Related Clues:

• Concert aid
• Unit of electrical current
• Solid-state, e.g.
• Connection for an electric guitar
• Unit of elec. current
• Booster of a rock band
• Air current
• Rock band's item
• Sound intensifier
• Easy task, slangily
• Increase, with ''up''
• A little juice?
• Speaker's adjunct
• One coulomb per sec
• You can rock with one