AudioSource AE100VC Impedance Matching Volume Control;

The AE100VC features high quality audio transformers, removable solderless connection terminals and a computer grade double-sided glass-epoxy printed circuit board. An impedance matching switch multiplies the impedance the amplifier "sees" by two, four or eight times, allowing parallel connection of multiple AE100VCs without damaging the amplifier. Twelve knob positions provide a maximum of 39dB of attenuation. The AE100VC package includes a metal mounting bracket, and three sets of color matched knobs, plastic inserts, and screws. (White, Bone and Ivory)