M/Non M Coupe DSP Amplifier programming

Wassup · Post by **Wassup** » Mon May 09, 2022 11:50 pm

Hi folks, just thought I'd share my thoughts on having reprogramed my DSP amplifier in my M Coupe recently. Appreciate the sound system wasn't an over riding factor especially with an S54 upfront but I couldn't believe how lack lustre the DSP set up was

This was even more apparent when I heard the DSP sound in the E85 and got me thinking about programming possibilities as I learnt that BMW used a very different sound stage equalisation in the Coupe to compensate for cabin acoustics.

Anyhow, after I got my hands on a DSP amplifier from an E85 and plugged it in to the M Coupe, I was blown away

. Next task was to reprogram the original E86 DSP amplifier using the E85 trace file using INPA and the difference was night and day - no more low volume distortion from the Carver subs

Happy to share the trace files if anyone fancies a DIY with INPA or if you're not familiar with INPA coding, happy to help with coding your existing DSP amplifier. Just drop me a PM.

maupineda · Post by **maupineda** » Tue May 10, 2022 12:26 am

Pls share!!!! I would love to try this in my coupe

Wassup · Post by **Wassup** » Tue May 10, 2022 12:33 am

Send me your email address and I'll send you the trace file.

Simon 3.2M · Post by **Simon 3.2M** » Tue May 10, 2022 9:00 am

My coupe doesn’t have DSP

DevonPaul · Post by **DevonPaul** » Tue May 10, 2022 1:41 pm

Simon 3.2M wrote: ↑Tue May 10, 2022 9:00 am My coupe doesn’t have DSP

You could turn the DSC off instead

maupineda · Post by **maupineda** » Tue May 10, 2022 4:12 pm

Wassup wrote: ↑Tue May 10, 2022 12:33 am Send me your email address and I'll send you the trace file.

Hi there, I sent it via private message, let me know if you got it.

Wassup · Post by **Wassup** » Wed May 11, 2022 10:12 am

Got your email address and will send trace file later today.

vanos · Post by **vanos** » Fri May 20, 2022 12:06 pm

I remember reading this a while back and great to hear it makes a noticeable difference. I'm still on the hunt for the perfect Z4MC. No DSP isn't a deal-breaker but if it comes with it I'd love to do this mod, PM inbound!

Mikey_Boy · Post by **Mikey_Boy** » Fri May 20, 2022 3:48 pm

PM inbound from me as well!!

flimper · Post by **flimper** » Mon Jun 13, 2022 12:33 pm

Is this an easy thing to do? You lost me at trace file

Wassup · Post by **Wassup** » Mon Jun 13, 2022 4:03 pm

Honestly, once you get your head around NCS Expert then it's straight forward. The most nervous part is pressing the execute job button

Fortunately there are plenty of online tutorials that explain coding with NCS Expert, plus happy to help if I can.

maupineda · Post by **maupineda** » Thu Jun 23, 2022 2:49 pm

Thanks! i have coded my coupe to have the roadster settings and yes, it is an improvement, the bass tuning is much milder, to the point that you can now go deep into the volume threshold without distorting the woofers so early. it does make a difference!

Wassup · Post by **Wassup** » Sun Jun 26, 2022 1:10 am

maupineda wrote: ↑Thu Jun 23, 2022 2:49 pm Thanks! i have coded my coupe to have the roadster settings and yes, it is an improvement, the bass tuning is much milder, to the point that you can now go deep into the volume threshold without distorting the woofers so early. it does make a difference!

Pleased that you can hear an improvement. It's shocking that the coupe received such a poor acoustic set up, but at least it's one thing that easily sorted without any resl expense

cavanaugh23 · Post by **cavanaugh23** » Fri Sep 22, 2023 1:01 am

Wassup, I tried to send you a PM however I was not successful. Do you or anyone on this thread have a copy of the trace file to share?

Zedebee · Post by **Zedebee** » Fri Sep 22, 2023 7:45 am

cavanaugh23 wrote: ↑Fri Sep 22, 2023 1:01 am Wassup, I tried to send you a PM however I was not successful. Do you or anyone on this thread have a copy of the trace file to share?

You need to have made 3 posts before you can use the PM facility, then the message stays in Outbox until the recipient opens it.

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