Atlas Sound EQM131 User Manual
Complex Problems
Analog
need to be versatile enough to
handle sound masking as well
as sound reinforcement.
EQM131 1⁄3 Octave Graphic
Equalizer from
Atlas Sound
1
⁄
3
octave equalizers
Atlas
Atlas
Solutions
Solutions
A high quality filter set is
hard to find on an inexpensive
equalizer.
Input / output options
must support numerous
applications.
• Low noise floor, wide
dynamic range and all
metal construction makes
the EQM131 a perfect
choice for any application
requiring equalization.
• High performance ISO centered
constant Q filters.
• XLR, TRS, and RCA inputs & outputs.
Ask your Atlas Representative for
details and discover how the simple
solution is the Atlas Solution!
ISO9001
-CERTIFIED-
1601 Jack McKay Blvd., Ennis, TX 75119 U.S.A. 800.876.3333 FAX ORDERS TO: 800.765.3435
EQM131
The Atlas Sound 1 RU EQM131 is easily connected to any system via rear panel balanced TRS and XLR jacks.
Unbalanced RCA connections are also provided for use with -10 dBV equipment. Front panel mounted Low Pass
Filter / High Pass Filter (LPF / HPF) and level controls are provided along with a switch for ±6 db or ±12 dB operation as well as 31 sturdy 20 mm filter slide controls. The ISO centered 1⁄3 octave bandwidth-constant Q filter
design minimizes interaction between filters yet is still wide enough for effective correction curves.
When utilized with the Atlas Sound AA120M mixer amplifier and AA-SMG sound masking module, the EQM131
can be used to create a 1⁄3 octave masking spectrum which is fed directly to the AA120M amplifier. Paging or
music inputs can receive high frequency shelving equalization for better intelligibility from the AA120M front panel
controls. The page / music inputs and masking module output can then be summed without affecting the masking
source spectrum equalized by the EQM131.
Filter Type Input Impedance
Constant Q 20 kHz Balanced,
1601 Jack McKay Blvd., Ennis, TX 75119 U.S.A. 800.876.3333 FAX ORDERS TO: 800.765.3435
© 2008 Atlas Sound LP. All Rights Reserved. Atlas Sound and Strategy Series® are registered trademarks of Atlas Sound LP. ATS002688 RevD 05/08 484116
All other trademarks are the property of their respective owners.
15 kHz Unbalanced
Maximum
Input Level
+22 dBm 150 Ω +22 dBm Blanced,
Output
Impedance
Maximum Output
Level
+18 dBm Unbalanced
Signal to
Noise Level
94 dB .01% 20 hz – 20 kHz
ISO9001
-CERTIFIED-
THD
Frequency
Response
(±.5 dB)
Power
Requirement
115V / 230V
50 Hz / 60 Hz
Dimensions
(H x W x D)
1.75” (4.45 cm)
19” (48.3 cm)
8.5” (21.6 cm)
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