Hi guys, this is my first post. Looks like a good forum, wish I had found it earlier. We're playing some gigs this summer at a boat dock (outside with cover) and I think I may need to augment my 18" Bagend cabinet (8 ohms). I have 2 heads, a Trace Elliot AH500 and an Ampeg SVT 3 Pro. I also have an American made Ampeg 2 x 10" cab at 4 ohms. They sound pretty good together, but the 8 ohm BagEnd at 8 ohms sometimes reaches its limits, my feeling is I need to add another 8 ohm cabinet and run them at 4 ohms, and move more air. Considering another BagEnd cab, an Ampeg SVT-410HE, and a Genz-Benz GB410T. Any thoughts would be appreciated!