[Leucosticte]

Hi guys, it seems that my friend may be parting out his car with the Logic7 system in it and I should be able to get the speakers from it. Are these speakers plug and play on HiFi or do I need new wiring/mounting? It seems that the ideal thing for me is to do is to get an upgraded amp along with the speakers, since the HiFi amp is probably too weak to handle the upgraded speakers.

[Andystobbs]

Different amp, different plug for amp. Fibre optical connection required to amp. Additional speaker channels not catered for by the hifi amp.

[ctuna]

the Hi Fi speakers are 2 ohm the Logic 7 speakers are 4 ohm .
The Logic 7 amp is already seriously under powered.
They will fit but be half the volume. Which ='s no volume.
If this is done with and aftermarket amp some people have claimed good
results but then you would want to change the door speaker to aftermarket to.
Hi Fi does not have optical connections to the amp option 676 is not option 677,688

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673
https://www.bimmerfest.com/threads/e...n-752.1275694/
base system wiring pre/post 3/09
https://www.google.com/url?sa=t&rct=...tDpLJPcGkw_ui_
Base System Guide
http://www.e90post.com/forums/attach...5&d=1493273253

[Leucosticte]

Originally Posted by ctuna

the Hi Fi speakers are 2 ohm the Logic 7 speakers are 4 ohm .
The Logic 7 amp is already seriously under powered.
They will fit but be half the volume. Which ='s no volume.
If this is done with and aftermarket amp some people have claimed good
results but then you would want to change the door speaker to aftermarket to.
Hi Fi does not have optical connections to the amp option 676 is not option 677,688

BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/attach...1&d=1209780865
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://technicpnp.com/menuDiagrams/d...e90_92_93.html
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...3&d=1169133185
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://www.e90post.com/forums/attach...4&d=1278871872
http://www.e90post.com/forums/showthread.php?t=343673
https://www.bimmerfest.com/threads/e...n-752.1275694/
base system wiring pre/post 3/09
https://www.google.com/url?sa=t&rct=...tDpLJPcGkw_ui_
Base System Guide
http://www.e90post.com/forums/attach...5&d=1493273253

Thanks for the info, I think the parts car might have upgraded speakers already, it sounds absolutely amazing, better than the Logic7 that I've heard in another car, once I start taking things out I guess I will find out.

I am thinking of going for the JL Audio XD600/6 as that seems easiest to install.

[ctuna]

If it was me right now I would go for a amp/dsp right now such
as the Helix Audiotec Fisher 86dsp or bmw7 . I have the
JL audio 600/6 is used to be the standard . Nothing wrong with
it but DSP seems to be the new Hotness.

[Hoody007]

Originally Posted by Leucosticte

Hi guys, it seems that my friend may be parting out his car with the Logic7 system in it and I should be able to get the speakers from it. Are these speakers plug and play on HiFi or do I need new wiring/mounting? It seems that the ideal thing for me is to do is to get an upgraded amp along with the speakers, since the HiFi amp is probably too weak to handle the upgraded speakers.

First, are these speakers free? That changes the cost/benefit profile.

I’ve done this, using the logic 7 mids with the HiFi amp, and while they are better, the HiFi amp is definitely the weak point.

I concur with others here - a proper amp (I’m running a PP82 DSP) will go a long way in providing excellent sound. Everything but the woofers (which are 4 ohms, IIRC) should plug in and work fine, though.

If you’re paying for this system, there are much better alternatives. MATCH makes a proper front speaker replacement with discrete crossovers, and the BMW Individual Audio speakers are truly excellent as well - which is what I’m running now.

If these speakers are free, though, and you’re comfortable adding MOST wiring for the amp, VO coding your car, and running new wires for the rear door speakers, I say go for it!

[Postrach]

I know there are many theards and even in this its about 676 -> harman but have a question.

I would like to upgrade Hifi(676) navi cic to Harman Kardon 13 speaker with optic fiber connection how much work is required ?

Price full set of harman vires , speakers , amp is lower then used JL audio 600/6. I also couldn't find any theard where someone upgraded Hifi(676) -> harman.

[Andystobbs]

I just did it in my E91 LCI. Quite a bit of work. Paid £540 for the full kit but had to buy different brackets and grilles for roof speakers.

[Postrach]

Originally Posted by Andystobbs

I just did it in my E91 LCI. Quite a bit of work. Paid £540 for the full kit but had to buy different brackets and grilles for roof speakers.

I will have full kit for ~320£ but how about MOST, cables for tweeters in rear doors ? On the schema connections to hifi / logic looks identical ?

And is it worth sound quality?

