PSB Speakers Speaker CW170FR User Manual

Be Heard, Not Seen  
P S B C u s t o m S o u n d I n - W a l l S p e a k e r S y s t e m  
CW170FR - Fire Rated In-Ceiling System  
The CW170FR loudspeaker is a highly versatile 6” coaxial system  
designed for applications requiring a fire rated ceiling loudspeaker.  
Many city and regional authorities are now requiring in-ceiling  
systems to be fire rated. To answer this need we offer the  
CW170FR, which passes UL 2043 and UL 1480 standards. The  
system is enclosed in a 20 gauge steel can that gives it both the fire  
rating properties and a proper acoustical enclosure.  
The speaker unit is a wide range 6 ½” polypropylene coned coaxial  
with a ¾” soft dome tweeter mounting on a pivotable post.  
A sophisticated crossover gives smooth and flat response through  
the midrange and a slight rise through the highest treble frequencies,  
a response suitable for a ceiling speaker. The back can gives full  
isolation from the ceiling environment and allows the system to be  
bass reflex vented for extended bass response.  
A low profile perforated grille with removable scrim allows the system  
to be painted any color to further enhance invisibility. Extensive  
mounting bracketry is included for easy ceiling mounting in either dry  
wall or acoustical tiled ceilings. Four “dog leg” style clamps provide  
quick and easy mounting.  
A removable steel cover has a clamp suitable for sheathed or  
armored cable. Underneath it is a 4 conductor plug with set screw  
connections.  
A 70Volt/100Volt transformer is built into the system. This allows  
multiple speakers to be connected on the same circuit while each  
speaker can be set to an individual volume level. The transformer  
has a multi-position switch with 3 settings for volume (power  
absorbed from the 70/100Volt line) and a 4th position that bypasses  
the line transformer entirely.  
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