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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36 /7 Z3 (1996-2002)

E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 01-17-2013, 02:19 PM
icucmeuc icucmeuc is offline
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Location: Manchester, NH
 
Join Date: Dec 2012
Posts: 11
Mein Auto: Cadillac CTSV
Z3 Sub box with 1 sub, anyone have one kicking around?

I just pulled the sub box in my 1999 with the HK business system and it is the two sub configuration. I had hoped it would be the 1 sub box so I could drop the kicker in there and be done with it (I really DO NOT want to build a custom box for this).

Anyone out there that has done a custom box and has the original 1 sub box willing to part with it? *Or* does anyone know of a write up (I can't find one) of how to modify the two sub box to accept one 6.5" sub? (not holding my breath on the second one

Thanks very much !
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  #2  
Old 01-18-2013, 06:47 AM
Blacklane Blacklane is offline
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Location: Springfield, Ohio, USA
 
Join Date: Jun 2011
Posts: 870
Mein Auto: 1998 Z3 Roadster
I think you are several years late for this. The single-speaker sub boxes are no longer available and have been bought-up by users making this same retrofit. It's pretty rare to find one now.

There is not much chance of retrofitting a single speaker into the 2-speaker box. The remaining holes are too large and in the wrong places.

You can replace the two speakers. If you're using the stock amp, just use two 5 1/4" 2- or 4-ohm speakers. (The originals were about 3 ohms). If you have an aftermarket sub amp, use two 8-ohm speakers wired in parallel with reversed polarity to create a single 4-ohm channel. (You have to reverse the polarity since they are mounted back-to-back).

Or you can make a sub box. It's not that hard. I made one out of fiberglass:
http://www.bimmerfest.com/forums/sho...d.php?t=605626
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  #3  
Old 01-18-2013, 12:05 PM
icucmeuc icucmeuc is offline
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Location: Manchester, NH
 
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Mein Auto: Cadillac CTSV
Thanks very much for the link It does still look like a lot of work. Hmm... At least it's January and I have some time to think on this.
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  #4  
Old 01-18-2013, 05:53 PM
icucmeuc icucmeuc is offline
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Location: Manchester, NH
 
Join Date: Dec 2012
Posts: 11
Mein Auto: Cadillac CTSV
Ok thinking done. Gonna pop the stock sub back in and leave the car be. Ordered a new head unit, 2 channel amp, front speakers, and an infinity basslink powered sub. Came in under budget of $750 at $660 so I'm happy, and should be easy enough to install everything in an afternoon.

Now to scour around the forum for wire designations so I can just use the stock stuff. I'll be thrilled if I can get away with running minimal wires....
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  #5  
Old 01-19-2013, 04:33 PM
dkindig dkindig is offline
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Location: Murphy, NC
 
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Mein Auto: '01 Z3 3.0i Roadster
Here's what I have on the two different layouts, color codes translated to English, illustrated, and connector pin designations as well.

Not my work, but from a very industrious and helpful member on the other forum. Given the current requirements of the stock speakers/amps, the existing wiring will be fine. All the existing wiring is twisted-pair too so it is resistant to picking up noise. I upgraded my fronts to 85W per DRIVER on my components so I ran 16ga back up front from the new amp. The sub wiring in my '01 was already around 14ga, so I used the existing wiring for a 250W amp (about 8A at full output).
Attached Files
File Type: pdf 1998 BMW Z3 - Harmon Kardon Wiring.pdf (36.7 KB, 132 views)
File Type: pdf 2001 BMW Z3 - Dual Amp Harmon Kardon Wiring.pdf (46.9 KB, 178 views)

Last edited by dkindig; 01-19-2013 at 04:48 PM.
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  #6  
Old 01-20-2013, 12:53 PM
icucmeuc icucmeuc is offline
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Location: Manchester, NH
 
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Mein Auto: Cadillac CTSV
This is great, thanks very much!
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  #7  
Old 01-21-2013, 06:00 PM
DreamnZ DreamnZ is offline
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Location: Orange county
 
Join Date: Jan 2013
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Mein Auto: 1996 BMW Z3
Too bad, I have a sub box from my roadster that I'm not using.
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  #8  
Old 05-25-2013, 03:25 PM
brwndg brwndg is offline
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Location: Virginia
 
Join Date: May 2013
Posts: 15
Mein Auto: 2000 Z3 Roadster 2.3
2000 Z3 in need of a custom Subwoofer box for 6.5"

Just purchased a 2000 Z3 2.3. Has original everything & I want to desperately upgrade the sound system. Seems I will need a custom box to upgrade rear speaker.
Anybody got one they want to sell?
Tim
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  #9  
Old 05-25-2013, 05:55 PM
Blacklane Blacklane is offline
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Location: Springfield, Ohio, USA
 
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Mein Auto: 1998 Z3 Roadster
No. The 2000s had the more desirable 6.5 inch subwoofer. Just replace it with a Kicker ComptVT65.
Of course you probably need all new speakers and an amplifier as well.
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  #10  
Old 05-26-2013, 05:35 AM
brwndg brwndg is offline
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Location: Virginia
 
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Mein Auto: 2000 Z3 Roadster 2.3
Blacklane, got in and did some checkiing on my Z's speakers. Looks like the Subs are dual 5 1/4s.
[IMG][/IMG]


Been looking at just replacing the HU and getting the BSW package. Still will need the rear Subs though. Any suggestions?
Tim
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  #11  
Old 05-26-2013, 06:28 AM
brwndg brwndg is offline
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Location: Virginia
 
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Mein Auto: 2000 Z3 Roadster 2.3
Found this online:

Will this fit to replace Philips Dual 5 1/4 box:
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  #12  
Old 05-26-2013, 10:11 AM
dkindig dkindig is offline
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Location: Murphy, NC
 
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Mein Auto: '01 Z3 3.0i Roadster
Quote:
Originally Posted by brwndg View Post
Found this online:

Will this fit to replace Philips Dual 5 1/4 box:
Yes, it will. You might have to make connector changes, but the enclosure will drop in and use the existing screw locations.
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