I like hard rock and jazz. The listening room is my basement 18x14 ft that is all drywall with the exception of the wall behind the speakers witch is concrete. My amp is an Adcom GFA 555ii with a denon AVR 4806 as my preamp.The midrange I will be using with the SB Acoustics 12" woofer is a Scanspeak discovery series 4 ohm 5.25" driver. The tweeter is a Scanspeak discovery series 6 ohm 1" soft dome. Based on the feedback, I'm looking at 4.0 cubic ft cabinet sealed. I could always install a 3" tube in the back to see if I like the sound of a vented cabinet. If it sounds bad I can always plug up the port. Thanks for all of the advice.
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Hi,
No it isn't, its about right for sealed. Its too small for vented, if you
try venting it with a low tuned port the response will barely change.
Venting it higher will turn it into a boom box. Vented 6cuft / 18Hz.
rgds, sreten.
I misspoke. I meant to say, "As already covered, 4 cu ft vented is too small for the driver. " A 12" that needed more than 4 cu ft. sealed would be in the trash if I had it. Most good 12s need less than that vented.
Just about every good quality 12" driver at Part Express I put through WinISD worked fine in a vented cab with less than 4 cu ft.
I have two SB Acoustics 10" drivers.
I am considering building a cabinet with a replaceable panel in the bottom so I can try sealed, aperiodic and vented alignments. From what I can remember from playing with WinISD the theile small parameters lent themselves to a cabinet volume that was the same for both the sealed and vented alignments. Is this not the case with your 12" version?
It would be good to be able to try each alignment in your listening room.
Jai
I am considering building a cabinet with a replaceable panel in the bottom so I can try sealed, aperiodic and vented alignments. From what I can remember from playing with WinISD the theile small parameters lent themselves to a cabinet volume that was the same for both the sealed and vented alignments. Is this not the case with your 12" version?
It would be good to be able to try each alignment in your listening room.
Jai
Ported at that volume will bring nothing but worse transient response and port noise..
The pity with these drivers is the high Le.
You can't decently use them above 200hz.
I like the authority of a boomer until 300 hz or more.
Today, most of 12" drivers are subs.
Difficult to find a plain woofer that sise working in a small box.
The pity with these drivers is the high Le.
You can't decently use them above 200hz.
I like the authority of a boomer until 300 hz or more.
Today, most of 12" drivers are subs.
Difficult to find a plain woofer that sise working in a small box.
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And personal preference is often room dependent. A small room may have enough low frequency "cabin gain" that flat response will lead to exaggerated bass. The size and shape of a room may suck out a 60 Hz "boom" a small box creates. Another room may boom at 60 Hz in the listening position. Some people can put the speaker where it sounds best, others are stuck with non optimal positions.
Unless you listen outdoors, the room will have a huge influence on what "sounds best".
Hmmm...depends. If you want a ported design and what target frequency. That will reduce the box. Like in a car environment higher tuning frequency with cabin gain/spl
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