The Coliseum CV1 in-wall speaker volume control is the ideal simple, user-friendly solution for installations requires remote regulation of individual room level in complex 70-volt systems. Designed for easy installation, the CV1 is wired for simple inline tapping of any 70-volt signal up to 35 watts per channel and fits into a standard single gang light switch box. A dual transformer design allows the CV1 to handle stereo signal for background music and paging systems with nine volume level positions on the simple rotary control, includes a full off position for silencing a room remotely.