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Open baffle subs? [message #52438] Tue, 12 August 2008 07:36 Go to next message
Bill Epstein is currently offline  Bill Epstein
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Registered: May 2009
Location: Smoky Mts. USA
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I have a pair of these still in their box (currently my coffee table) which eventually I plan to use in 3.5 cu ft sealed boxes with 250 watt plate amps.

Now I'm wondering about open baffles. Qts and Fs should be about right, yes?

How do you figure size of front baffles and wings?

What happens if they're placed at the sides of the room with the wings near or up against the wall?

Or just stick with sealed boxes?



Re: Open baffle subs? [message #52441 is a reply to message #52438] Tue, 12 August 2008 18:49 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
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I'd put them in 10ft3 cabinets tuned to 18Hz.


Re: Not in my house! [message #52442 is a reply to message #52441] Tue, 12 August 2008 19:23 Go to previous messageGo to next message
Bill Epstein is currently offline  Bill Epstein
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Registered: May 2009
Location: Smoky Mts. USA
Illuminati (2nd Degree)
I'm downsizing, remember? LOL!



Re: Not in my house! [message #52444 is a reply to message #52442] Tue, 12 August 2008 23:17 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
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Registered: January 2001
Illuminati (33rd Degree)

Yeah, that's too big. Hmm. I just don't think they'll work well on an open baffle. You could sure try it, but I don't think it's gonna make soup.

Is an in-wall infinite baffle an option? If you're renting, probably not. And I'm not sure it makes good sense for an experiment either. But I do think they would work well in an infinite baffle, essentially a huge box. Trouble with that is two-fold, one is you must cut a hole in a wall or ceiling and the other is you really need to model the room or do some measurements to know where to place them. It would suck to cut holes first and then find out where you placed 'em caused huge room modes.

Might be best to sell 'em and get subwoofers that work well in smaller boxes. If you could get a pair of small subs, you could place them strategically to blend with the bass of the four π's to smooth room modes. That's the ticket, 'cause it gives you a deep bass foundation and smooths room modes at the same time.


Re: Not in my house! [message #52449 is a reply to message #52444] Wed, 13 August 2008 04:49 Go to previous messageGo to next message
Bill Epstein is currently offline  Bill Epstein
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Registered: May 2009
Location: Smoky Mts. USA
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DCS-380 in 4 cu ft sealed box,. i.e., the BatSpeaker boxes with the ports sealed. Not too bad?



Re: Not in my house! [message #52451 is a reply to message #52449] Wed, 13 August 2008 12:02 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18791
Registered: January 2001
Illuminati (33rd Degree)

Looks perfect, Bill. Nice curve for indoor subs.


Re: Open baffle subs? [message #52467 is a reply to message #52438] Sat, 16 August 2008 00:37 Go to previous message
SteveBrown is currently offline  SteveBrown
Messages: 330
Registered: May 2009
Grand Master
Bill,
How about a small (20 to 26") OB and then HIGH pass them at 30hz with your plate amps. I've done that with the 15" IB speakers and it works wonderfully. Think about what that implies before you shoot holes!

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