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      11-13-2014, 06:25 PM   #5
Wongway
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Drives: 328i xdrive
Join Date: Sep 2013
Location: Pittsburgh, PA

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Quote:
Originally Posted by kaigoss69 View Post
What improvement did that make? Mid-bass and/or imaging? You don't know your crossover points?
It's been a couple of weeks since I last made adjustments, so I honestly don't remember my crossover points at the moment.
If I had to make a guess, I think I'm using a
12db/octave slope for the Tweets to Mids.
24db/octave slope for the transition from mids to midbass

Prior to flipping the phase of my 4" mid, I thought I had the sound fairly well centered. But something sounded 'off' for lack of a better term. Once I flipped that passenger mid, I realized what was 'off' was that I was experiencing a lot of cancellation.

The best description I can come up with to illustrate the experience;
Prior to flipping the passenger mid, it was as if all my sound was a series of spotlights aimed towards the center of the dash. A beam from each tweeter, a beam from each mid, etc.

After flipping the passenger mid, it was as if I had floodlights emanating from all my speakers. Suddenly, I was hearing all sorts of things I missed out on. Huge wealth of audio information I either didn't realize was there, or forgot was there.

Now, instead of a more focused sound, it actually got hard to center the image. There was just so much more audio information to sort through. It was as if the speakers sort of disappeared and now the sound was emanating from outside the physical confines of the car. As if they were coming from beyond the side mirrors.

I pretty much was forced to listen to mono source sound (AM radio) to help me recenter my image up front. Once I recentered everything, the vocal presence and overall stage got lifted up just above my dash.
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