The SVC4 is a unique multiple stereo volume control. It gives you the possibility to adjust (or switch off) the volume in 4 different zones. SVC4 can be used with a standard HiFi amplifier.
In case you only want to adjust 2 zones, you can use traditional 8 Ohm loudspeakers. If you want to adjust the volume in 3 to 4 zones, you have to use 16 Ohm loudspeakers.
You may use 2 loudspeakers per zone. The SVC4 uses internal resistors. In this way you can adjust (or switch off) the volume in one zone, without influencing the volume in the other zones. Built-in in a compact black metal housing, such is very durable due to the step-by-step volumes.