Fair question. As far as I know, any receiver which lets you set crossover frequencies for the sub is going to be converting to digital and back. I didn't think even the HK130 let you run the sub without digitizing the signal...

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8