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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > E92 Base Audio newest aftermarket upgrade help



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      09-19-2019, 03:41 PM   #1
E92_James
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E92 Base Audio newest aftermarket upgrade help

I've been searching and i've come to the conclusion i don't think individual audio retrofit is worth it, alpine hifi sounds awful right now in terms of bass and clarity when played loudly and i want something else.

Anyone know any good plug and play solutions? I'm trying to figure out, Technic 2/4 harness so it just plugs into the under seat subs like the alpine hifi did.

I'm not sure what speakers and tweeters that are plug and play for the car besides MB Quart. I definitely want a good signal sensing dsp amp or something. Earthquake SWS8 underseat subs.

If anybody has any good plug and play solutions that fit my budget of like $500-700 and sounds better than the oem HK or alpine hifi id appreciate it.

All the forum posts are old and all the equipment everyone recommends is old/outdated/discontinued. Also don't wanna run anything besides 1 amp, i wanna make this simple but really good.
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      09-19-2019, 05:05 PM   #2
ctuna
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Technic has three levels of Base system harness depending
on how far you want to go.

Bimmertech and Bavsound have plug and play setups using
the Helix 86dsp and BMW7 dsp amps respectively.

I know bimmertech had a base system plug and play kit not
sure about bavsound. Includes harness.

Pretty hard to do absolute easy plug and play with a base system
because you need harness to the trunk and maybe coding to Hi Fi.
I believe this is included in the Bimmertech kit.
You should also at least get a new set of speakers for everything
up front.
There are lots of plug and play speaker sets for the front's now.
Jehnert , Helix Match ,Rockford Fosgate, Audio Systems see audio build
thread speaker list.

I would go with the Helix Match speaker sets for the front's
Next level would be Jehnert xe 200's for the underseats
and Morels for the doors.

Price wise 700 would be low for kit that probably would only barely
cover the amp/dsp and then another 500 to 700 for a set of quality
front speakers.

Last edited by ctuna; 09-19-2019 at 05:12 PM..
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      09-30-2019, 06:23 PM   #3
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I've recently decided on using The Audison Prima line, still waiting on a couple of pieces before I tackle the instal. It's plug & play and they have all their own harnesses .

https://www.audison.eu

There was also the Boxmore packs from Gladden

https://www.boxmore.de/en/
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      10-02-2019, 02:29 AM   #4
ctuna
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the audison dsp/amps tend to be underpowered.

I would go with the Mosconi Gladen Combo.

audison ap8.9

Load Imp. 8 Channels 4 Channels (bridge)
4 Ohm 35 W x 8 130 W x 4
2 Ohm 65 W x 8

Even the lowest rated Mosconi is 60 watts a channel at 4 ohms.

Last edited by ctuna; 10-02-2019 at 02:41 AM..
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      10-02-2019, 06:07 AM   #5
eas66
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you're correct the older 8.9bit was only rated for 35*8, however the newer Forza 8.9bit is 85*8 into 4ohm. It's also expensive, but sure.

Also, i think the Mosconi you mention is a 4 channel (not 8), the equivalent Audison 4 channel (with dsp) is 75 *4 into 4ohm

Last edited by eas66; 10-02-2019 at 06:33 AM..
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      10-02-2019, 06:50 AM   #6
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But you donīt need 8 channels, you can hook up fronts (doors/mirrors) to 1-2 and drive under-seats with 3-4 channels... hence 4 channel amp is right... unless you want to go active and run high/mids/bas/sub separately = 7/8 channel w DSP
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      10-02-2019, 11:20 AM   #7
eas66
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I think the value in the 8 channel is bridging 4 of the channels to drive the underseats, and still having 2 channels for the rears.

Having said that, I recently purchased the 4 channel Audison amp I mentioned above to do exactly as you said, key being I've swapped out the 4ohm underseats with 2ohms.
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      10-02-2019, 11:28 AM   #8
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mosconi has a variety of 4 to 8 channel amps the Boxmore guys
at that site don't mention which one they use.

Last edited by ctuna; 10-02-2019 at 10:09 PM..
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