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In Reply to: RE: High efficiency + sealed cabinet? posted by hitsware on March 25, 2014 at 17:21:47
hey hits - instead of using my Peerless of India W-12p for S.L.O.B. woofer duty, I think I'll go with this guy's arrangement with a compression driver and waveguide for a two-way sealed box with "some" efficiency
Karlson Evangelist
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Please tell me more, although I am philosophically opposed to paralleling things I like to be open-minded.
that was a close-out 8 inch woofer from Parts Express with a reasonably low free-air resonance and a nominal impedance of 12 ohms so 4 drivers could be paralleled and used with amplifier's happy with a nominal 4 ohm load. The response was pretty good and in his description, the builder used a 3500Hz 12dB/oct. lowpass & 5000Hz 2nd order high pass to the waveguide
fwiw - the woofer specs
http://www.parts-express.com/peerless-india-w8-12t-12p-8-paper-cone-woofer-12-ohm--299-068
Karlson Evangelist
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