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7-channel car amplifier and digital signal processor for select BMW vehicles with HiFi sound system

Item # 975UP7BMW

Audiotec Fischer wants to help you put exceptional sound into your BMW.

Find what Fits your vehicle

Audiotec Fischer wants to help you put exceptional sound into your BMW.

Item # 975UP7BMW

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About the MATCH UP 7BMW

High power and super fidelity

Audiotec Fischer wants to help you put exceptional sound into your BMW. Their MATCH UP 7BMW factory amplifier upgrade will make your BMW's HiFi audio system achieve greatness, offering up to 65 watts RMS to each of your front, rear, and center channel speakers, up to 320 watts RMS for the subwoofer, plus computer-controlled digital signal processing that'll let you tweak the sound to perfection. Note: This amplifier will not work with BMW's Harman Kardon audio system, or in vehicles without underseat subs. To be 100% sure that this amp will work in your BMW, enter your VIN at BMW's website and check the listings — if you see option code S676A, this MATCH amp will replace your factory amp.

High power and super fidelity

Audiotec Fischer wants to help you put exceptional sound into your BMW. Their MATCH UP 7BMW factory amplifier upgrade will make your BMW's HiFi audio system achieve greatness, offering up to 65 watts RMS to each of your front, rear, and center channel speakers, up to 320 watts RMS for the subwoofer, plus computer-controlled digital signal processing that'll let you tweak the sound to perfection. Note: This amplifier will not work with BMW's Harman Kardon audio system, or in vehicles without underseat subs. To be 100% sure that this amp will work in your BMW, enter your VIN at BMW's website and check the listings — if you see option code S676A, this MATCH amp will replace your factory amp.

Simple to install

The UP 7BMW replaces your vehicle's factory amplifier. After you unplug and remove the factory amp, you use the included bracket to mount your UP 7BMW in its place, plug the included adapter cable into the factory amp's harness, and it's ready to go. The amp also features speaker-level inputs, so you could use one to improve the sound in almost any vehicle, even one that isn't a BMW.

Computer-controlled sound processing

Once you've downloaded the DSP PC-Tool app from Audiotec Fischer, you plug your PC or laptop running Windows (IOS not supported) into the amplifier's USB port. A detailed control panel will appear on your computer screen that lets you set virtually every tunable audio parameter to get the best musical fidelity possible in your Bimmer. The visual display shows the resulting sound curve of each setting, so you'll know for sure how your adjustments are affecting audio output.

EQ and time alignment

The built-in processing includes a 30-band graphic equalizer on every channel to compensate for all the dips and bumps in speaker response inside your car, so each speaker will sound its best. The time alignment feature lets you correct for each speaker's placement, so the sound from each speaker gets to you at the same time, centering the stereo image for your sitting position.

Other DSP features

You can configure almost any type of high-pass and low-pass filter on each channel, so every speaker can play at peak efficiency. Filters and EQ can be set separately for each channel, or channels can be linked together for common settings. Augmented Bass Processing optimizes bass response. StageXpander widens the stereo image, while a RealCenter function allows you to focus the sound for both driver and passanger.

Download BMW-customized presets

Audiotec Fischer wants to make sure you get great sound with no hassle by providing you sound setups designed for your BMW. You download the file, and apply it via the DSP PC-Tool app. You can still tweak and tune your system even after a preset has been applied.


Control panel of the DSP PC-Tool software (for the PP 52DSP shown)


Product highlights:

  • 7-channel car amplifier with digital signal processing
  • designed to replace the factory amp in select BMWs with HiFi audio system
  • includes bracket and wiring adapter for installing amp in the factory amp location
Amp Details:
  • front, rear, and center channels: 65 watts RMS x 5 at 4 ohms
  • subwoofer channels: 160 watts RMS x 2 at 2 ohms
  • DSP adjustments and settings made via computer (Windows only) or optional remote control
  • built-in Real Time Analyzer for tuning your system
  • download DSP PC-Tool Software from Audiotech Fischer
  • inputs: 4 assignable speaker-level, 1 optical SPDIF
  • output: mono preamp (3 volts RMS)
  • channel settings can be separate or linked together
  • control button toggles between 2 presets
Adjustment Details:
  • 7-channel 64-bit 195 mHz digital processor
  • time alignment in 3.5 mm (0.0105 msec) increments
  • 30-band graphic EQ with fine tuning
  • 1-band parametric EQ
  • adjustable high- (20-20,480 Hz) and low-pass filters (20-300 Hz)
  • selectable filter slopes (6, 12, 18, 24, 30, 36, 42 dB/octave)
  • selectable filter characteristics (Butterworth, Bessel, Linkwitz, Chebyshev, and self-defined)
  • phase adjustment:
    • adjustable in 11.25° increments on front, rear, and center channels
    • adjustable in 5.625° increments on sub channels
Other Features:

