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I have a set of Boston Acoustics 6.5 Proseries components in my 03 9-3SS ARC. Intially they were installed with the tweeter in the dash and the midbass in the doors. This sounded better than stocks but not as good as I expected. The tweeter drowned the mid-bass because of the windshield reverberation and the sound was extremely clear but was lacking the mid-bass punch.
So I contacted BA and the technical rep suggest installing the tweeter coaxially on the 6.5" midbass speaker and installing an imaging set of tweeter on the dash with their own ambient cross-over (8Khz and higher) to raise the soundstage.
The results: phenominal. The imaging is steller and the sound is so clear and coherent. The mid-bass punch is clean and the highs and lows seem very integrated compared to before.
In fact I don't have the center speaker hooked up (now a home for my XM module antenna), and the soundstage is quite centered and better than the stock configuration.
I believe you can do this for MB Quarts too, but found the Bostons to be more neutral. By far, the best configuration are ones where the tweeter, midrange and midbass are next to each other. That is why custom kickerpanels are considered to be the best configuration for sound. Even the stock configuration with the mid-range in the dash is not optimal although it is better than having just a tweeter there.
Vivek
03 9-3 ARC with Sport Suspension
Custom stereo install
Alpine 9813 CD player (gave up 6-CD changer) with XM module (under pass. front seat)
JL Audio 5 channel amp with 100W RMS to fronts, 25 to rears, 250 to subwoofer (mounted on back of rear seat)
Boston Acoustics ProSeries 6.5 components mounted coaxially
Boston Acoustics 1" imaging tweeters with ambient cross-overs
Boston Acoustics NX-97 two-way rears
10" JL Audio 3v2 sub with custom enclosure in right side opening of trunk (removable)
posted by 216.112.146...
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