Quote:
Originally Posted by Danny_Shadow
Many thanks for this info guys. I figured the harness was probably the better solution.
One quick question about the harness - is there a specific one for the F22 HK? or is it a one type fits all? I don't want to order the wrong thing.
I've tried to buy the harness on the technic website, but it doesn't appear to work.
Is there another way to order?
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Some background on Technic: He is a pro car audio installer in the Miami area and was a
very frequent contributor to both Bimmerpost and other BMW forums until last summer, when he ran into some issues regarding his status as a non-commercial forum member. He's kept a low profile ever since, and word is that he's no longer active (though his account is).
The only way to reliably order the ASD harness -- as well as another harness he makes to allow near-plug-and-play installation of an aftermarket amp (and retention of the stock harness in case you want to revert back to OEM) -- is to email him at the address listed on his website. He's responsive to emails.
By the way: He notes that installing the harness decreases bass response slightly on the subs on HK systems (not sure about Hi-Fi) -- enough to be noticeable, but not drastic. Apparently that's yet another benefit to installing the harness: the decrease in bass response is probably related to the use of the ASD module's power stage to augment the power that the subs receive. It's a good thing to get rid of that because basically that means BMW is bi-amping the HK subs with two power stages of unequal power output. That's not a good thing, folks -- and it makes me wonder if that technique is a big part of the source of the high noise floor, not to mention the subs' chronic propensity to simply not work on occasion.