[Sonnie]

Hi Bob,

Thanks... I now have moved one of the subs from its original front corner position and to the rear, but the roll off below 20hz as pretty much been the same in any location... it doesn't start to dive until about 15hz or so and then it's not straight down, but a good sliding board.

It may be my room... only 1800 cubic feet and sealed up pretty tight. Mine are tuned to 16hz.

The receiver crosses over at 80hz and I cross over the rear sub further with its own crossover at 60hz. This eliminated the obvious standing waves I was getting at about 75-80hz.