Related Clues:
- Solid-state, e.g.
- Connection for an electric guitar
- Unit of elec. current
- Booster of a rock band
- Guitar boosters
- Rock band's item
- Concert's sound boosters
- Sound intensifier
- Increase, with ''up''
- Some were for The Byrds
- Concert blocks
- A little juice?
- Gear for gigs
- Speaker's adjunct
- One coulomb per sec