[Andystobbs]

Tweeters in rear doors just piggyback from the existing speaker. My kit included all fibre needed, I just added it to the MOST loop in the MOST Junction.

My kit included all wires too. Not sure what you mean by connections being the same.

Lots of base, but haven't used the car since installing. Been doing other jobs at the same time.

[ctuna]

Power Spec for Logic 7 amp that BMW publishes is at 10 percent distortion
The next lowest distortion spec is 55 at 1 percent.
Almost any aftermarket amp in the mid priced range is .1 percent distortion
at rated power.

If you want quality sound you must go aftermarket.
Don't know why but the upgrade to Top Hi Fi is popular in Europe.
It's a different wire Harness for everything .

http://www.e90post.com/forums/showthread.php?t=1144129

chip specs given in the above thread.
under seat chip spec at 70 watts and 10 percent distortion.

[whyzee125]

I'm about to be selling my PP86DSP in favor of a Logic7 retrofit if interested.

[E92x7z]

Originally Posted by whyzee125

I'm about to be selling my PP86DSP in favor of a Logic7 retrofit if interested.

realy you sell Match for this L7 ????????????????? why this is a DOWNGRADE .. mega downgrade

[ctuna]

Ditto

[whyzee125]

Originally Posted by E92x7z

realy you sell Match for this L7 ????????????????? why this is a DOWNGRADE .. mega downgrade

I've owned both. I WAY prefer the Logic7 in every way. The PP86DSP is nice and a huge upgrade over hifi but with the stock speakers it's nowhere close to the L7. I'm sure with a nice set of speakers and a lot of time to set up a custom tune it would be sweet but I'm more of a "set it and forget it" kind of guy.

[ctuna]

But the amps in the 86dsp are way better than the Logic 7 amp .
It will be way better if you can tune it . If you can't that may be the
problem .
You must not be tuning it.
And without aftermarket speakers you are throwing away most of the
advantage because Hi Fi speakers suck.

[whyzee125]

Originally Posted by ctuna

But the amps in the 86dsp are way better than the Logic 7 amp .
It will be way better if you can tune it . If you can't that may be the
problem .
You must not be tuning it.
And without aftermarket speakers you are throwing away most of the
advantage because Hi Fi speakers suck.

That's the appeal to me, I don't know how to tune and don't want to spend countless hours tweaking it. That being said the Logic 7 retrofit seems like a ton of work too but at least I know how to do it.

I may give some upgraded speakers a shot before finalizing my decision.

I've owned hifi, EPS, bimmertech, and Logic7 with BSW speakers and the Logic7 was the only one I was 100% satisfied with. I owned the car for many years and never got bored of the sound.

[ctuna]

Hmm get microphone and some better speakers learn to tune vs
Rip out and rerun and entire Harness and Cut some holes in
doors or rear Deck . Then re porgram for Top Hi Fi for a mediocre
result.

[Hoody007]

Originally Posted by ctuna

Hmm get microphone and some better speakers learn to tune vs
Rip out and rerun and entire Harness and Cut some holes in
doors or rear Deck . Then re porgram for Top Hi Fi for a mediocre
result.

My recollection is that the Logic 7 imagining is quite good, it's the speakers which are the limiting factor.

My experience with the L7 hardware is proof. The aluminum cones are quite harsh, IMHO.

I'll update this post with a .apx file for my setup, which is:

EPS front tweeters and mids
Hifi subs and rear deck speakers (I have an early LCI with the "better" hifi system, so that includes rear tweeters as well).

This is all powered by a PP82DSP amp by Fisher.

Imaging is excellent, as is clarity.

[ctuna]

Hi Fi speakers are not all that good .
Top Hi Fi I don't know.

[Postrach]

I bought the logic7 kit, and will install soon and give my feedback. The question of sound is individual, for me the determinant is rotel ra01 + avance dana 503 home audio, anything that sounds similar or better satisfies me. It is possible that I will change speakers for morel, or amplifier for other but I think that price/quality of logic7 is the best

[ctuna]

Logic 7 amp is not that good if you compare it to most aftermarket amps.

http://www.e90post.com/forums/showthread.php?t=1144129

At rated power the logic 7 has a 10 percent distortion spec.

It's pathetic compared to aftermarket stuff medium or any high end audio.

If you want sound quality you are looking at 1500 US and up.

Audiotec Fisher amp/dsp mosconi am/dsps Mobridge amp dsp's are some of the high
end or middle high end stuff that has been used here lately .

https://www.e90post.com/forums/attac...3&d=1329017429

Morel and Jehnert for speakers but mosconi and Gladen and Audiotec fisher also make
speakers that are middle to high end.