The LVC provides a simple in-line Volume Controller with RS232 control. With line level balanced/unbalanced in and out and RS232 connections, the LVC adds easy audio level control to any system. This is an ideal replacement for systems using Infra-red controlled amplifiers or devices which don't have enough RS232 control functions. With power on/off, audio volume up/down and absolute control, mute on/off, and mono/stereo modes available, it works seamlessly with SY Keypad Controllers with rotary volume control for absolute volume control of any system. Absolute Volume control sends definitive audio levels as opposed to arbitrary up and down commands and is now the expectation in any professional system.