And I would have guessed only 3 dB instead of 6, but again- I'm not sure why co-located subs give an increase of 6 dB.

If your amp supports 4 Ohm loads, then I think you'll get the same power out of one amp with the M3's in parallel, versus separate amps each driving a single M3. Either way the power doubles, yielding 3 dB.

Of course I've been wrong many times. I'm thankful for any clarification so I can learn more. That's the fun part of this hobby, learning something new


-Dave

M80s VP150 QS8s EP500s
ravenmanor.com/cinema/