This Bass box is unreal! First it is super LIGHT. Second it is SMALL. Third it is LOUD! Rated 400w at 8ohms, but I'm pretty sure the LaVoce speaker inside is rated much higher. Super efficient design. One is loud enough for most gigs. I stack two to get my impedance down to 4ohm and to pump out the full wattage of my head-- and the sound is massive. I've owned many bass boxes, from 15s, 10s, 12s.. these sound like vintage 15s without the weight and size. Absolutely a great box. I prefer the black to the orange as I find the black tolex a little less soft and more robust. Hard to beat this bass box. Fully recommend.