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Old 08-17-2015, 07:00 PM   #1  
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Default Speaker Question

I am in the process of redoing my 69 Sportroof Mustang. I am putting in a Classic Auto Air kit and do not need the return vents. When I removed these I had plenty of room and got a great deal on some QS 6 3/4 Kicker Component Speakers for the front, and some 6 1/2's for the rear. I am putting Dynamat in from the firewall back but came across these:


I was wondering if it was worth buying these to put the speakers in to further diminish vibrations.

The mid speakers are 2 1/2" in depth.

My question is two fold

1. Would it be worth getting them to see improvement?

2. Would a 3" depth be deep enough to help amplify the sound?

Thanks very much for your help.
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Old 08-18-2015, 09:08 AM   #2  
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don't bother. if they're just PE foam, they're far too light to damp anything. The only thing they're worthwhile for is keeping water off of the speaker. plus, they form a crappy enclosure behind the speaker and will alter its performance. most if not all door speakers are designed as "infinite baffle" and aren't intended to be used in a box.
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Old 08-18-2015, 08:50 PM   #3  
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Thank you. That is what I thought but it has been awhile since I had a nice aftermarket system in a car.
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