I have had my Titan II for almost two years now. I first used the Theater input, and after reading here about the benefits of using the L/R inputs, I switched to those (my sub cable is a stereo cable, so I used both L & R inputs).
I recently got a new processor and Panoramas (replacing Sapphires). So I recalibrated the system with each new purchase. Initially, while using the L/R inputs, I had no issues. Shortly thereafter, I was listening to a CD and noticed the bass was lacking. I checked the subwoofer, and it wasn't playing. I then checked the processor setup, and it was setup Ok. But when sending pink noise to the sub, I got nothing (sub was powered on and gain control had no effect). Problem?
I switched the cable to the Theater input (using one end of the stereo cable), and now the sub functions. But I have to set the sub output to -10db (the lowest possible setting) to get the sub to be anywhere near matching the output of the other speakers. To make it sound anywhere near good, I had to crank down one of the filters (all the way down). I am crossing over at 80Hz (in the processor).
I have never had any of these issues previously (and quite happy with this great sub).
So:
1. Could I have caused a problem with the L/R inputs? I don't normally listen at extreme volumes, so I don't know what else might have caused this problem.
2. The issue regarding what I explained with the Theater input I imagine is processor related, no?
Thanks for any help with this.