Quote:
Originally Posted by Technic
Use a LOC -the XD400/4 accepts up to 5.6V peak. Your OEM HU outputs 8V peak.
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Eh, even so, with the sensitivity cranked all the way down, the speaker volume will be unbearably loud before you hit a level potentially damaging to the amp. The only real reason to use a level shifter is to recover some of the volume control resolution on the head unit, but I find there to be plenty of notches to play with as is.
Quote:
Originally Posted by ctuna
2010's and some early 2011's got the base system.
The worldwide base system with no amp .
There were a lot of people pretty upset about this.
BMW reinstated the Hi Fi as base system around sept of 2010 in 2011 builds
but still a month or two of base system slipped through .
They are easily identifiable by the lack of tweeters in the front doors.
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Interesting.