You can.
I do - works perfect.
AVR sub out goes to the LFE input on the sub.
Integrated amp with HT Bypass with preouts goes to the line level inputs to the sub.
For movies, Int Amp set to HT input, preouts are disabled, and the AVR sub out drives the sub with the scary low LFE effects.
For music, AVR is off, and source components are directly connected to the int amp, sub gets full range audio and the xover is set to blend with my mains.
No feedback, no cable swapping.
I do - works perfect.
AVR sub out goes to the LFE input on the sub.
Integrated amp with HT Bypass with preouts goes to the line level inputs to the sub.
For movies, Int Amp set to HT input, preouts are disabled, and the AVR sub out drives the sub with the scary low LFE effects.
For music, AVR is off, and source components are directly connected to the int amp, sub gets full range audio and the xover is set to blend with my mains.
No feedback, no cable swapping.