Related Clues:
- Energize, with "up"
- Intensifies, with "up"
- Increases, with "up"
- Piece of stage equipment
- Intensifies (with "up")
- Band's booster
- Units of electric current
- Lollapalooza gear
- Rock concert implement
- Basses go through them
- Rock-band sound boosters
- Hypes (up)
- Rock tool?
- Current units, informally
- Tour tote