I agree with the prior two opinions. When I first received the amp., I used it to generate relatively flat response to about 25hz. Which sounds great on paper, but actually had little effect on most music and films. Then, after some playing around, I discovered that my room has a big suckout from about 50hz to up 90 hz. I then used the bass amp in order to fill in, as best I could without really goosing up the low bass around 28hz too far that it sounded ponderous.
The differences are now significant. I would let your room be your guide.
The differences are now significant. I would let your room be your guide.

