Orange AD200B MKIII

200W All-tube Bass Amp Head with Gain, 3-band EQ, and Master Volume. The Orange AD200B MK 3 bass head is about pure tube tone. With four 6550s in the engine room, this amp delivers 200 arena-shaking watts and is refreshingly simple to operate. The gain control lets you drive the preamp tubes for the perfect amount of front-end dirt, while the 3-band EQ lets you sculpt your tone to taste.