Related Clues:
- Item of concern in a sound check
- Sound booster at a concert
- Rock booster
- Equipment for Coldplay
- They're at all the big concerts
- Arena blaster
- Gear to help you hear
- Roadie's armful
- Concert load
- It's for the Byrds?
- Concert boosters
- Measure of electric current
- Bits of current
- Band buy
- It pumps up the volume, for short