If your sub has speaker level inputs then everything is fine. I run my subs just like this. The sub will draw a small amount of current from the amp to run its internal amp but not enough to matter. There is no danger to your amp. If the sub has only line level inputs then you have to go another way. I don't understand your proposed hook up. If you ran speaker wires to the sub you would be using the subs amp to drive the sub from signals from the main amp but if the main amp was not driving the main speakers where would the signal be coming from?
2 responses Add your response