019 | 3.0L |
| BMW | 740e xDrive | 2017-2019 | 2.0L |
| BMW | M760i xDrive | 2017-2019 | 6.6L |
| BMW | Alpina B7 | 2017-2019 | 4.4L |
OEM and interchange numbers
9393187
65129393187
65-12-9-393-187
Before you order
This amplifier is specifically calibrated for the Harman surround sound audio option (S688A). It will not function as a replacement for vehicles equipped with the base Hi-Fi system or the high-end Bowers & Wilkins Diamond surround sound system. Match the part number exactly to your original unit.
Because this module sits on the vehicle's fiber optic (MOST) or Ethernet network, it will require coding and programming via a factory-level diagnostic tool after installation to communicate correctly with the head unit and output sound. Before installing the replacement, inspect the trunk cavity and amplifier mounting bracket for signs of water ingress, as moisture from clogged sunroof drains or failing seals is the most common cause of failure for this specific module.
