Atlas IED EQM131 Datasheet

EQM131

1

⁄3 Octave Graphic Equalizer

EQM131 Front

EQM131 Back

Features

• High Performance Iso Centered Constant Q Filters

• Low Noise Floor, Wide Dynamic Range and All Metal Construction Makes

the Eqm131 a Perfect Choice for Any Application Requiring Equalization

• Xlr, Trs and Rca Inputs & Outputs

General Description

The EQM131 will provide basic system equalization for sound masking or
general public address applications at an amazingly affordable price.

The 1RU tall EQM131 is easily connected to any system via rear panel
balanced TRS and XLR jacks. Unbalanced RCA connections are also
provided for use with -10dBV equipment. Front panel mounted LPF/
HPF and level controls are provided along with a switch for ±6 or ±12dB
operation and 31 sturdy 20mm filter slide controls.

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The ISO centered

minimizes interaction between filters yet is still wide enough for creation
of correction curves.

When used with the Atlas Sound AA120M mixer amplifier and AA-SMG
sound masking module, the EQM131 can be used to create a
masking spectrum which is fed directly to the AA120M amplifier section.
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.

⁄3 octave bandwidth-constant Q filter design

1

⁄3 octave

Specifications

Height 13⁄4" (44.45mm)

Width 19" (482.6mm)

Depth 81⁄2" (215.9mm)

Shipping Weight 4.90 lbs (2.22 kgs)

Frequency
Response 20Hz – 20kHz (±5dB)

Connector Type XLR/TRS and RCA

Output Level +22dBu Balanced, +18dBu Unbalanced

Rack Spaces 1RU

Architect and Engineer Specifications

Graphic equalizer shall be Atlas Sound model EQM-131. Unit shall have
a front panel mounted LPF/HPF as well as a switch for ±6dB or ±12dB
operation. Connections shall be made to the unit using either a balanced
TRS or XLR connector located on the back of the unit. Equalizer shall
also have a single unbalanced RCA connection input for use with -10dBV
equipment. Equalizer shall have 31 frequency adjustments featuring
20mm slide controls for each frequency. Frequency response shall be
20Hz-20kHz and the output level will be +22dBu balanced and +18dB
unbalanced. Finish shall be textured black epoxy and dimensions shall be
19"W x 8.5"D x 1.75"H (482.6mm x 215.9mm x 44.5mm).

©2011 Atlas Sound L.P. All rights reserved. Atlas Sound and Strategy Series are trademarks of Atlas Sound L.P. All other trademarks are the property of their respective owners. ATS004193 RevA 9/11

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
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