Related Clues:
- Rock bands' boxes
- Concert's sound booster, for short
- What an electric guitar hooks up to
- Band blasters
- Electric guitar's volume boosters
- Electric flow measure
- Current measures a politician outlines, finally
- Large concert box
- A legislator's current measure
- Big thing to haul on stage
- Box for blasting
- Bassist's booster
- Keyboard attachment
- Increase the intensity (with "up")
- Current measure shown by a member?