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Finely adjust each room's volume via pop-free twelve step switch technology.

Designed for performance, these volume controls offer attenuation of 34 dB with a frequency response of 35Hz to 20kHz.

Tri-filar wound volume controls provide an easier load to your amplifier...extending the life of your system. Creatively combining resistive and reactive characteristics into the design, Audioplex's hand wound autoformers incorporate far more turns than any other manufacturer.

OptiMatch volume controls provide all the amplifier protection you need.

Audioplex's unique OptiMatch design includes built-in amplifier protection, enabling your stereo receiver or amplifier to safely connect up to eight pairs of speakers without the additional accessories or devices. Two, four or even eight pairs of speakers can be safely connected to any stereo capable of playing one standard (8 ohm) pair of speakers by installing all OptiMatch volume controls and adjusting the matching factor on each one after installation.

Audioplex OptiMatch controls enable you to easily adjust the impedance without removing the volume control from the wall, making professional installation faster and far less prone to error.

Overall mounting depth 2 3/8"---These will fit in standard J-box depths.