For Sale: Crate PowerBlock 150 Comes with carrying case. Carrying case zipper for extra storage compartment is broken, but the zipper for the PowerBlock compartment works. I have been using it for the last year as an at-home practice amp through a 2x12. Works great, and can get really loud and stay clean. Now that my GK amp is home again, this amp is not needed. Asking Price: $150 paypal'd and shipped to the 48-states.