[Stream]

Originally Posted by taibanl

This is Correct. Good research!

Edit: if you run new underseat wires you can tap back into the vehicle harness which ultimately goes back to the doors

He uses vehicle harness to connect HU to DSP, new underseat wires to connect amp to underseat, so he need to use new wires to connect amp with midranges in door.

[taibanl]

Originally Posted by Stream

He uses vehicle harness to connect HU to DSP, new underseat wires to connect amp to underseat, so he need to use new wires to connect amp with midranges in door.

Not correct or only partially so. New wires only have to go back to where you unplugged the underseats. The connection is a 4 pol. 2 send (to underseats --> amp). 2 return (to doors)

[JWRockman]

I just installed the Bavsound Stage One speakers in our convertible. Component tweeter and woofer. I purchased the pillar tweeter speaker covers from ECS Tuning. Easy to install after watching the video on Bavsound website. I like the results and that is all that really matters. I would say that the sound difference was a big improvement. Not bad considering I purchased the speakers with plug and play wiring for around $200. There are alot of options out there but I would say I made a good choice.

[birdcatcher]

Crossovers

Everything about crossovers and how to design your own!

http://forum.blu-ray.com/showthread.php?t=77011

[James00_33]

Fun

[Stream]

If I want to retrofit Hi-End (Individual) amplifier instead of L7 amplifier, do I need I-Drive or not?

[DrewWphoto]

My 2007 e92 has the HiFi system and I am wanting to add my 10" subwoofer in the trunk. Does anyone have a wiring diagram of how to wire the High to Low converter to the stock amp in the trunk so I can run the RCA cables to the amp for the subwoofer?

[Stream]

Originally Posted by Stream

If I want to retrofit Hi-End (Individual) amplifier instead of L7 amplifier, do I need I-Drive or not?

Answer: NO.

[Pingu2308]

This is very confusing for me :/ sorry. Can't find what I'm after. Can anybody help me?

After a lot of thought I am putting my alpine head unit into me E90 and have a question or two. Can I put the yellow live line required for the steering controls in one of the fuse holders in the glove box?

Can I upgrade the underwear subs without an amp? I was looking at the

MB Quartz QMW200 or the Rainbow IL-S8F

I do have a vibe active sub I took out my old car that I don't want to put in the boot but will if these will be no good. As I have no clue where to start if I was to amp the under seat subs.

Any help much appreiceated.

[Andruss]

Hi everyone!

Greetings from Estonia.

I'm starding to upgrade my E90 "base" system as well.

To amplify my components (which I'll replace) I'll be using Blaupunkt GTA 470 DSP.

Amp spec

As the name says it has a built in DSP.

So my question to guys is what happends if I input front speaker signal and rear speaker signal from HU to the Blaupunkt GTA 470 DSP rear and front input? Will the front and rear output signals from amp be equal? Since the front and rear speakers get diferent signals from HU.

Andres

[Jcrch]

Hi

I want upgrade my Professional Radio in my 328i 2008 E93. Do you know which is the best option with double din multimedia? And is it possible connect the OEM radio in the baggage apartment and don't miss the functions for programation of modules? Thanks

[JMPyle]

I have a 2010 bmw 328i with the base sound system. How much space is there behind the stock radio? I'd like to stash the DSP I plan on using back there if possible.

[taibanl]

Originally Posted by JMPyle

I have a 2010 bmw 328i with the base sound system. How much space is there behind the stock radio? I'd like to stash the DSP I plan on using back there if possible.

Not that much. Enough for the wires is all

[JMPyle]

Originally Posted by taibanl

Not that much. Enough for the wires is all

Thanks!

That's what I figured, but I haven't been able to find a great pic of the area.

[pengzhang_x1]

My car is a 2014 X1(E84) with base audio(no amp) and CIC HU(iDrive) . I'm look for how I can upgrade the audio system with a aftermarket amp and speakers. Is there a harness that can get the preamp audio signal from HU or the MSOT network?

[JMPyle]

Is there a version of the Technic Harness for people that don't plan on using the stock speaker locations? I'm going to run HLCD's under the dash and JBL 8" Midbasses in the kickpanel area. I plan on keeping the 4" mids in the rear deck and running them off of the stock radio power for now. I have the base audio system and plan on using the balanced miniDSP 2x4 for the front speakers. I'll add a sub soon. I have everything purchased minus the MiniDSP and the subwoofer(s).

[radioshackguy]

Very Descriptive!
I have a 2009 335I with hifi.
Here's my wanted setup:
Rainbow slc's for front mids and tweeters.
Jehnert XE 200R for underseat midbass
Some components for rear deck. Open for suggestions here.
ID12 with infinte baffle for dedicated sub
I'll have the JL XD600/6 for everthing in the cabin of the car.
I need a dedicated mono amp for ID12 (suggestions please dear god)
My two main concerns are how do I hook up two amps to this system. Is it technics harness that does this?
As well should I get ds-8 and where does it took up in this system.

