Quam C5/BU/W 8" Speaker Screw-through Baffle 5W-25/70VThe C5/BU/W by Quam is a complete loudspeaker assembly with an 8" O.D., 12 watt dual-cone full range loudspeaker, 5 watt-25/70.7V transformer, and 22 gauge steel screw mount baffle. Baffle finish is a white baked epoxy hybrid. Intended use is ceiling mounted in an indoor environment downward facing for signal tones, voice, and music. Made in Chicago, USA.
Specifications: • 25/70.7V transformer: 5, 2.5, 1.25, 0.63, 0.31 watt • Baffle: Screw mount • Average sensitivity: 92 dB 1W/1m • Power rating: 12 watts RMS • Calculated output: 99 dB SPL, 5W/1m • Magnet type: weight: BeFe ceramic, 4.8 oz. nominal • Frequency response: 65 Hz - 17 kHz • Nominal coverage angle: 90° included angle, -6 dB/ 2 kHz, half space • Audio connection: 7" long, color-coded 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.
