Related Clues:

• Karaoke singer's need
• Unit of current, informally
• Acoustic guitarist's lack
• Raise, with 'up'
• Item in a roadie's burden
• AC unit
• Emcee's aid
• Music box
• Monkee Nesmith
• Lecturer's aid
• Eavesdropping aid
• Gear for a roadie
• Rock requirement
• Measure of current
• It helps pump up the volume