azzy_mazzy
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- May 31, 2020
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is this measured in room?we're at 1.4% THD at 20hz@81dB
is this measured in room?we're at 1.4% THD at 20hz@81dB
is this measured in room?
Excepting a true Isobaric design, any dual Driver design will require 2x the internal cabinet volume (same as a 3 Driver design will require 3x Vas if sharing the same cabinet space)... Each Driver's Vas is additive. Dual Opposed and Push-Pull (like the Perlisten designs) are included in this.Why is internal volume necessary with dual opposed drivers? Don’t they cancel each other? Couldn’t this subwoofer have been made even smaller I mean?
Why is internal volume necessary with dual opposed drivers? Don’t they cancel each other? Couldn’t this subwoofer have been made even smaller I mean?
Ok gotcha!
But cancelling inside a sealed box how is that bad? There’s no output there?
Probably a long answer so feel free to point to what basic physics I need to read up on. But how come the dual opposed drivers don’t cancel each other (other than mechanical force)?
I can only say that what is inside the sealed box... the backwave of the Drivers, are immaterial to the output on the outside of the box. The key is that the Drivers be in phase, whether on a single baffle, or dual opposed... or even push-pull. (In this latter example, one driver will have the motor outside the cabinet and thus needs to be wired opposite the conventionally faced driver... but the cone of each driver is still in phase with each other; they excurse outwards together.) There is no cancellation to worry about inside the cabinet.But how come the dual opposed drivers don’t cancel each other
Any updates on the 11Q design?