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<blockquote data-quote="hispls" data-source="post: 8267387" data-attributes="member: 614752">I&#039;ve seen some really crazy things done to try to correct the inherent terrible acoustic environment of a car.&nbsp; &nbsp; As you mentioned, slight adjustment of angle of the tweeters can be dramatic, adjusting crossover points can help (having a channel per driver and processing power is key here).Another thing worth experimenting with is to reverse polarity on tweeters.&nbsp; Either side and both.&nbsp;&nbsp; I&#039;ve seen more than one person reporting success taming some bad nodes with this method.&nbsp;&nbsp; When you&#039;re dealing with wavelengths of only a few inches and drivers separated by a couple feet phase becomes very problematic so running one or both tweeters out of phase may help.You might check out the DIYMA forum.&nbsp; I don&#039;t know if they do any gatherings in SOCAL but we have a New England meetup occasionally and I learned a lot and heard some amazing sound stages by meeting up with guys who have put hours of testing and tweaking into the quest for perfection.At the end of the day, you may well have just hit the wall with how good you&#039;ll be able to get things and need to rely on EQ, but I assure you the kind of stuff that&#039;s high quality and will give you the power that it seems like you&#039;re after isn&#039;t tune on the go type stuff.</blockquote>

[QUOTE="hispls, post: 8267387, member: 614752"] I've seen some really crazy things done to try to correct the inherent terrible acoustic environment of a car. As you mentioned, slight adjustment of angle of the tweeters can be dramatic, adjusting crossover points can help (having a channel per driver and processing power is key here). Another thing worth experimenting with is to reverse polarity on tweeters. Either side and both. I've seen more than one person reporting success taming some bad nodes with this method. When you're dealing with wavelengths of only a few inches and drivers separated by a couple feet phase becomes very problematic so running one or both tweeters out of phase may help. You might check out the DIYMA forum. I don't know if they do any gatherings in SOCAL but we have a New England meetup occasionally and I learned a lot and heard some amazing sound stages by meeting up with guys who have put hours of testing and tweaking into the quest for perfection. At the end of the day, you may well have just hit the wall with how good you'll be able to get things and need to rely on EQ, but I assure you the kind of stuff that's high quality and will give you the power that it seems like you're after isn't tune on the go type stuff. [/QUOTE]

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