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In Reply to: RE: Sealed Box, clam-shelled bass-drivers question posted by hahax@verizon.net on August 13, 2016 at 18:33:58
So even with an Rb enclosure VAS halves with two face-to-face (OOP) drivers!
So I have the option of adding a passive radiator to each sub, if I find that the Eq required down at ELF is running us out of power.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
Follow Ups:
Is what you mean. Yes as the other reply said only half the box volume is required for the two for the same performance as one in a box twice as big. Don't forget to wire the drivers out of phase too. We used that design in car audio when the customer wanted a small box.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
I will be powering each driver individually with one channel each from a stereo power amp, and yes, out of phase. This I believe reduces the demands on each amp's power supply, possibly raising headroom.
There may eventually be 5 subs. The two sealed ones mentioned, a reflex box I've had for a long time, and two TLs in the 'front' wall's corners with KEF B139s. I've yet to build the TLs!
The idea being to get as smooth a bass response as possible, before applying Eq to both channels. I'll be using 1/3rd octave Eq after the low-pass filters. I hope to be able to do 16Hz pedal reed notes.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
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