Related Clues:
- Guitarist's key-changing tool
- Band's device
- Don's partner in the underworld
- Box on stage?
- Aid in boosting the signal
- Mafia leader's way of raising the tone?
- Theater box?
- Campaigner dismisses Grecian Band Aid?
- 59-Down need
- Electronic drums' blaster
- Concert's sound booster, for short
- What an electric guitar hooks up to
- Electric flow measure
- Large concert box
- A legislator's current measure