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Other than keeping it all original for resale, I think the DSP system is outdated and easily outperformed by current technology. It is kind of a pain in the *** to remove and rewire but it’s worth it 20 times over. The biggest issues are getting power for an aftermarket head unit and running rca/antennae cable to it from the rear. Not rocket science and doable with the wealth of info here. If you’re considering ditching it I highly recommend it!
I just replaced the speakers and the Nokia subs with some Rockfords and the sound is great. Replacing the 2 inch mid range from the front doors were a pita but they really don’t need to be changed. It doesn’t sound better than if you rewired a whole new system with signal processors and powerful amps but the sound output is tremendous. It sounds better than my bang and olufson system in my A4 greatly. The total cost was less than $300 but I did get a great deal on the hertz deici components. Just my $0.02
 

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No argument you will always get the best sound with a proper aftermarket setup. But I can't gelp but get sort of annoyed when people buy old cars like these with the original speakers then complain that the sound is bad. Well of course the sound is going to be crap! Even the "newest" E39's are 17 years old, so the speakers have out lived their use. My car still had its original M-audio speakers when I got it. Front ones were blown, rears weren't far behind. The subs worked, but not by much. It sounded god awful.

Was going to eventually gut it all and go aftermarket. But then a co-workers dad offered to sell me brand new Bavsound Stage 1 kit and new M-subs that never got installed on his wrecked 540i all for $400 which was way too good of a deal to pass up! Took him up on it, and I haven't regretted it since.

If you want to go aftermarket, nothing wrong with that at all. But for people who don't want to go crazy or on some sort of a budget, just buy new high quality speakers. Doesn't have to be some ridiculous expensive stuff like Focals. I mean don't get me wrong Focals are amazing but are stupidly overpriced. Holiday27 did an excellent job of finding something that gave him a big leap in sound quality.

Now of course when my original amp does crap out (which it will), then I will replace it with a proper aftermarket unit. Heck even OEM speakers are supposedly better with an aftermarket amp. I know BMW still sells brand new DSP amps. But there's no way in hell I'm going to pay $1300 for one, then another $100 just to have it "coded" to the car. And thats if they even do that anymore?

Sent from Uranus with Love.
 

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What nfs021 said is totally on point. The only thing I will say is if you aren’t getting the m-audio subs brand new at a great price save your money and buy 2 dual voice coil 10” subs and install them instead. No extra wiring and if you mount it from below it’s less work than what I did. It’ll also sound way better. Keep in mind a used m-audio sub is at best 17 years old.
 

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Just starting my upgrade project. Here's what I'm going with:

Head unit - Alpine ILX-650 with Dennis Cooper's NXG-39 mounting bracket. Looks OEM.
Amps - Alpine KTA450 which mounts to the back of the HU and will drive the front speakers.
Alpine S-series 4 channel to drive the rear speakers.
Speakers - Boston Acoustics 6.53 system. 4.5' mids in the doors and 1" tweeters. 6.5" woofers in rear deck

It comes with it's own passive crossover system which I think sounds better than electronic crossovers from the amps.

Alpine 5.25 in the rear.

Alpine back up camera
PAC steering wheel controls
Sirius XM module
All new speaker wires. The OEM wires won't do the job IMO.

I modified the sub baffles in the rear and will seal with with Dynamat tape and stuffing for the interior.

I've had the BA system in 2 other cars and believe it or not, the 6.5 woofers sound just as good as (1) 10" woofer. We'll see how it sounds when it's done.
 

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I did a upgrade on a past e39 that I owned with stock DSP - Memphis speakers and a mono amp running the Nokia box with stuffing. It sounded pretty darn good.
This is my all I have for a stereo now - maybe the most minimalist one could go.
936842
 

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I just slapped a grom unit in, hands free cell, full steering wheel control, waze or maps for guidance, Siri at the push of a steering wheel button, Apple Music all day, so simple, and not even a crackhead smashes a window for a stock head unit. I like my mods unseen (but that’s just me, a great system is really nice to have).

I know I’d miss the look of utter amazement/confusion on people’s faces as the screen slowly rotates open to reveal A TAPE DECK.
 

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No argument you will always get the best sound with a proper aftermarket setup. But I can't gelp but get sort of annoyed when people buy old cars like these with the original speakers then complain that the sound is bad. Well of course the sound is going to be crap! Even the "newest" E39's are 17 years old, so the speakers have out lived their use. My car still had its original M-audio speakers when I got it. Front ones were blown, rears weren't far behind. The subs worked, but not by much. It sounded god awful.

Was going to eventually gut it all and go aftermarket. But then a co-workers dad offered to sell me brand new Bavsound Stage 1 kit and new M-subs that never got installed on his wrecked 540i all for $400 which was way too good of a deal to pass up! Took him up on it, and I haven't regretted it since.

If you want to go aftermarket, nothing wrong with that at all. But for people who don't want to go crazy or on some sort of a budget, just buy new high quality speakers. Doesn't have to be some ridiculous expensive stuff like Focals. I mean don't get me wrong Focals are amazing but are stupidly overpriced. Holiday27 did an excellent job of finding something that gave him a big leap in sound quality.

Now of course when my original amp does crap out (which it will), then I will replace it with a proper aftermarket unit. Heck even OEM speakers are supposedly better with an aftermarket amp. I know BMW still sells brand new DSP amps. But there's no way in hell I'm going to pay $1300 for one, then another $100 just to have it "coded" to the car. And thats if they even do that anymore?

Sent from Uranus with Love.
How is the Bavsound relative to the OEM M-Audio speakers you had? I'm thinking about doing the same - don't want to touch the head unit and rewiring would be a nightmare. I think that leaves basically only the Bavsound option right? Is there a way to keep the OEM headunit but replace the DSP amplifier without rewiring?

