Related Clues:
- Power increaser
- Roadie's armload
- Guitarist's clamp
- Guitar neck gadget
- A rather quiet sound is increased by this
- Bandstand box
- Equipment hauled by a roadie
- Electric guitar accessory
- Device making sound louder
- Guitar music blaster
- Bit of concert gear
- Box at a concert
- Rock music sound booster
- Tool for a guitarist
- Concert device