Atlas IED EQM131 1/3 Octave Graphic EQ with Constant Q Filter

The EQM131 is a ⅓-octave graphic equalizer from AtlasIED that provides basic system equalization for sound masking or general public address applications at an remarkably affordable price. This 1U device 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-located LPF/HPF and level controls are also present, as well as a switch for +/-6 or +/-12 dB operation and 31 sturdy 20mm filter slide controls. The ISO-centered ⅓-octave bandwidth, constant Q filter design minimizes interaction between filters, yet is still wide enough to allow for the creation of correction curves.

When it's used with the Atlas Sound AA120M mixer amplifier and AA-SMG sound masking module (both sold separately), this unit can be used to create a ⅓-octave masking spectrum which is then fed directly to the AA120M amplifier section. Paging or music inputs can receive high frequency shelving equalization for better intelligibility from the AA120M's 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.

Features:

• High-performance ISO-centered constant Q filters
• Low noise floor, wide dynamic range and all-metal construction
• XLR, TRS, and RCA inputs and outputs

Specifications:

• Height: 1-¾" (4.445cm)
• Width: 190-1/16" (48.2854 cm)
• Depth: 8-½" (21.59 cm)
• Shipping Weight: 4.90 lbs. (2.22 kg)
• Frequency Response: 20 Hz - 20 kHz +/- 0.5 dB
• Connector Type: XLR/TRS and RCA
• Output Level: +22 dBu balanced, +18 dBu unbalanced
• Rack Spaces: 1