What's in the box:

  • Amplifier
  • Mounting bracket
  • 14" Wiring harness (terminated in a female 42-pin plug on one end splitting into both a male 20-pin plug and a male 8-pin plug on the other end)
  • 58" USB cable (Type-A on one end/mini-B 2.0 on the other)
  • 3-Pin power/ground/remote plug w/set-screws
  • 2-Pin remote plug w/set-screws
  • Four 5 mm counter-sunk torx-head screws
  • Instruction manual

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More details on the MATCH UP 7BMW

Mark G.

Product Research

Overview: The MATCH UP 7BMW is an add-on amplifier and sound processor, designed to easily install into compatible BMWs with the (Option 676) HiFi sound system, offering more power and dynamics over the factory system. The included adapter harness and mounting bracket allow the amplifier to be mounted in the factory amp location, utilizing the existing amp wiring harness, and can even be hardwired in other BMWs where the adapter harness won't work.

DSP: Configuration of the cutting-edge 64 bit DSP in the UP 7BMW processor is straightforward and intuitive using the DSP PC-Tool V4 software, that's downloadable from Audiotec/Fischer's web site (compatible with all Windows operating systems from XP through 10, MAC not supported). The unit features 4 main input channels and an optical input. An Auxiliary Input is also available via an optional MATCH Auxiliary Extension Card Slot (MEC slot) sold separately. All of the inputs are freely configurable to any of the 8 output channels: (2) Front, (2) Rear, (2) Subwoofer, (1) Center, and (1) Line Out. The 5 sections of the DSP PC-Tool include the following:

  • Main: The Main screen, of the DSP PC-Tool, allows you to modify each input with its own 30-band graphic and/or parametric EQ along with both high- and low-pass filters. Filter types include: Butterworth, Bessel, Tschebychev, Linkwitz, and Self-Defined, with available slopes in 6, 12, 18, 24, 30, 36, and 42 db/octave. Other Main options include quick adjustments for Phase, Polarity, and Time alignment and the ability to mute any of the outputs.
  • DCM: This screen lets you activate and configure an optional wired remote, such as the Director or URC.3 (sold separately). Buttons on the remote can be assigned different functions from this screen and also include options for adjusting the Signal Detection Sensitivity for the Main, Digital, and MEC Aux input sources.
  • FX Menu: The UP 7BMW offers FX processing that's specific for each output section: Front, Center, and Augmented Bass.
    • Front Processing: includes StageXpander, which enlarges the sound stage of the front speakers for a wider stereo panorama, and ClarityXpander, which improves the high frequency response for crisper and clearer highs.
    • Center Processing: includes RealCenter, which emphasizes the mono information from the left and right channels, and ClarityXpander which improves the high frequency response.
    • Augmented Bass Processing: Includes Dynamic Bass Enhancement, which extends boosts the deep bass response in relation to the overall volume, and SubXpander, which adds subharmonic tones to the fundamental bass for an ultra-deep bass response.
  • I/O: The Input and Output Configuration screen lets you assign any of the analog, digital, and aux inputs to any of the output channels by simply dragging-and-dropping the icons. Input channels can have 5 bands of either Graphic Shelf EQ or Parametric EQ applied along with Time Delay that's independent for both left and right channels.
  • Time: This page lets you adjust the Phase and Polarity of each input channel as well as setting the distance, in either inches, centimeters, or milliseconds, for the Time Delay. Here, output channels can also be Muted.
  • RTA: The UP 7BMW includes a built-in RTA (Real-Time Analyzer) that can give you a visual representation of the frequency response inside your vehicle.

Class HD Technology: The UP 7BMW combines the efficiency of a Class H amplifier with the principle of a Class D amp. The result is an unsurpassed efficiency that easily outperforms any conventional Class D amplifier. By varying the internal supply voltage based on the amplitude of the input signals, idle losses are significantly reduced and overall efficiency is close to maximum at any time.

Advanced Diagnostics Error Protection, 3rd Generation (ADEP.3): The amplifier utilizes a new ADEP circuit to allow the processor to be integrated with new OEM car stereos. Newer stereos can detect the presence of connected speakers, and when common amplifiers are connected, the radio will display failure messages with some features, such as fader function, being lost. The ADEP circuit avoids these problems without loading the speaker outputs of the factory stereo during high volumes.

