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      11-23-2018, 08:10 PM   #1
KevinR
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Add amplifier to 2010 base stereo?

I recently purchased a 2010 135i convertible with the base stereo system. I would like to keep the factory stereo look, so I have been checking out various plug and play options. Unless I am reading things wrong, it appears my only option to add a PnP amp is the BMW/Alpine option.

Does anyone have any other options I should check out?
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      12-24-2018, 11:27 AM   #2
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Quote:
Originally Posted by KevinR View Post
I recently purchased a 2010 135i convertible with the base stereo system. I would like to keep the factory stereo look, so I have been checking out various plug and play options. Unless I am reading things wrong, it appears my only option to add a PnP amp is the BMW/Alpine option.

Does anyone have any other options I should check out?
I am pretty sure you can get an amp from Bimmertech. I've read good things on the forum but haven't heard it personally. Check out their site https://www.bimmer-tech.net/speakers...ifier-for-bmw/

I've no affiliation but I have the 676 Top Hi-Fi and have been considering their upgraded amp for a while now. Looking at their site they make it for the base and Top Hi-Fi. My wife's mini has the HK system and it is FAR superior to the Top Hi-Fi option in my 135i which isn't bad but isn't impressive by any means.
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      09-10-2019, 04:24 PM   #3
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Just getting back to this.

After nearly a year with this E88, I am convinced that the number one thing it needs is amplifier power. However neither BimmerTech nor BavSound offer amplifiers for my car, according to their respective websites.

Both offer complete replacement packages of the speakers and subwoofers. I previously installed a BavSound speaker package in my former E46 coupe and frankly, I was disappointed with it. It certainly didn't blow me away.

Not sure what to do next; I guess get used to driving without hearing the music.
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      09-10-2019, 04:39 PM   #4
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Quote:
Originally Posted by KevinR View Post
Just getting back to this.

After nearly a year with this E88, I am convinced that the number one thing it needs is amplifier power. However neither BimmerTech nor BavSound offer amplifiers for my car, according to their respective websites.

Both offer complete replacement packages of the speakers and subwoofers. I previously installed a BavSound speaker package in my former E46 coupe and frankly, I was disappointed with it. It certainly didn't blow me away.

Not sure what to do next; I guess get used to driving without hearing the music.

Find a good stereo shop in your area. You should be able to find a shop that knows BMW audio systems and how to code the factory head unit to work with an amp. Hopefully they don't use any 3M scotch connectors too. lol I think you just need to talk to some local experts.


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      09-10-2019, 07:57 PM   #5
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Agreed at least to not give up. I do believe the head unit can be coded to a different setup, and then you can use line level outputs (without any built in equalization nonsense) to power an amp and a typical setup afterwards. 8" under the seat, 4's in the door, tweeters in new sail panels, a trunk sub if desired, and so on.

I had some dealings in the past with MusicarNW and was super happy. Explained all my options and eventually sent a totally plug & play kit for amp upgrade and sub. I think the guy went by "VP Electricity" here. I'd suggest sending him a message or calling the shop. Local options may be good too.
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      09-13-2019, 04:31 PM   #6
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I am learning a lot; still don't have a plan.

BavSound offers coaxial speaker replacements. No components for the front, no subs and no amplifier.

Bimmertech offers speakers only, including subs. No amplifier.

MusicarNW does not offer anything for base stereo. They will do custom work in their Oregon shop, but I am in Georgia so it's not an option.

The BMW Alpine kit: the amplifier is for the subwoofers only. The kit replaces the door speakers and adds tweeters to the mirror panels, but these speakers are still driven by the head unit power. The kit does not include replacement subs.

Helix Match, Rainbow, Focal, Rockford Fosgate and MB Quart all offer replacement drivers. None of them offer amplifiers.

Next up is talking with local installers to see if I am comfortable with their knowledge.
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      09-18-2019, 02:14 PM   #7
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Quote:
Originally Posted by KevinR View Post
Does anyone have any other options I should check out?
I really didn't like the factory stereo system in my e82 so I installed a full on 90s style stereo system with two amps, Pioneer DEH-80PRS, Hertz components in the front and a 12 inch CAB / Sundown prototype sub in the rear and it's a bit overkill and can get super loud! Knocked my mirror off the windshield loud! I am actually thinking about selling the 12 inch sub and building a more conservative setup one that isn't super heavy but you do have options. Reach out to some local car audio shops and they should be able to help you.
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      09-18-2019, 03:59 PM   #8
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Dang! You're right, not easy.

MusicarNW, I believe, used to offer kits. Did you contact them directly? Perhaps no longer but it sure looked like it. They sent me everything I needed to make an embarrassingly easy installation but it was an amp, sub, and various harnesses to an HK system, not a base system. Check here:
https://musicarnw.com/e82-1-series-c...ereo-upgrades/

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Originally Posted by FLATBMW View Post
... I installed a full on 90s style stereo system ...
Nice! I am thinking that if a way can be found to get a flat signal output from the Base stereo head unit (or at a minimum compensated for), this is the way to go afterwards. Once you've got a good signal you can do pretty much anything.

Along those lines... Getting out of the 1990's idea and into the 20-teens, There would be a chance to do it without the head deck if you were comfortable with the idea of just connecting a phone or other player to an amp, which is then of course classically connected from there (signal, power, ground, turn-on signal to the amp, and the multitude of speaker wire outputs).
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      09-18-2019, 07:12 PM   #9
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I did check with musicarnw directly via email.

My understanding is the head unit can be coded to provide a flat response (not the default setup for the base radio). I'm still trying to figure out a local installer I trust.
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