Jeff:

What are the crossover settings in effect here? Based on the graph, it looks like the crossover is 35Hz still.

See how the "Speakers_LF" line drops down sharply shortly after 35Hz.

If one sums "Speakers_LF" and "Sub_LF" the response (output in dB SPL) looks about level based on the graph you're showing us.

Cheers,

Surround Music Fan/Computer Geek/Curmudgeon in training.
---
861v4, HD621, Panasonic BD-P55K, Toshiba HD-A35, Oppo HD990, Dish Network 622, Pioneer DV-668AV-S w/ DVD Upgrades mod, EW Fontaine II (x5), Velodyne DD-15 (x2), Seymour AV Ice blocks (x7)