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Old 25th December 2015, 07:04 AM   #1
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Default Driver enclosure volume and port size help

Im building a portable boombox and im going to be using 2 3.5" drivers in an enclosure. They are dayton ps95-8. Ive been playing around with winisd trying to determine a volume and port size for an enclosure. I came up with a volume of 0.2ft^3 with port of 1.5" wide, 2" long which tunes it to around 87hz. Is this right? Any recommendation would be great.

Link to drivers: Dayton Audio PS95-8 3-1/2" Point Source Full Range Driver 8 Ohm
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Old 25th December 2015, 07:12 PM   #2
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Technically, this driver's Qts is too high to properly load in a BR, instead needing a vented [ML] TL and preferably an expanding one [MLhorn/TQWT] since as you've found out, it ideally needs to be tuned well below Fs. I imagine these will be too big for a boombox though unless you don't mind it being '70s era large.

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Old 25th December 2015, 08:36 PM   #3
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If you read the Parts Express link that you gave, P-E includes the BassBox sealed and vented box sizes with their associated F3 points. An answer to a question in the following user questions and answers section yields port length and diameter details. For the case of two drivers in one box you double the volume.

One of the on-line box calculators would additional answers if you wish to play with the resultant responses and multiple drivers in a box case for your preferences.
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Old 25th December 2015, 09:29 PM   #4
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Thanks for the reply. I see the specs for the enclosure volume but wasnt sure about 2 drivers in the same space and the port size. Thanks again
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Old 25th December 2015, 11:58 PM   #5
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Quote:
Originally Posted by Jim Griffin View Post
For the case of two drivers in one box you double the volume.
Double the vents too for the same tuning...........

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