Niles Audio VCS100R

The VCS 100 is a wall mount, stereo speaker volume control. It connects between the speaker-level output of an amplifier, speaker selector, or distribution hub and a pair of speakers.

A perfect application for the VCS 100 is adjusting the volume of remotely located speakers. The VCS 100 adjusts the volume of speakers connected to it by attenuating the amplifier signal. To assure minimal dissipation of internal power with virtually no power wasted as heat, Nilesvolume controls use autoformers instead of L-pads as the volume-controlling element.

The VCS 100 is an impedance-magnifying (IM) volume control. Unlike other brands, it has additional autoformer windings that magnify the impedance of connected speakers, while allowing all 12 steps to adjust the volume of the sound. Switches on the PC board select these windings.

With the volume control providing impedance protection for your amplifier, you can create systems with no additional impedance-matching devices between the volume control and the amplifier.

In a typical application of IM controls, a system has eight pairs of 8-ohm speakers throughout the house and in adjacent outdoor locations. Connect each pair of speakers to an IM volume control with its switch in the 8x position, eliminating the need for an external impedancematching device to protect the amplifier. Even when playing all eight speaker pairs at once, the amplifier runs at normal operating temperatures.