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Hi guys!! I tried the passive radiators and got deeper bass response and more headroom from the box. You can get them cheap on Ebay. I used 3 inch radiators. Here is a picture. Thanks for your support and good coments!!
Yes, the side vents are actual ports. I really played it by ear and hoped to get more bass because of that but not much. I plan to try some passive radiators on the back of each woofer to get deeper bass. Let you guys know how it turns out. Sorry for the huge delay. I was away from the site for a long time.
Marine Head Blaster
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