I have a L1 Model 2 and bought an addition sub to give more bottom end. As an aside, I also have an L1 Model 1. When I plug any one of the three subs I have into the L1M2, it works fine. When I plug an additional sub into the unit, the bass goes away in about two seconds. It doesn't matter which sub or cable I use(I tested all combinations), the result is the same; no bass with two subs. Any idea where the issue is?
El Rancho, This issue is quite peculiar. My suggestion for your would be to check the power LED light on the power stand to make sure it is solid blue. If it is red then you may have an amplifier issue. Please let us know what the status is.