Hi John,

At -20 on my Denon and a 50Hz tone, I measured 1.12VA with a scope attached. Interestingly enough, the SPL at this gain was 89.5dB with both 80s on at an 8 foot distance.

But you know now that I think about your comment, the power must be far less than a watt and the reason is because the pink noise is recorded at -10dB whereas the 50Hz tone was recorded at 0dB. -10dB means a tenth of the power so you're right...that's a tenth of a watt. Nice catch!

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated