Burmester audio upgrade decisions
1) Amplifier with DSP
Option A: Match UP DSP10. Looks like it has good specs, can keep using all factory speakers. They have a downloadable tune for cars with stock speakers. Slight limitation being you can’t have all inputs connected and add additional options like Hi-def Bluetooth. Maybe that’s not a big deal.
Option B: Helix V Eight. I would lose the center speaker. Are there any benefits though compared to the Match option? They look very similar on paper.
2) Speakers
Option A: Match UP speakers. Noted that the front bass are 4 ohms on these, less power will be provided by the amp
Option B: Focal speakers (the direct-fit ones). Similar to Match but front bass are 2 ohm so they’ll get more power.
Which speakers sound better though?
I look forward to updating the forum as I install whichever system I end up with. Thanks for your help.




So I’d probably change the speakers at the same time as the amp or I might try the stock speakers for a little while after adding an amp, not sure yet.
1) Amplifier with DSP
Option A: Match UP DSP10. Looks like it has good specs, can keep using all factory speakers. They have a downloadable tune for cars with stock speakers. Slight limitation being you can’t have all inputs connected and add additional options like Hi-def Bluetooth. Maybe that’s not a big deal.
Option B: Helix V Eight. I would lose the center speaker. Are there any benefits though compared to the Match option? They look very similar on paper.
2) Speakers
Option A: Match UP speakers. Noted that the front bass are 4 ohms on these, less power will be provided by the amp
Option B: Focal speakers (the direct-fit ones). Similar to Match but front bass are 2 ohm so they’ll get more power.
Which speakers sound better though?
I look forward to updating the forum as I install whichever system I end up with. Thanks for your help.
What you need:
MATCH UP 10DSP
https://www.audiotec-fischer.de/en/m...fiers/up-10dsp
MATCH PP-MB 1.9BUR CABLE
https://www.audiotec-fischer.de/en/m...l/pp-mb-1.9bur
The 9-channel UPGRADE cable harness PP-MB 1.9BUR enables an easy connection of a MATCH UP 10DSP amplifier with integrated Extension Card MEC ANALOG IN to selected Mercedes vehicles with factory installed Burmester sound systems – model year > 2014 and 9-channel Burmester sound system (13 speakers).
MATCH MEC ANALOG IN CARD
https://www.audiotec-fischer.de/en/m.../mec-analog-in
The MATCH Extension Card ANALOG IN extends MATCH products with two additional analog input channels
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Wow, the Burmester sound has very much improved. Surround ON, Bass = 6, Mid = 4 Treble = 7.
Surround has been reworked and front subs are more controlled and warmer than on the 2015s.
Vocals are perfect sounding, although Mercedes seems to favor putting the singers voice on the left (drivers side) and not center dash. I prefer center dash.
The car seems to just need a trunk subwooofer (for some rear boom) and then balance it with the front woofers, so the proper bass notes go back and forth between them.
The Best of Mercedes & AMG
Im going to try new speakers first. Most of the good subs are out of stock everywhere, I want an Audiofrog GB10D4 but not finding it now. So I’ll just replace the front components and see what happens.
Im going to try new speakers first. Most of the good subs are out of stock everywhere, I want an Audiofrog GB10D4 but not finding it now. So I’ll just replace the front components and see what happens.
I guess it depends on your music device, application, song quality, transmission, etc
I will sample the CD and radio.
I experienced it on the way back to the dealership.
Also, having surround sound on makes it sound worse.
I do love that digital dash though.

