AtlasIED EQM131 1/3 Octave Graphic Equalizer

AtlasIED EQM131 31-Band 1/3 Octave Graphic Equalizer | Precision Audio EQ for Sound Masking & Paging

The AtlasIED EQM131 is a professional 31-band, 1/3 octave graphic equalizer designed to deliver accurate system equalization for sound masking, paging, and general audio applications—all at an outstanding value. Housed in a compact 1RU chassis, the EQM131 features ISO-centered, constant Q filters that minimize band interaction while maintaining wide enough response to shape precise correction curves.

Ideal for commercial and public address systems, the EQM131 offers versatile connectivity with balanced XLR and TRS inputs/outputs, plus unbalanced RCA connections for use with consumer-level (-10dBV) gear. Front panel controls include a low-pass filter (LPF), high-pass filter (HPF), gain level, and a selectable ±6dB or ±12dB EQ range for flexible system tuning.

When paired with the AtlasIED AA120M mixer amplifier and AA-SMG sound masking module, the EQM131 can be used to tailor a precise masking spectrum while maintaining clarity for paging or background music through independent EQ paths.

AtlasIED EQM131 Key Features:

• 31-band 1/3 octave equalizer with ISO-centered constant Q filters

• Selectable ±6dB or ±12dB boost/cut range per band

• Front panel LPF, HPF, and level controls

• Balanced XLR and TRS, plus unbalanced RCA inputs/outputs

• Rugged all-metal construction with low noise floor and wide dynamic range

• 1RU rack-mountable design for space-efficient integration

• Ideal for sound masking, paging, and general sound system equalization

Perfect for AV integrators, system designers, and facility managers who need affordable yet accurate EQ control in commercial audio environments.

AtlasIED EQM131 SPECIFICATIONS