Sub amp is Dayton Audio SA1000, 950W @ 4 ohm, 1/3rd duty cycle, class AB, Carver down-tracking PS, ca. 29#, in production since ca. 1995 with only minor series change: added HP main speaker filter, subsonic filter, switchable 20 Hz EQ, rest of the amp unchanged.
Two SA1000 power a 4 sub array, two subs per L/R side. SA1000 are in Dr. David Griesinger's phase quadrature tuning, the L and R sides separated by 90 degrees to further maximize the array's natural mode damping.
The two front subs also serve as main speaker stands; each side wall has a sub.
To minimize SA1000 output cable length I sited each SA1000 vertically only an inch from a cabinet housing a reverberant field accessory speaker driver, an Eminence coincident 10" with compression driver (separate xo.) Imaginary V-lines from the sweet spot pass through the center of the Eminence 10" directly behind the sub/stand/main speaker.
The SA1000's horizontal face plate and the baffle (22 degrees from horizontal) housing the Eminence 10" are both 16" above the floor.
Overall performance improved a lot, including the bass, vs. my prior SA1000 siting with longer output cables.
How would you define perceived risk (if any) Re. SA1000 proximity to main speakers or 10" sub drivers? The Q presumes no speaker driver, esp. the 10" sub, is on 90 degree axis with SA1000.
Two SA1000 power a 4 sub array, two subs per L/R side. SA1000 are in Dr. David Griesinger's phase quadrature tuning, the L and R sides separated by 90 degrees to further maximize the array's natural mode damping.
The two front subs also serve as main speaker stands; each side wall has a sub.
To minimize SA1000 output cable length I sited each SA1000 vertically only an inch from a cabinet housing a reverberant field accessory speaker driver, an Eminence coincident 10" with compression driver (separate xo.) Imaginary V-lines from the sweet spot pass through the center of the Eminence 10" directly behind the sub/stand/main speaker.
The SA1000's horizontal face plate and the baffle (22 degrees from horizontal) housing the Eminence 10" are both 16" above the floor.
Overall performance improved a lot, including the bass, vs. my prior SA1000 siting with longer output cables.
How would you define perceived risk (if any) Re. SA1000 proximity to main speakers or 10" sub drivers? The Q presumes no speaker driver, esp. the 10" sub, is on 90 degree axis with SA1000.
I think there are too many unknowns to give a definitive answer to your question. I wouldn't expect a problem, but I wouldn't be surprised if I were wrong. IMHO you can have a couple of feet of serious cable in star quad configuration (e.g. 4 x 12AWG) between the amplifier and driver with no downside to give some freedom for amplifier placement. BTW I worked with David Griesinger on a project in Australia in 1998 - he's super knowledgeable on creation of sound fields for spacial perception. I'll have to read up on his theory on subwoofer phase quadrature tuning.