Quam SYSTEM 12 24" x 24" Lay-In Ceiling Tile Speaker 5W-25/70VThe SYSTEM 12 by Quam is a complete loudspeaker assembly with a full range loudspeaker, perforated steel baffle, and integral molded fiber enclosure. Finish is a white baked epoxy hybrid. Intended use in an indoor environment, mounted parallel to floor plane in a 24" wide suspended ceiling tile grid for signal tones, voice, and music. The Quam SYSTEM 12 is UL Listed 1480- (UEAY, UAEY7-Canada) when installed in accordance with supplied installation instructions, requirements of NEC and AHJ. Made in Chicago, USA.
Specifications: • 25/70.7V transformer: 5, 2.5, 1.25, 0.63, 0.31 watt • Average sensitivity: 92 dB 1W/1m • Power rating: 12 watts RMS • Max. system output: 99 dB, 5W/1m • Magnet type: weight: BeFe ceramic, 4.8 oz. nominal • Frequency response: 65 Hz - 17 kHz • Nominal coverage angle: 100° included angle, -6 dB/ 2 kHz, half space • Audio connection: 7" long labeled, tinned wires, pre-cut.
Constant Voltage (70-Volt) Audio Systems
Audio distribution systems, especially those commonly used in department stores, warehouses, restaurants, etc., require that many loudspeakers be driven from a single audio amplifier over long runs of speaker wire. The "constant voltage" or "high impedance distribution" audio systems can be complex to understand at first, however, provides many advantages. Learn how to design your own 70-volt or 25-volt loudspeaker system.