Has the system been calibrated?

Alan - I run the same sub (Outlaw LFM1 +)with my M22's and have found after multiple crossover experiments the 60Hz works best for my environment. I have always read to go ahead and test your setting parameters and finalize on the ones that you feel are optimum. Is there an element I've missed that would dictate a move back to the 80Hz?

That's likely the key.

Sheb, a difference in SPL is a difference in volume. If by "jump" you meant a notable volume variance, then by definition the speaker/sub levels aren't properly calibrated. If you've been attempting to do this by ear to "taste", it wouldn't be surprising; our ears are great for enjoying music, but for measuring they suck.

Proper calibration can best be done with one of the auto-calibration systems many modern HT receivers have. A second possibility would be using an SPL meter such as the digital RadioShack unit. The most common problem is setting the sub level too loud. The sub shouldn't be heard as a separate entity, but rather that it isn't there and the speakers are putting out more bass. I'd hazard a guess that the point where you say that you "lose volume" is closer to the correct one.

I set the cross-over at 100Hz for my M22s. Big Velodyne. Love the combo.

I think with a higher crossover point and making sure the system is calibrated the OP would be pleased with his existing system.

Me, I remember the cube amp. I always liked the idea of Carver.

Bob Carver, it seemed, had that ability to look at a problem and find a path to a solution that no one else had traveled.

Might we be looking at the same thing here with the new M100?

Mark, wrong thread ?

Mark posts from another dimension anyway. . . .

It must be his room LOL