[kaigoss69]

Originally Posted by radioshackguy

Very Descriptive!
I have a 2009 335I with hifi.
Here's my wanted setup:
Rainbow slc's for front mids and tweeters.
Jehnert XE 200R for underseat midbass
Some components for rear deck. Open for suggestions here.
ID12 with infinte baffle for dedicated sub
I'll have the JL XD600/6 for everthing in the cabin of the car.
I need a dedicated mono amp for ID12 (suggestions please dear god)
My two main concerns are how do I hook up two amps to this system. Is it technics harness that does this?
As well should I get ds-8 and where does it took up in this system.

I think you mean the MS-8. I still run this processor and I love it for the auto-tune. However, it is discontinued and lots of people having problems with it. It can give you fantastic results, but be prepared for headaches to get there.

I think there is a very good alternative alvailable today from Bimmertech with their amp/dsp. I come pre-loaded with custom calibration curves for certain speaker systems (mainly stock HiFi and the BSW components).

For complete PnP, ease of install, and virtually guaranteed great sound, I would recommend installing the Bimmertech amp first with the stock speakers. Afterwards, you decide if you need different speakers. If so, BSW front components (not rear!) would be my recommendation, along with the Jehnerts or the new Ghosts from BSW, if you need better mid-bass. You can do this all in stages, which allows you to experience the improvements step by step.

For the sub, ID12 is good in IB, but with limited output. If you can go bigger, do it (ID15 for example). Amp can get signal from Bimmertech unit, and you have a lot of flexibility here. Safe bet is JL XD 600/1 but there are less expensive quality amps out there.

[radioshackguy]

Wow. Kaigoss that was such a quick reply and very informative!!!
Just for clarification. So I still need two amps in this setup.
I want to go ID12 just because I'm not mega huge bass head. I really just want those low notes curves just right and sounding tight.
Technic highly recommended it. But I'll do some research.

[Deep Sea Blue]

Hi, Newbie here. After benefiting from these posts for quite some time, I have finally joined.
Question: can anyone tell me any advantages, or disadvantages, of the JL Audio XD600/6 over the newer /6v2 (since some of both are still available)?
Also, can you you help me get in touch wit Technic, for his Harness?

[ctuna]

The only difference between the new an old xd is the new
one has signal sensing to turn the amp on and off. Turning off
and on is taken care of through a relay on the Technic Harness
so if you get the Technic Harness you covered either way.

http://technicpnp.com/menuDiagrams/d...e90_92_93.html

He use to hang out here and people would PM him I am not sure how good his site works

I never has the L7 in the e90 but I had the HK in an E46 and it
was a lot better than the Hi Fi system in the e90 . The amp is weaker than the stock speakers in the Hi Fi so that is more than 50 percent of the problem . And as you stated bigger speakers in the doors would have helped but some Engineer thought it
would be better to have swoopy doors with useless map holders.
There are Jehnert door boards that replace the the side door and can have up to three or four 6.5 inch speaker but it does
require surgery on the lower panels. The member 6speed coupe
here has a shop in New Jersey and is recognized as one of the best installers on the East coast.
The current popular setup is the Helix 82dsp with a Jehnert set
that fills all the front locations.
I have an xd 600/6 with Morels and Jehnerts its pretty awsome.

http://www.e90post.com/forums/showthread.php?t=1207115


Also its better to start your own thread rather than tack it to the end
of this overused one.

[niko084]

I've got a '06 330xi with the Logic 7 system... I'm fairly happy, I feel it needs a real subwoofer(s) and better tweeters (I think they are a bit harsh).

Here are the few questions if anyone can answer them...

I have at least 1 if not 2 rear speakers that are making not so great sounds occasionally, not sure if I have a bad midrange(s) or if it's resonance. It's fairly light and fairly rare, definitely frequency dependent.

Being I'm not totally pleased with the system-
Has anyone replaced the OEM Logic 7 midrange/tweeters with 4ohm components and run them off the OEM amp?
---I've done this on many Bose systems and been pretty happy.
If it's simply resonance, I may "roll the dice" and try replacing the tweeters along with adding one to the center and add some dampening.

As for the low end... I'm mixed between a sealed box using 2 10" or 12" drivers on around 600 watts (because I have a few amps laying around)

I want to consider an IB with 2 12" subs, however I've only done IB in homes. I'm a little concerned that might be a bit more work than I'm up to.
With IB I'll lose some SPL however I'm more concerned with sound quality, getting very low bass and not losing all my trunk space. (I'm looking at 1.75+cuft per sub for what I'd like)


My IB ideal would be alike the picture, would this work with the back seat up? (I'm thinking not very well, but no experience in automotive IB)
I'd prefer this as I can put grills over the woofers to protect them, gain the SQ of an IB setup, and save trunk space.