Atlas Sound MO-2 User Manual
4-3/16"
6-5/8"
8"
Specifications subject to change without notice
© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL2-1484
141
TWO
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
25-WATT
CONCEALED-MOUNTING LOUDSPEAKER
MO-2
MO-2
TECHNICAL SPECIFICATIONS
Models: MO-2
Power Rating: 25 watts
Frequency Response: 400-15,000 Hz (nominal)
550-13,500 Hz (+5dB)
Sensitivity (SPL): 122dB at 25 watts (peak)
115dB at 25 watts/1 meter (avg) 550-13,500 Hz
108dB at 1 watt/1 meter (avg) 550-13,500 Hz
Dispersion Angle: 85° (-6dB, 2 kHz octave band)
Impedance: 8 ohms
Dimensions: 6
5
⁄
8
"W x 8"H x 4
3
⁄
16
"D (365 x 210 x 327mm)
Weight: 5 lbs. (2.3kgs)
Finish: Grey baked epoxy
FEATURES
• Heavy-Duty Loudspeaker with Optimum Voice and Signal Intelligibility
for Industrial, Marine, Military and Vehicular Applications
• Impact and Environment-Resistant Construction for Dependable
Indoor/Outdoor Use
• U.S.-Made Compression Driver Assures High Reliability
• Specifically Designed for Surface or Concealed Mounting
APPLICATIONS
Utilize loudspeaker Model MO-2 for signal transmission in intercom/talkback, electro-acoustic warning, CB, transceiver and public address systems in marine, vehicular, military, service and processing facilities. Unit is ideal for concealed mounting or where minimum aerodynamic obstruction is desired. Model MO-2 is engineered to withstand demanding environmental elements as produced in mining,
steel and chemical processing, oil exploration, power generation and
railroad facilities. Note: for explosion-proof loudspeakers refer to
HLE/MLE Series, SL2-1421.
GENERAL DESCRIPTION
Compact, double re-entrant unit with platform base is constructed of
heavy-gauge, die cast aluminum to minimize potential damage caused
by vibration, shock, impact, dust, wide temperature variations, high humidity, salt water and other rigorous conditions. Its integral compression driver provides optimum efficiency and signal intelligibility. Model
MO-2 also assures superior sensitivity when used as a microphone for
two-way intercommunication. All exposed parts are finished in grey
epoxy. Dimensions: 6
5
⁄8"W x 8"H x 43⁄16"D. (168 x 203 x 106mm).
Weight: 5 lbs. (2.3 kg.)
ARCHITECT AND ENGINEER SPECIFICATIONS
Concealed-mounting loudspeaker shall be environment-resistant
Atlas Sound Model MO-2 with power capability of 25 watts.
Frequency response shall be 400-15000Hz (Nominal), 550-13,500
Hz (+5dB). Sound pressure level shall be 115dB (25W/1M), 108dB
(1W/1M). Dispersion angle shall be 85°. Voice coil impedance shall
be 8 ohms. Loudspeaker shall provide superior sensitivity when
used as a microphone for two-way intercommunication. Unit shall
have a platform base constructed of heavy-gauge, die cast aluminum. Construction shall be die cast aluminum with all exposed
parts finished in grey baked epoxy.
Specifications subject to change without notice
© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL2-1484
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
Fundamental
2nd Harmonic
3rd Harmonic
MAGNITUDE (dB)
Polars Are Normalized To Zero On Axis
MAGNITUDE (dB)
Frequency (Hz)
Frequency (Hz)
MODEL MO-2
Frequency Q Di Beamwidth
500 2 3 360
1000 3 7 165
2000 9 10 85
4000 22 13 50
8000 59 18 20
Impedance Amplitude - Ohms
MO-2 Mounting Bracket Dimensions
MO-2 Harmonic Distortion - 1 watt @ 1 meter
MO-2 Frequency Response
MO-2 Impedance Sweep
Atlas Sound products are designed and tested in our well-equipped research laboratory which contains a fully anechoic chamber, complete
analog Bruel & Kjaer measurement equipment and Techron®TEF 20®audio analyzer. Atlas Sound is proud to be a beta site for TEF software.
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