Orange Amplifiers Terror Bass 500 Series BT500H 500W Bass Amp Head for sale Terror Bass from Orange is a 500W hybrid bass amp head with a Class D solid-state power section and the AD200B twin-tube 12AX7 preamp. Amp is in great condition as you can see from the pictures. I purchased the longer power cable as the included cable is REAL short and a lighter gauge. The front zipper on the bag came derailed trying to put the bigger cable in, an easy fix Im sure. Looking for $500 shipped CONUS fully insured. Not really looking for trades at this time, but will always entertain offers.