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What to port to?? (1 Viewer)

Stephen Matthew

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Dec 20, 2001
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I am building some cabinets for a 6.5"midwoofer, 1" tweeter setup, i am actualy using car audio speakers due to the cost.. and my amp doesnt mind 4 ohms.. i am planning on using them either for rear surround or as a pair of bookshelf speakers for another room. I have already built the cabinets, but i am not sure if i shoudl port them or run them sealed.. I also dont have the t/s specs for them.. looking for an idea as to what freq to port them to. the rooms it may be in are pretty small, about 200ft^2 max... i cant really tune much lower than about 60hz without running into some port noise however.. should i just stick with sealed??

thanks for any help you can give
 

John Garcia

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Might want to ask in the DIY forum.

Without the specs for the midrange, it will be quite difficult to tune the enclosure to the right frequency. If they are not quality speakers, it probably won't matter a whole lot anyway.

Sealed, you will lose some efficiency and low end extension, but gain some accuracy, and don't have to worry quite as much about tuning.
 

Stephen Matthew

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Dec 20, 2001
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thanks, ill try in that forum. They are some pretty good speakers, tough to compare to home audio i guess, but fairly good by car audio standards.. no match for my a/d/s 346's, but im not willing to spend that much and my ht amp wont take 2 ohms.... just got them together sealed and they sound pretty decent, but id like to get every bit out of them i can.

thanks!
 

Dave Poehlman

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Steven I can't really make an accurate decision without the t/s parameters and your enclosure size.

However, I can tell you that I personally feel that smaller drivers (6.5" and smaller) should be ported. Mostly because you are already limited in bass extension due to the small size.. so you would want to get as much bass out of them as possible.
 

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