Peerless SLS 10" in ported, 30 ltr subwoofer

[Svante]

Not to nitpik, but efficiency compares acoustic power out relative to electrical power in and is not measured in dBs but rather is stated as a percentage figure.

I use dB all the time and like it. It is very useful.

 

[sreten]

Hmm... Going from two drivers side-by-side in the volume 4*V to two drivers, isobaric in the volume V, the both the efficiency and max SPL should drop by 6 dB.

I seem to be having problems with my thinking in this area,
probably due to not being contradicted in previous threads.

The old acoustic coupling guff again, which I seem to have
misunderstood, and haven't yet adjusted reference points.

You are of course correct.

sreten.

 

[Svante]

The old acoustic coupling guff again, which I seem to have
misunderstood, and haven't yet adjusted reference points.

sreten.

Yeah, tough stuff... But at least you don't take 10 posts to convince.