Got my MINI back from Tweeter today.
Very nice looking install … but not sounding good enough yet.
The main issue is a “whine” or “whistle”; a high pitched sound that follows engine revs. I would call it alternator whine, but I expect all new cars to be filtered. General web opinion is a grounding issue. So I have some experimenting ahead.
The other problem I had on the way home was a lack of bass – but the installer had turned on the low cutoff filter. Silly since I do not have any subs. So I defeated the filter, and we will see whether it sounds better tomorrow.
I have temporarily turned down the amp sensitivity, and turned up the HU volume, which should help to reduce the engine noise until I can do something better.
M&I / GBMINI 