My only thing is that I'm worried that the Bavsounds won't be any better.
 

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How is the Bavsound relative to the OEM M-Audio speakers you had? I'm thinking about doing the same - don't want to touch the head unit and rewiring would be a nightmare. I think that leaves basically only the Bavsound option right? Is there a way to keep the OEM headunit but replace the DSP amplifier without rewiring?

My only thing is that I'm worried that the Bavsounds won't be any better.
Hi, the Bavsound/BSW setup front speaker upgrade will change the woofer and the tweeter only, the oem midrange driver remains as is. The BSW's will make the 'best' of the OEM DSP audio setup and the difference will be significant. Will it be $400 worth of improvement? some will say it is, others will say no. I'm in the latter segment, if im going to spend $400 on a set of front speakers, I want a fantastic increase in Sound Quality, the ability of providing awesome soundstaging and imaging. The OEM DSP setup by it's inherent design and peformance level doesn't provide for that level of quality.

There's no way to remove just the DSP amp and have everything else remain in place and work as is, the setup is modular and each module is required to be present and working.

This thread is a few years old now and the underlying reasons still remain and by and large, many owners will still wish/want to retain the OEM Audio and DSP setup. To get a lot better sound quality and performance out of this setup, the spend level will need to increase sunbstantially. I See you've posted on the bimmerforums website too, so I'll reference this thread there.

To keep the OEM setup there's two routes you can take.
1. Use a Sound Processor. That will take in all the outputs from the OEM DSP amp and very cleverly remove the factory pre-set EQ curve, boost the output voltage and no matter how hard you drive the OEM DSP amplifier, it'll not pass on the distortion/clipping that will occur. That 'clean' output you then connect to your choice of amplifier and much better quality and performing speakers.

2. Follow forum member Douglas Baker's thread on removing the DSP amp and doing some wiring workarounds and then using some external crossovers etc to then be able to put in a modest aftermarket amplifier to drive the OEM DSP speakers, which you'd then perhaps upgrade to good quality 2 way components from the likes of Focal/Hertz/HAT/DLS/ and each of their entry to mid level ranges coming in less than the BSW speakers.

So, for the 'simplest' upgrade for you would be to buy the BSW's and install and accept the level of performance increase they offer. You may well be happy enough with the result. If you then feel after a little time, the performance isn't as good as you'd wanted/hoped, then look to the two options above. The other alternative is to remove the OEM setup and replace with all aftermarket products which will, when installed properly and well, sound a lot better than if you'd kept the OEM modules. More owners have gone this last route and since this thread has been going, I did design, develop and now manufacture an OEM look fascia so you can still have the OEM looks in the dash along with a high quality head unit thus giving you a fundamental much more capable and performing audio setup in your car - search out Haywood's post in the main forum for instance. You could keep all the oem modules safe and if/when you decide to sell the car, just remove the aftermarket products and plug back in the oem modules.

Cheers, Dennis!
 

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Hi, the Bavsound/BSW setup front speaker upgrade will change the woofer and the tweeter only, the oem midrange driver remains as is. The BSW's will make the 'best' of the OEM DSP audio setup and the difference will be significant. Will it be $400 worth of improvement? some will say it is, others will say no. I'm in the latter segment, if im going to spend $400 on a set of front speakers, I want a fantastic increase in Sound Quality, the ability of providing awesome soundstaging and imaging. The OEM DSP setup by it's inherent design and peformance level doesn't provide for that level of quality.

There's no way to remove just the DSP amp and have everything else remain in place and work as is, the setup is modular and each module is required to be present and working.

This thread is a few years old now and the underlying reasons still remain and by and large, many owners will still wish/want to retain the OEM Audio and DSP setup. To get a lot better sound quality and performance out of this setup, the spend level will need to increase sunbstantially. I See you've posted on the bimmerforums website too, so I'll reference this thread there.

To keep the OEM setup there's two routes you can take.
1. Use a Sound Processor. That will take in all the outputs from the OEM DSP amp and very cleverly remove the factory pre-set EQ curve, boost the output voltage and no matter how hard you drive the OEM DSP amplifier, it'll not pass on the distortion/clipping that will occur. That 'clean' output you then connect to your choice of amplifier and much better quality and performing speakers.

2. Follow forum member Douglas Baker's thread on removing the DSP amp and doing some wiring workarounds and then using some external crossovers etc to then be able to put in a modest aftermarket amplifier to drive the OEM DSP speakers, which you'd then perhaps upgrade to good quality 2 way components from the likes of Focal/Hertz/HAT/DLS/ and each of their entry to mid level ranges coming in less than the BSW speakers.

So, for the 'simplest' upgrade for you would be to buy the BSW's and install and accept the level of performance increase they offer. You may well be happy enough with the result. If you then feel after a little time, the performance isn't as good as you'd wanted/hoped, then look to the two options above. The other alternative is to remove the OEM setup and replace with all aftermarket products which will, when installed properly and well, sound a lot better than if you'd kept the OEM modules. More owners have gone this last route and since this thread has been going, I did design, develop and now manufacture an OEM look fascia so you can still have the OEM looks in the dash along with a high quality head unit thus giving you a fundamental much more capable and performing audio setup in your car - search out Haywood's post in the main forum for instance. You could keep all the oem modules safe and if/when you decide to sell the car, just remove the aftermarket products and plug back in the oem modules.

Cheers, Dennis!
Thank you Dennis, that is very comprehensive. I ultimately bought the Bavsound as first stab at improvement before possibly upgrading more invasively. It's backordered until August unfortunately, but eager to get it in.
 
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