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0501 - ATTENUATORS
QC10 Series
Attenuators, Rotary
GENERAL DESCRIPTION
The Quam QC10 (xx) is a single gang, continuous rotary,
ten-step audio level attenuator with an OFF position.
Finish: QC10 - Stainless steel, embossed position
(No position on scale)
QC10 Classic - Stainless steel, debossed, paint
filled position
QC10P - Stainless steel, embossed position
(No position on scale)
QC10RM - 2” x 2” dial scale, white on black
QC10W - Hybrid white epoxy plate, white knob
Knob (all variants, except QC10W): Black with white
indicator
Knob (QC10W): White, molded indicator
INTENDED USE
QC10, QC10 Classic, QC10RM: Attenuates audio power
to any number of loudspeakers up to 20W load. For use
with 25V or 70.7V distributed audio systems; indoor
environment.
QC10P: Attenuates audio level output to any number of
loudspeakers up to 20W load. For use with 25V or
70.7V distributed audio systems; indoor environment.
When internal 24VDC relay is activated, attenuator
function is bypassed.
RECOMMENDED ADDITIONAL QUAM COMPONENTS
0403 - Surface Mounting Devices
SE4W Single Gang Box
AUDIO SPECIFICATIONS
Power Rating 20W continuous
Attenuation Steps 1-2, -6 dB
(Ref: 70.7V line) Steps 3-10, -3 dB
OFF Position, -36 dB
Insertion Loss < 0.5 dB
MECHANICAL SPECIFICATIONS
Mounting QC10, QC10 Classic, QC10W:
Single gang electrical box,
2-1/8” Deep
QC10P: 3-1/2” Deep
QC10RM: 2RU rack panel or
greater, 1/8” thick maximum
Relay Actuation 24VDC, 0.015A (QC10P only)
Audio Connection 10” Long Color-Coded Tinned
Wires, Pre-cut
Recommended construction sequences, installation instructions and A&E
Specifications are available in various formats on the Quam Architects’
and Engineers’ Resources CD or on the web at www.quamspeakers.com
ATTENTUATORS
05
Program Material: Signal tones, voice and music
SYSTEM COMPONENTS
N/A
Quam-Nichols Company
234 East Marquette Road, Chicago, IL 60637
Phone (800) NEED NOW Fax (888) NEED NOW
(800) 633-3669 (888) 633-3669
E-Mail: neednow@qnc.com www.quamspeakers.com
Ó2006 Quam-Nichols Company Quam-Nichols reserves the right to make changes and/or improvements to its products at any time and without notice. Printed in USA. TS-QC10 Series-0706
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