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In Reply to: Re: Another OB experiment posted by KCHANG on March 12, 2007 at 19:52:46:
FWIW, I use this 15" infinate baffle from Partsexpress: http://www.partsexpress.com/pe/pshowdetl.cfm?&Partnumber=295-455
I put it on an 18" wide baffle with 6" wings, same baffle my main speaker is mounted on (an EV SP-12B). The crossover is a line level set to 30hz, that goes into a seperate power amp. Given the response of the IB speaker, and the low crossover, it has no problem reaching up to the 150hz or so where the SP-12b falls off, and it give a pretty flat in room response to 30 or 34hz. Sounds great, integrates easily.
Follow Ups:
Hi Steve,I assume that the crossover at 30Hz is a first-order low-pass, and the idea is to use the 6db/oct slope to counteract the dipole roll-off to flatten the bass up to the onset of the dipole roll-off. Correct?
Best,
Works great.
'
See Kurt's note above - he's right on. 1st order low.
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