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 still not where it should be. When I play the amp through a TC Electronics RS210 it sounds fine but not much low end which I need at times and is the reason I got the RS 115. I’m thinking there’s something wrong with the driver. I contacted the folks at musictribe and they told me the parts list shows the driver as an eminence delta15a. I’d like to replace it with a NEO 15” speaker like a Deltalite II, Kappalite or GK Neo driver to cut down a bit on the weight. I know I need to match the speaker specs with the cabinet size. Any thoughts or advice?