Automatic Signal Detection: Switching from analog to the digital input is done automatically as soon as a digital signal is detected on the Optical input. This feature can be deactivated in the DSP PC-Tool software and can be switched manually with an optional remote control.

Start-Stop Capability: The switched power supply of the UP 7BMW assures a constant internal supply voltage even if the battery's voltage drops to 6 volts during engine cranking. If the supply voltage drops below 10.5 volts for more than 5 seconds, the amplifier goes into protect mode (Status LED will light red) to avoid any further battery drain.

Power Save Mode: The Power Save Mode will turn off the internal amplifier stages and the remote outputs when the input signal has dropped off for more than 60 seconds. When a signal is re-applied, the amplifier and remote outputs will reactivate within a second. This feature was developed since many newer vehicles use a CAN or BUS system which may "invisibly" keep the factory radio on for up to 45 minutes after the vehicle has been turned off, thus, keeping the sound system active. The turn-off time can be changed or deactivated completely using the DSP PC-Tool software.

Match Extension Card Slot (MEC): There is an extension card slot for installing additional input cards. (The additional input cards are optional, and sold separately.) Extra input options include Analog (adds two more speaker level channels, for six total, and a 3.5mm stereo preamp input), Bluetooth, and HD-Audio USB. To install an extension card two screws are removed from the end-plate, then the bottom plate slides out, providing access to the inside of the unit.

Note: The UP 7DSP can only accommodate one extension card.

Installation: The UP 7BMW includes a mounting bracket that allows it to be mounted in the same location as the factory amplifier, utilizing the existing mounting hardware. The included wiring adapter plugs into the factory harness, removed from the original amp, and has 2 Molex plugs (System Connector 1 and 2) that plug into the UP 7BMW providing power, ground, and all the speaker input and output wires. If the amp is going to be installed in a non-compatible BMW, the system includes a separate power, ground, and remote terminal-block that can accommodate 8 gauge wire for hardwiring. Pinouts for the System Connectors include:

System Connector 1:

1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20

1. Left rear high-level input (-)                     11. Left rear high-level input (+)
2. Left front high-level input (-)                    12. Left front high-level input (+)
3. Right front high-level input (-)                   13. Right front high-level input (+)
4. Right rear high-level input (-)                    14. Right rear high-level input (+)
5. Right rear speaker output (-)                    15. Right rear speaker output (+)
6. Left rear speaker output (-)                      16. Left rear speaker output (+)
7. Right front speaker output (-)                    17. Right front speaker output (+)
8. Left front speaker output (-)                      18. Left front speaker output (+)
9. Ground                                                     19. +12 Volts
10. Ground                                                   20. +12 Volts

System Connector 2:

21 22 23 24
25 26 27 28

21. Not used                                                  25. Remote in
22. Right subwoofer output (-)                        26. Right subwoofer output (+)
23. Left subwoofer output (-)                          27. Left subwoofer output (+)
24. Center channel output (-)                           28. Center channel output (+)

Left Side Panel Controls:

  • Auto Remote (On/Off): Determines if the automatic turn-on feature is activated or not.
  • Clip LED: Lights red if one of the analog inputs is overdriven.
  • Fuse LED: Will light if one or both of the internal fuses is blown.
  • System Connector 1 socket.
  • System Connector 2 socket.
  • POWER/GND/REM hardwire connector socket.

Right Side Panel Controls:

  • USB Input: A USB Mini-B (2.0) socket is provided for connection to your PC with the provided cable. (Compatible with all Windows operating systems from XP through 10, MAC is not supported.)
  • Control: This pushbutton is used for both switching between software setups (1 and 2) and to initiate or reset the amplifier.
  • Status LED: Indicates the operating mode of the amp and if the undervoltage protection circuit is activated.
  • Control Input: This multi-pin socket is used for an optional wired remote such as the Director or the URC.3.
  • Optical Input: Used for inputting stereo digital signals in the S/PDIF format.
  • Gain: A small Gain dial is provided for adjusting the input sensitivity.
  • Remote Out: This 2-pin plug is used to turn on/off an external amplifier connected to the Line Out socket.
  • Line Out: A mono pre-out is provided for connecting an external amplifier.


