Methinks you're going to find the Q is far to low to make this work. You'll need a woofer that goes fairly high to take over. Been there.
Film at Eleven.
Last edited by cradeldorf; November 15th, 2012 at 04:14 AM.
Methinks you're going to find the Q is far to low to make this work. You'll need a woofer that goes fairly high to take over. Been there.
Nothing like a great big pair of speakers to make your day.
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The curved baffle top looks cool, but it's a bad idea sonically. It puts the entire top edge at the same distance from the driver and that's not something you want to do.
OB works for high Qt speaks like the Carver Amazing and electrostats, but without a helper woofer or dramatic eq of some kind, I just don't see how a 604 could give satisfying bass performance this way.
Dorf, didn't you already try the open baffle failed experiment?
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It won't. You have to trade away midrange to get it to balance the bass. There is a good reason they put woofers in boxes, to minimize the bass losses. On an open baffle you have to use "EQ", either active or passive, to restore the tonal balance.Originally Posted by David Yost
No pics of the open baffle but if I read you correctly you might want to try something like the "holey backs" seen here. That really reduces the boxy sound and still preserves a lot of the bass.
Nothing like a great big pair of speakers to make your day.
[url]http://s286.photobucket.com/albums/ll111/calweldon/?start=all[/url]
[url]www.calweldonconsulting.ca[/url]
I have 605Bs in 21" square baffles. Sure enough, they don't go much below 60hz or so.
But above that they are marvelous. I'm building H baffles (open backed boxes really) for
18" woofers that will be driven with equalization to fill that in. Inspired by JB's OBs
that Pano used at LASF in 2010 (i heard them in 2008), I expect to end up in the same
neighborhood. I strongly recommend a quick and dirty test, at least. I doubt you will
be disappointed.
Skip Pack
Last edited by Skip Pack; January 25th, 2012 at 12:58 PM. Reason: grammatical errir
Skip Pack
48" tall puts your driver at a good hight. It also avoids having all baffle sides the same dimension, however much that matters.
How about a 1/4 sheet of ply? 24x48" with asymmetrical wings. Smaller footprint than your 36" baffle.
Hi All,
Yes the OB really reduces the boxy sound and still preserves a lot of the bass.My 604D in OB are capable to reproduce good bass till 120 hz. Below two khorn reproduce from 40 to 120 hz. You can see at :
www.estroarmonico.com/Altec_2.JPG
www.estroarmonico.com/Altec_3.JPG
www.estroarmonico.com/Altec_4.3.JPG
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