The factory Harman Kardon Premium Audio System in the Golf 8 GTI/R is supposed to be “premium” sound quality.
However, this was not the case when it was leaving customers disappointed and wanting more.
Customers found themselves upgrading to a Fender subwoofer, changing the coding in the amplifier module to “Beats” claiming it makes it better. Which may do something.
BUT, with this custom amplifier tuning, it will make the Harman Kardon actually worth something!
Tuning was done using a calibrated RTA microphone and a good amount of time spent tweaking to ear based on my custom system. Now obviously this amplifier and the speakers used have lots of limitations so it is not anything compared to a custom audio setup or aftermarket amplifier/system. Tuning was done with an all around sound in mind vs a more focused or specific sound. This is about as good as the system can be without making physical hardware changes.
Improved Bass
Louder Output
Better highs, mids, and lows
Better ability for tuning with on screen controls
All factory features such as surround, seating focus, EQ and other controls still work as designed.
In addition to this tuning, poly-fill can be used to fill the subwoofer box. This will help improve the lows and make the subwoofer seem as if it is in a larger enclosure.
Poly-fill rolls can be purchased here:
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I was cautious about replacing a module with aftermarket but this was super straight forward and the results are really as advertised. Solved the travel assist not available error immediately without arguing with the dealer. Further not having the car nag me for keeping a death grip on the wheel is a relief. Couldn't see why I had horn issues reinstalling the airbag but within minutes on a Saturday (!) I got reply email with some great guidance. Pay attention to the horn contact bars, it was not obvious I had tweaked one. With a little advice I had it all back together in minutes. Fantastic service. I couldn't be more pleased or grateful. Thanks!
I worked with Ryan during my appointment and he was smart, kind, and great to deal with. Everything went as planned and I am super happy with the lights!
I dont have it yet but im super excited to get it and hopefully it works! I dont really know how long its going to take so hopefully it comes fast.
This is such a nice programming feature to have. No longer need to change to custom mode every time I get in the car! Working with Anthony was very easy and straightforward. Thanks for the great product !
Anthony is a very cool dude! He answered all my questions and was very professional. The whole process was completed quickly and efficiently. I took my car out that night to test the lights and it was awesome! If you are having doubts about doing the activation, trust me and do it. You will not be disappointed and make sure you have Anthony do the activation for you. He does a great job and he’ll save you a ton of money! Thanks Anthony!
Worked with Ryan, who was super helpful and ensured that I understood the ins and outs of the features I was purchasing. Test drove the vehicle the evening of the coding and was very happy with both the drive mode memory and the matrix headlight unlock. Highly recommend both purchases.
Anthony activated the digital matrix headlight on my Q8 etron. He was punctual to our meeting, walk me through the whole process and did in a timely fashion. Highly recommended!
Amazingly quick and simple, just make sure to have a good internet connection or cell service! Yes this can be done through your phone! These guys are the shit!
Exactly as described. Very helpful getting everything set up. Definitely recommend!
Anthony was great to work with. I wasn't 100% prepared yet he took his time to walk me through the process. Would purchase from ACM Technik again.
Audio is noticeably improved. Big ups to Ryan for coming out setting me up. 10/10 would buy again
Thanks to the team for proving a seamless way to get the headlights we paid for. Take that, the government!
Just super easy and awesome.
Just super easy and awesome.