  • Output Power RMS/Max:
    • @4 Ohms: 5 x 65 / 130 Watts (Front, Rear, and Center channels)
    • Subwoofer Output @2 Ohms: 2 x 160 / 320 Watts
  • Amplifier Type: Class HD
  • Inputs: 4 x Speaker-level inputs, 1 x Optical S/PDIF (12 - 96 kHz)
  • Input Sensitivity: High-level 2.0 - 8.3 Volts
  • Input Impedance (High-level): 13 Ohms
  • Outputs: 7 x Speaker outputs, 1 x RCA Line Out
  • Output Voltage (Line Out): 3 Volts RMS
  • Frequency Response: 20 Hz - 22 kHz
  • DSP Resolution: 64 Bit
  • DSP Power: 295 MHz (1.2 billion MAC operations per second)
  • Sampling Rate: 48 kHz
  • Signal Converters: BurrBrown (A/D and D/A)
  • S/N Ratio (Digital Input): 105 dB (A-weighted)
  • S/N Ratio (Analog Input): 103 dB (A-weighted)
  • THD: < 0.03%
  • Damping Factor: >100
  • Current Draw: 450 mA
  • Max. Remote Output Current: 500 mA
  • Operational Voltage: 10.5 - 16 Volts
  • Fuse Type: 2 x 25-AMP ATM fuses (ACS)
  • Dimensions: Width - 6.125", Height - 1.875", Depth - 5.125"

