Related Clues:
- Music boosters
- Intensifies, with ''up''
- Guitar store items
- Unit of electric current, informally
- Rock guitarist's accessory
- Blasting aid?
- Piece of concert equipment
- Concert stack
- Rock guitarist's aid
- Concert-stage gear
- Hi-fi part
- Rock band's equipment
- Increases, with ''up''
- Rock-band boosters
- Rock-concert equipment