rs115

Hi, I have a TC Electronics RH450 amp that I play through a TC Electronics RS115 cabinet. I bought the RS115 used and at low volume it sounds fine. At gig volumes (50-70%) it sounds terrible. Boomy and too bassy almost to the point of distortion. When I turn the bass down it sounds better but...

This stuff always confuses me, so I'm hoping someone here with the correct knowledge can help me out? It's a wattage/Ohm question... I'm currently using TC-Electronic rig comprising a BH550 amp (550w, 4 Ohm) into 2 x RS115 (400w, 8 Ohm) cabs and it produces a sweet bass sound ideal for my...