I got my baby back! (2015 C300)
Last edited by benzdude; Sep 4, 2021 at 02:50 PM.
On another note, I decided to try different speakers (ordered them before I realized the center channel was an issue). I decided to go with the Focal set. So far, I've just installed the components in the door although I have the front bass as well. Got the components in tonight and even at a low break-in volume they sound really good. Initially, I thought I would try a DSP amp with stock speakers to see how that went. I think that would've been somewhat disappointing. With the Focals, I can hear a lot more detail already (again at low volume). I saw some complaints (after I ordered them of course) from someone that felt the tweeters were way too bright on the factory Burmester amp, but so far I'm not really experiencing that. I'll update the post after break-in when I can turn it up.
To start, I followed the same approach as benzdude suggested before, elevating the mids and treble. I think it's the way to go on the factory amp. It actually tames some harshness and brings out the vocals and other details noticeably.
It's still super hot in AZ, but I hope to get these front bass drivers installed and see what they do. I find the factory speakers pretty punchy and tight in most songs, but I'm curious if these Focals will be different. They're 2 ohms, so they'll pull more power as well. We'll see if that causes boominess there.
On another note, I decided to try different speakers (ordered them before I realized the center channel was an issue). I decided to go with the Focal set. So far, I've just installed the components in the door although I have the front bass as well. Got the components in tonight and even at a low break-in volume they sound really good. Initially, I thought I would try a DSP amp with stock speakers to see how that went. I think that would've been somewhat disappointing. With the Focals, I can hear a lot more detail already (again at low volume). I saw some complaints (after I ordered them of course) from someone that felt the tweeters were way too bright on the factory Burmester amp, but so far I'm not really experiencing that. I'll update the post after break-in when I can turn it up.
To start, I followed the same approach as benzdude suggested before, elevating the mids and treble. I think it's the way to go on the factory amp. It actually tames some harshness and brings out the vocals and other details noticeably.
It's still super hot in AZ, but I hope to get these front bass drivers installed and see what they do. I find the factory speakers pretty punchy and tight in most songs, but I'm curious if these Focals will be different. They're 2 ohms, so they'll pull more power as well. We'll see if that causes boominess there.
When you turn surround off the rear shelf speakers turn off and the center switches phase.
Make sure you test pop any new speakers to verify the polarity/phase is same as oem. If they are not you can make adapter cables to reverse the wires to match oem.
To tame the front subwoofers and make them sound like real subwoofers I did this DSP tweak (below). Now they work nicely with the rear trunk subwoofer.
You can leave the other speakers alone, but the front subwoofers need a DSP tweak to sound 100%
Last edited by benzdude; Sep 4, 2021 at 01:59 PM.
The Focal instruction video only shows the driver's side and doesn't mention unbolting the seat which makes pulling the carpet out much easier. I put some sound deadener sheet on the plastic cover as well, I have heard some resonance at certain frequencies but I'm not sure that's what it is, but couldn't hurt.
The Focal specs say that the speakers are 2 ohm, but I'm not sure that's true. I measured the stock speaker and the Focal and they were both 2.7 ohms (DC measurement), so they're the same as stock. If you don't have Burmester audio though, and only 1 front bass speaker, the kit comes with a cable to connect a second one but it will put it in series. The kit also comes with 2 pigtails though.
After watching other videos about the front bass, I was surprised to see that the factory woofers are actually 8" and it looks like they have a neodymium magnet? I wonder if they improved this or if I had only seen the non-Burmester woofers before. I didn't want to take apart the Focal rear insulation basked as it's bolted on but the magnet feels about twice the diameter of the stock and I believe it's also neodymium. I've only powered it up to test that it works before reinstalling all carpet and trim so far, I'll take it out later for a listen although it will be stock on the driver's side unfortunately.
Last edited by James_H; Sep 4, 2021 at 01:50 PM.
https://www.youtube.com/watch?v=vbHZ1pE_NQ0
The Focal instruction video only shows the driver's side and doesn't mention unbolting the seat which makes pulling the carpet out much easier. I put some sound deadener sheet on the plastic cover as well, I have heard some resonance at certain frequencies but I'm not sure that's what it is, but couldn't hurt.
The Focal specs say that the speakers are 2 ohm, but I'm not sure that's true. I measured the stock speaker and the Focal and they were both 2.7 ohms (DC measurement), so they're the same as stock. If you don't have Burmester audio though, and only 1 front bass speaker, the kit comes with a cable to connect a second one but it will put it in series. The kit also comes with 2 pigtails though.
After watching other videos about the front bass, I was surprised to see that the factory woofers are actually 8" and it looks like they have a neodymium magnet? I wonder if they improved this or if I had only seen the non-Burmester woofers before. I didn't want to take apart the Focal rear insulation basked as it's bolted on but the magnet feels about twice the diameter of the stock and I believe it's also neodymium. I've only powered it up to test that it works before reinstalling all carpet and trim so far, I'll take it out later for a listen although it will be stock on the driver's side unfortunately.

That's $3100 for the FOCAL INSIDE PREMIUM 11.2 Kit.
Last edited by benzdude; Sep 4, 2021 at 02:27 PM.
Thanks for the DSP tip. I still do want to get a DSP amp in the near future, and I’m definitely not a tuning expert. So you just pulled the front subs down at 100Hz? My first guess would be to put like an 80Hz high pass on them and 80Hz low pass on whatever trunk sub I get. I’m assuming that doesn’t blend well then?
Looking at a wire list for the Burmester amp I found in some other post here (probably one of yours?) it looks like there are separate channels in the factory wiring for the front tweeters and midrange? So I could make the front components 3-way active?
I recently installed a Match Up 10DSP amp and am in the midst of the tuning process. It’s starting to sound very good but I have more tuning to do.
The Focal front subs are very nice. I was surprised at how good they sound and how low they play, probably 40 or 45Hz before they really fall off. The factory amp makes them a bit boomy as the factory speakers have different characteristics. They’re 2 ohms so they’ll get more power. I’d recommend these, especially if you can find a scratch’n’dent on Crutchfield or something.
Hopefully I’ll get some good tuning results soon and I’ll post an update. I think I have better than factory sound now but I still need to smooth out some areas.
How difficult are the door speakers to install? I am so bad at door panels that I might have to prep and buy extra clips, inevitably I'd break a few...
How difficult are the door speakers to install? I am so bad at door panels that I might have to prep and buy extra clips, inevitably I'd break a few...
The door panels are actually not bad, I'd say the only tricky part is the window seal positioning when you put them back on. Once you get the hang of it, you can have them on/off in 5m.
How difficult are the door speakers to install? I am so bad at door panels that I might have to prep and buy extra clips, inevitably I'd break a few...
The door panels are actually not bad, I'd say the only tricky part is the window seal positioning when you put them back on. Once you get the hang of it, you can have them on/off in 5m.
To put it back, just put the seal back in the window first, align the clips and snap the seal and panel together at the top, then the other clips.
Also, There is a large square clip near the door pins, at the panel top left edge, you must lift the panel up and over it immediately after loosening the bottom edge clips.
Remove it from the door and attach it to the panel before re installing the panel.
Do you guys know if the base audio have a subwoofer too? I assume it does since I can't imagine those mid ranges pushing any kind of bass and the bass is not terrible.
The midrange is really easy to change, the tweeter is harder to remove but easy to install the new one. The subs are more time-consuming but not hard. There are a couple of YouTube videos that really helped. It probably took an hour each side maybe less.
The bass system comes with one front bass speaker and a cover on the other side. The Focal subwoofer kit and probably the others has the wiring you’d need to add the second woofer but you’ll probably need amplification to drive them.