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Customer Q&A

12 questions already asked

does the amp have all connections / plugs that factory has? it doesn't look like it, mine is a 2021 X3
[ rick  Sep 10, 2021 ]
4 answers
Mine came just like the detail said, plug and play. I had cartoys install the amp and the supplied bracket worked great. The connections worked perfect on my 08 135i.
[ rick  Sep 12, 2021 ]
If compatible, then yes it should have all the connections if you have the hi-if system.
[ Rick  Sep 11, 2021 ]
Does your x3 have some for of premium sound like HK? This is for 676 stereo code only.
[ Richard  Sep 10, 2021 ]
If your car has a Non Harman Kardan System. No tweeters on the front door side post. It is a plug and play. Harness fits exact. I installed it in my 2020 x2
[ MARK  Sep 10, 2021 ]
do I have to program this amp through my laptop computer or will it run as sent by the factory? i don't want to have to run a program from my laptop, not tech savy
[ Robert  Jun 07, 2021 ]
8 answers
Yes I have to program this amp through my laptop to match with my speakers. I tuned the amp by using my ears
[ Hung  Jun 09, 2021 ]
There is a default tuning and will work out of the box, however it might not be ideal for your specific vehicle. Tuning with the laptop for my specific car did make a difference to me sound wise.
[ Ryan  Jun 08, 2021 ]
The set up is pretty simple. If you don't use the tool the amp will not perform well. Meaning you won't get the full performance. I tweaked my back me and it is amazing no speaker upgrade needed. 1. First download the manual here 2. Then after you purchase the amp download the tool here
[ MARK  Jun 08, 2021 ]
You can just plug it in and it will work, but the sound will be plain. I highly recommend to download the file from the manufacturer's web site and upload to the amplifier. It's very easy and you will see the difference immediately! It's a huge difference! After that you could twick the specific settings, but it's not necessary. With the basic download you may be very sattisfied.
[ OMAR CAMPUZANO  Jun 08, 2021 ]
My Match amp was not pre-programmed. I plugged it in, sounded ok. Then I realized I had to connect the laptop, download the app, then I downloaded three presets (I think, Limousine, Touring, SUV?). Major difference when I loaded/tested those three (these are basically the Match/Audiotec Fischer expert settings; way better ears than mine). The sound blows me away, game changer. I can't include links, but go to Match or Audiotec Fischer website to see install video, plus, you can download the manual for the Match Up 7BMW, shows how to connect, download the software, connect the laptop via USB and pick the preset (or do your own). I'm a semi-techy, so if you're not tech savvy, may be worth bringing it to an audio guy and pay 1-2 hours of labor. Def a major upgrade from my 21 X3. Good luck. Tim
[ Timothy  Jun 07, 2021 ]
You will have to run a program from a laptop. It's pretty easy if you get the file type from the manufacturers website. The file is per car type and model and will then program the Match7 with optimized settings for your specific car. It's so worth it. I am beyond pleased with what it did in my car.
[ Rick  Jun 07, 2021 ]
It's a good amp and sounds good but you have to be tech savvy and use a computer to setup the unit!!! And don't expect Crutchfield to help as no one there will or can help from the tech staff even though I was told that they can help!! The only way they helped me was gave me the distributers name and phone number!! They were helpful! I'm not a programmer but have a little Tech background (Mechanical Engineer but it didn't help), the distributer helped by telling me some of the tricks with the programming and got it done. Now I know not to depend on Crutchfield for help except for mechanical things!!! Musicality and programming you are on your own with Crutchfield (I tried to say it nicely or you wouldn't see this writeup). Good luck in your decision, it's a good Amp and brought out the music from my BMW much better than speakers can do!! I can now hear some Bass from the radio, almost good enough!!
[ Russell  Jun 07, 2021 ]
The amp does come pre-configured with a sound file. Yes, itnwillnwork, but you would be missing out on all the beauty of this amp, have it tuned and you will be amazed by the soundstage
[ Steven  Jun 07, 2021 ]
Will I lose the bluetooth capability of playing audio via my phone if I use this amp without the optional bluetooth part?
[ Edmund  Mar 23, 2021 ]
3 answers
My bluetooth never stopped working just fine but you may have to order a part to squelch the engine noise generator. It is a little amp at factory amp location. If your car has a new droning noise in the interior, you need one.
[ KENNETH  Mar 24, 2021 ]
No. Your phone will still connect via Bluetooth to the BMW head unit. The Bluetooth to the amp is for having an optional interface between the MATCH amp and your phone.
[ Eric  Mar 23, 2021 ]
I can't answer that, but I do know that this is not a true plug n play. Had to return it because it doesn't have enough connections on it for a 2021 BMW X3.
[ Lawrence  Mar 23, 2021 ]
Can this work with the Individual audio system, the option is S752. I got navigation and the center speaker? 2009 e92 335 bmw
[ Alex  Jan 06, 2021 ]
1 answer
It did not work with my car, the harness connector was different. Had to return the amp.
[ MANUEL  Jan 06, 2021 ]
Can you hook it up to a Tacoma 2017?
[ Albert  Feb 23, 2020 ]
1 answer
Hi Albert, thank you for your question. The MATCH UP 7BMW is specifically designed to work with BMW vehicles. There could be options of DSP's and amplifier integration products specifically designed for your Toyota. Please chat with an Advisor online or by phone at 1-800-324-9695. They will be happy to pull up the info we have on your vehicle, and check for factory integration products.
[ Jess  Mar 09, 2020 ]  Staff
Can it be ordered with the model specific setup files installed?
[ Angel  May 06, 2019 ]
2 answers
No you have to down loaded you model specific file here
[ MARK  Jun 08, 2021 ]
I don't think so. However, it's not hard to program it. All it requires is a USB cable connected to a Windows laptop. You probably want to have your installer set it up for you anyway, especially if you change the speakers as well.
[ Paul  May 13, 2019 ]
I plan on purchasing this amp soon for my '14 F31 with HiFi stereo. Because I refuse to grow up, I am also going to get the JL Audio ACP208LG-W3v3 powered sub box. Which Amp Wiring Kit should I use?
[ Markus  Feb 03, 2019 ]
1 answer
The Match Up 7BMW amp comes packaged with the mounting bracket and harness for replacing the factory amp in compatible vehicles. For the JL Audio ACP208LG-W3v3 we recommend using 8 gauge power & ground leads: I hope that helps My bio:
[ Ryan  Feb 06, 2019 ]  Staff
Looking to upgrade my 2011 135i HiFi system. Will this amp retain the stock USB and AUX inputs? Also, will this help clear up the "white noise" that is heard through the speakers on some models?
[ James  Dec 06, 2018 ]
2 answers
Those inputs will be kept but not because this amp has inputs for them but because those inputs connect to the stock radio and this amp works with the stock radio. As for the noise, I don't have any information on it or its cause to confirm either way on this being a fix for it. If its a noise that wasn't always there and goes away when you turn of the radio, then a new amp like this one has a good chance of stopping it. My Bio:
[ Paul  Dec 22, 2018 ]  Staff
The factory USB and aux inputs will be unaffected by the installation of the amplifier. If the "white noise" issue you're describing is caused by the original factory amp then, yes, replacing it with Match Up 7BMW should correct the problem. If the noise is coming from the signal provided by stock stereo, the amp will not correct the issue. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service:
[ Ryan  Dec 22, 2018 ]  Staff
Is the reason this amp is not compatible with the Harmon/Kardon system because the OEM speakers are not 4 ohm?
[ Derek  Jul 11, 2018 ]
1 answer
No, it's because the hk amp uses a fiber optic input and this amp uses analog inputs
[ David  Jul 20, 2018 ]

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