Wiring E90 mid, tweets and OE subs Hifi 676

vlv81 · 08-28-2023, 02:35 PM

Hi all

This isn't a SQ or bass build, I originally just wanted to add a trunk sub.

I have searched the forum and found that the tweeters and mids are wired to present a two ohm load to the OE amp and the subs are two ohm by themselves. I have a Technic harness adaptor and amplifier from a friend who never used them that could also power a trunk sub. Only issue is that the amp will do four channels at four ohms and one channel at two ohms. Is it possible to wire the mids, tweets and subs at the OE harness, where the Technic harness plugs in, to run these at four ohms?

Thanks

ctuna · 08-28-2023, 04:58 PM

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

If you have a base system or a Hi Fi system and you add a sub that is what you get.
A base system or Hi Fi system both of which are crap with a sub.

subwoofer threads
http://www.e90post.com/forums/showpo...2&postcount=66
http://www.e90post.com/forums/showth...t=Ultimate+Sub
http://www.e90post.com/forums/showth...ight=subwoofer

08-28-2023, 02:35 PM	#1
vlv81 Registered 0 Rep 4 Posts Drives: BMW E90 Join Date: Jul 2023 Location: new zealand iTrader: (0)	Wiring E90 mid, tweets and OE subs Hifi 676 Hi all This isn't a SQ or bass build, I originally just wanted to add a trunk sub. I have searched the forum and found that the tweeters and mids are wired to present a two ohm load to the OE amp and the subs are two ohm by themselves. I have a Technic harness adaptor and amplifier from a friend who never used them that could also power a trunk sub. Only issue is that the amp will do four channels at four ohms and one channel at two ohms. Is it possible to wire the mids, tweets and subs at the OE harness, where the Technic harness plugs in, to run these at four ohms? Thanks
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08-28-2023, 04:58 PM	#2
ctuna Lieutenant General 1911 Rep 13,104 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	First of all you do not identify your system positively . Technic made 4 different base system harness and one Hi Fi system harness. He also makes and add a sub adapter see his website at Technicpnp.com Read these 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 If you have a base system or a Hi Fi system and you add a sub that is what you get. A base system or Hi Fi system both of which are crap with a sub. subwoofer threads http://www.e90post.com/forums/showpo...2&postcount=66 http://www.e90post.com/forums/showth...t=Ultimate+Sub http://www.e90post.com/forums/showth...ight=subwoofer
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