A budget number would be helpful. I used a Modwright LS100 until recently and have since upgraded to a Herron VTSP-360 Reference. Both have HTBP.
My subs are active for both stereo listening and home theater. Many preamps have more than one set of outputs. You will give up the subwoofer correction from your AVR, but if you run enough subs (I have 4, 5 for HT), it won't matter.
My subs are active for both stereo listening and home theater. Many preamps have more than one set of outputs. You will give up the subwoofer correction from your AVR, but if you run enough subs (I have 4, 5 for HT), it won't matter.