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Blocking Ports on Ported Speakers

I started playing with putting some pillow cases in the ports of my Pioneer S-1EX speakers. The bass on these is not flabby by any means but I would not say it is super tight either especially in my echoey basement. With the pillow cases in the ports the bass is TIGHT. Too tight actually and very fast. The effect is dramatic. The rest of the frequency range seems to not have been effected. Can anyone recommend where to buy foam ports or similar of varying density to play with? I'm thinking there is a sweet spot with the right density of material whether it be foam or something else.

I know..... I could google it but thought some might have specific recommendations.

Thanks 
mofojo

Showing 1 response by oldhvymec

oldhvymec
5,101 posts
 
OP remember restricting the port works both directions on the driver, when you restrict the port the RETURN to center is slower. That literally puts the voice coil in a forward position while receiving the next signal.

The better solution might be to replace the dampening in the cabinets and add a thicker strand of HEAVY fiberglass. Sometimes the heaver batting and or more of it might really surprise you.. BTW keep the batting AWAY from the drivers.. I use burlap to cover the backs of the drivers..

Burlap can be a good port plug. Maybe Parts Express for foams.

Regards
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