Thanks for your response .Love Drum and Bass as well as dance music in general.
Feel a sub is essential for that type of music. Still hard to integrate perfectly think room acoustics don't help.
Room accoustics plays the same way as with regular speakers.
Does your amp have a dedicated sub-out line port by the way? I had struggles with an older amp and my sub as seen in another topic. That was due the way it had to be connected and probably because the amp has limitations as for what output frequenties it can handle. I couldnt get more out of it than a rumble and the higher low frequencies which also the speakers could manage on their own . If that test would be my only reference I would have probably never used a sub.