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Old 3rd December 2005, 10:36 PM   #21
peace brainerd is offline peace brainerd
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Any comment on these?

I'd love to try something like this atop a slim little tower with a downfiring DAYTON SD270-88 10" thirty dollar subwoofer -
or even the eight inch version.

Maybe a couple of these 50 dollar plate amps slapped on their backs?

A promising "poor mans" OB project?

I've never monkeyed with open baffle. This looks like it'd be a fun
place to start.
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Old 9th December 2005, 02:05 AM   #22
mazeroth is offline mazeroth  United States
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Wow, 9 months old and someone remembered me posting that project on the Polk forum. I feel blessed

I've used those buggers OB for the last 9 months and just recently began building sealed enclosures for them. When running them OB they really miss a lot of sound up to (guessing) 300 hz. If they had a larger baffle that wouldn't be an issue, but for these it was. When doing an A/B of these OBs to a sealed version the sealed version brought out what the OBs was missing. I'm no golden ear but I'd guess the sound up to 300 hz was pretty much gone.

Go ahead and throw them into an OB; it shouldn't take very long. See how they sound. If you're not pleased at least you know you tried!
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Old 27th July 2006, 12:13 PM   #23
croat47 is offline croat47  United States
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Default RS125 Bi- or Di-pole?

Sorry to hijack this thread. Nearly complete on a Vifa/Dayton 2-way, and looking for the next project.

Would the Dayton RS125 work well in a dipole (mini Orion, if you will) or bipole ala Planet10's WR/FR125 plus tweeter design?

A sub would cover the <200Hz range...possibly integral and side firing as part of the same cabinet.
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Old 27th July 2006, 03:23 PM   #24
Nortp is offline Nortp  United States
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Join Date: Apr 2006
Location: Phila. Pa.
I used the TB 4" bamboo's for some TV speakers, it took a while for them to loosen up but so far I'm very pleased with them. I've also had the W657SB's, they're ok but the bamboo's are much smoother. They're in ported enclosure tuned to ~ 75 Hz. BSC filter is L = 1.25, R = 5 ohms (had laying around), I'm using them with a sub and they sound pretty nice.
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Old 12th August 2014, 02:10 PM   #25
UBU762 is offline UBU762
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In this context, PPM most likely means mineral-filled polypropylene - done for improving stiffness and damping of the cone. Other manufacturers use this type of material too, but will state so clearly without using the acronym.
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Old 12th August 2014, 03:46 PM   #26
Scottmoose is offline Scottmoose  United Kingdom
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Quite, but this thread has been dead for 8 years.
"'That'll do", comes the cry of the perfectionist down the ages.' James May -The Reassembler
www.wodendesign.com Community sites www.frugal-horn.com http://frugal-phile.com/
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