Hello! I just bought a Minty Mid 90's SWR Goliath II 4x10 8ohm. Plugged it in to my New GK 1001 RB-II and played though the rig using my MTD 535. Sounds great but at higher volumes the cab seems to fart out or get a little stressed a bit only when playing lower notes on the B string (D Db C B). All 4 speakers are moving air, it sounds tight but when those lower extension notes are pushed at "Gig" volumes it seems not to like it too much if there is a little bass boost going on from the EQ. Any thoughts? I do not think the speakers are blown at all. I have the GK 1001 RB-II eq set flat and I have the bass EQ on the MTD boosted about 40%, Mids rolled back about 60% at 1k and highs are flat. Seems when I cut the boost on the bass EQ on the MTD to flat it clears it up a little I'm just thinking maybe the GK-head is not a good match with the cab. It puts out about 480 watts @ 8ohms. I have a Mint pre fender mid 1990's SM-900 on its way to me and will be here tomorrow. I'm thinking that head will match the cab better even bridged. Also the SM900 has the limiter to help avoid this I believe... Any thoughts/ opinions are appreciated.