Only had a chance to give it a quick flogging. Was only running it 90Hz down thru a peavey kosmos and off a peavey pv900 (no eq'ing). 180 watts into 8 ohms and shaking the building something fierce. Can't wait to put some power into tomorrow. I beat some dubstep into it- loud and low. Hitting all the low notes -no prob. Will also try sine wave generator tomorrow too..... Hoping to go grab a regular HOG for comparison also.