Care should be taken to ensure that the chosen fixing point is strong enough to support the SM52T. Care should also be taken to ensure that the SM52T is not exposed to direct precipitation. A 5⁄8"-27 threaded hole is provided on the C-bracket to allow the SM52T series speaker to be mounted on any Atlas Sound microphone stand for near-field live sound applications. 23⁄8" OC brass inserts are also provided on the rear of the SM52T to accommodate OMNIMOUNT™ 25 series brackets.
All inserts for mounting knobs are standard 1⁄4"-20 to allow easy substi- tution of off-the-shlelf vandal-proof torx head or "one-way" hardware. Input connectors include a two pole barrier strip with wire capture "caps" capable of accepting up to (2) #14AWG cable. .94, 1.9, 3.7, 7.5, 15, and 30 watt taps are screwdriver selectable via a sealed switch located near the input section on the rear of the cabinet.
A tongue-in-groove cover with rubber wire exit grommet is provided to protect the input connections and transformer switch assembly from moisture. Systems are available in black or white and can be painted to accommodate any architectural considerations.
ARCHITECT AND ENGINEER SPECIFICATIONS
The indoor/outdoor mini-loudspeaker system shall be Atlas Sound Model __________ (SM52T-B or SM52T-W) or approved equal.
Assemblies shall consist of 2-way, woofer and tweeter, within
environment-resistant housings. Enclosure shall be constructed of paintable UV-resistant, talc impregnated, polypropylene, injection molded plastic finished in black (SM52T-B) or white (SM52T-W). Each unit shall include a stamped, powder coated, aluminum grille and removable C-shaped mounting bracket. All hardware inserts shall be brass and threaded 1⁄4"-20. The 100-Watt RMS system shall have a 51⁄4" (133mm) woofer, constructed of reinforced polypropylene, and a 1" (25mm) FerroFluid tweeter. The dividing network crossover frequency shall be 5000 Hz. The dividing network shall include protection circuits for the high-frequency component. Each unit shall include an internally mounted 30 watt 70.7V/100V line matching transformer for use in distributed sound applications wattage taps shall be screwdriver selec- table via a sealed switch located near the input section. Wattage taps shall be .94, 1.9, 3.7, 7.5, 15, 30 @ 70.7V. The loudspeaker system shall meet the following performance criteria: Power handling, 100 Watts RMS (Transformer limited); Frequency response, ±3dB from 85 Hz to 20 kHz; Pressure sensitivity, 90dB SPL at one watt, 100 Hz to 10 kHz measured at a distance of one meter on axis. Input connectors shall include a two-pole barrier strip capable of accepting up to (2) #14AWG cable. A tongue-in-groove cover with rubber wire exit grommet shall be provided to protect the input connectors from corrosion. The unit shall be 103⁄16"(25.8cm) high, 67⁄8" (17.5cm) wide, 57⁄8" (14.85cm) deep.
