Atlas Sound SM52-B - Manual (Page 2)

Specifications subject to change without notice
© 2002 Atlas Sound Printed in U.S.A. 000202 SL1-1191
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 AtlasSound.com
Care should be taken to ensure that the chosen fixing point is strong
enough to support the SM52. Care should also be taken to ensure
that the SM52 is not exposed to direct precipitation. A
5 ⁄
8
"-27 threaded
hole is provided on the C-bracket to allow the SM52 series speaker
to be mounted on any Atlas Sound microphone stand for near-field
live sound applications. 2
3 ⁄
8
" OC brass inserts are also provided on the
rear of the SM52 to accommodate OMNIMOUNT™ 25 series
brackets. All inserts for mounting knobs are standard
1 ⁄
4
"-20 to
allow easy substitution of off-the-shelf vandal-proof torx head or
"one-way" hardware. Input connectors include a sealed
1 ⁄
4
" phone
jack and touch-proof 5-way binding posts capable of accepting up to
#12AWG cable.
1 ⁄
4
" jack and binding posts are paralleled to allow
"daisy chain" connections between the two connector types.
A tongue-in-groove cover with rubber wire exit grommet is provided
to insure input connections are protected. 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 __________ (SM52-B or SM52-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 (SM52-B) or white (SM52-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 5 1 ⁄
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-fre-
quency component. The loudspeaker system shall meet the following
performance criteria: Power handling, 100 Watts RMS; 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. Impedance shall be 8 ohms nominal. Input connectors shall
include (1) sealed
1 ⁄
4
" phone jack and (1) 5-way touch-proof binding
post. A tongue-in-groove cover with rubber wire exit grommet shall be
provided to protect the input connectors. The loudspeaker system
shall exhibit no performance or cosmetic degradation after a 100 hour
salt spray test per ASTM B117 The unit shall be 10
3 ⁄
16
"(25.8cm) high,
6 7 ⁄
8
" (17.5cm) wide, 5 7 ⁄
8
" (14.85cm) deep.
SM52 Frequency Response
SM52 Horizontal Distortion
FREQUENCY (Hz)
FREQUENCY (Hz)
SPL in dB
SPL in dB
FUNDAMENTAL
3 RD HARMONIC
2 ND HARMONIC