Related Clues:

• Gun, as a motor
• Clergyman's address
• Make loud
• Gig component
• Minister's nickname
• One could go up to 11 in 'This Is Spinal Tap'
• Item of concern in a sound check
• Sound booster at a concert
• Rock booster
• Arena blaster
• Roadie's armful
• It's for the Byrds?
• Measure of electric current
• Band buy
• It pumps up the volume, for short