Rich, the subs are dialed in more perfect than yesterday. Volumes are lower. Here's what I did.

Yesterday I was using the Onk's tone generator and my SPL meter. Today, I decided to use the tone generator with the Onk mic. With the Onk mic, I found that the summed SPL was 79dB - 4dB too hot. I adjusted each of my three subs to 69dB and voila! I got a sum total of 75dB.

I walked around the room and the bass was nice and smooth like yesterday. The real test though was music. I find some songs to be good at the calibrated setting. Others I have to bump up by as much as 1.5dB.

I am very satisfied with the sound from the single 800 and twin 500s. Of course all this will have to be re-calibrated again once the actives are in the man-cave. That should be interesting because I was planning on feeding the twin 500s directly from the DSP boxes. There is no distance setting on the DSP boxes however so I don't know how I'm going to time-align the 500s. Physical location may be an option.

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