I think cabs are key to this amp. I mean, they usually are, but especially so with the way this one is voiced. I tried a 15, a 12, a 410, a whole heck of a lot of knob twisting and could not get a sound to cut through the mix for the life of me. I ended up having a similar issue with a Portaflex 800, so it makes sense the comparison between the V4B and the Tonehammer, and makes sense that it's nothing to do with the Aggie, just didn't fit my cabs and personal sound. I'd love to give it another go in the future, because it's felt the most solid all-around of any amp I've tried on the micro end of things.