Quam SYSTEM 12/VC 24" x 24" Lay-In Ceiling Tile Speaker 5W-25/70VThe SYSTEM 12/VC by Quam is a complete loudspeaker assembly with an 8" O.D., full range loudspeaker, 5 watt-25/70.7V pigtail transformer with volume control, perforated steel baffle, and integral molded fiber enclosure. 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. Note: not UL listed. 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.