Well don’t know about the phase stuff ... I just kept mine at 0
But if you set the subs to be the same volume as the fronts ... your boosting the base (which given my hearing might not be a bad thing).
I‘m thinking that maybe a way to match the sub Level to the LFR is to
1. meter at the MLP, set the DSP crossover out of the way and play a 100hz tone with the subs level set at 0.
2. Now start raising the sub level till you see a change in SPLs at the MLP
3. Back off the sub level so it drops to the original LFR alone level.
4. Set the DSP crossover to 40 or what ever you think is right.
