The Quam QC4 is a single gang, rotary, wire-wound stepless attenuator with an OFF position. The finish is brushed stainless steel with embossed scale positions. The knob is black with white indicators.

All stepped attenuators shown below are available in a rack mount configuration. Devices require a 2RU panel or higher, 1/8” thick maximum; shipped with a pressure sensitive legend panel. 

The QC101M/RM is shown.

The Quam QC10 Series is a single gang, continuous rotary, ten-step audio level attenuator with an OFF position. Finishes vary with the model; refer to the individual technical specification. The knobs (except QC10W) are black with white indicators. The QC10W knob has a white, molded indicator.

All variants are UL Listed 813. Click on the UL Listed Products in the navigation panel to the left to see a complete listing of Quam UL listed products.

The Quam QC20 is a single gang, continuous rotary, ten-step audio level attenuator with an OFF position and 4-pin terminal block connector. It is finished with a brushed stainless steel faceplate, embossed positions, and black knob with white indicator.

The QC20 attenuates audio power to any number of loudspeakers up to a 20W load. For use with 25V or 70.7V distributed audio systems; indoor environment.

The Quam QC20/RP1, 2, 3, 4, 5 or 6 is a 19”, 2RU rack panel with 1 to 6 continuous rotary, ten-step udio level attenuators with an OFF position. A ten position index label is mounted on the rack panel; a label holder with clear plastic insert is mounted below each attenuator.

The faceplate is16 gauge CRS and finish is black baked epoxy hybrid. The knob is black with white indicator mark.

The QC100 is a dual gang, continuous rotary ten-step audio level attenuator with an OFF position. The QC101 is a single gang, continuous rotary ten-step audio level attenuator with an OFF position. Formats available are: -P (Priority relay), -RM (Rack Mount) and –W (White finish).

The Quam QC101M (Masking) is a single gang, continuous rotary, ten-step audio level attenuator with an OFF position and 4-pin terminal block connector; attenuation is in -1.5dB steps. It is finished with brushed  stainless steel faceplate, embossed positions and black knob with white indicator.

The QC101M attenuates audio power to any number of loudspeakers up to a 100W load. For use with 25V or 70.7V distributed audio systems; indoor environment.

The Quam QC101M/RP1, 2, 3, 4, 5, or 6 is a 19”, 2RU rack panel with 1 to 6 continuous rotary, ten-step audio level attenuators with an OFF position. A ten position index label is mounted on the rack panel; a label holder with clear plastic insert is mounted below each attenuator.

The faceplate is16 gauge CRS and finish is black baked epoxy hybrid. The knob is black with white indicator mark.