Stereo control
Else clues• Audio control
• Audio engineer's controller
• Auto sound-system control
• Dimming device
• Item losing colorfastness
• One losing vitality
• Pitcher's curve
• Production studio device
• Recording device applied to applause
• Sound engineer's control
• Sound engineer's knob
• Sound system control
• Stereo device
• Stereo knob that balances volume
• Volume control in broadcasting