® 131 Single Channel 31-Band Graphic Equalizer The dbx 2-Series Graphic Equalizer series have been designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightfor- ward controls. The 131 provides not only offers standard features like single-channel, 31, 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 50Hz/12 dB per octave low-cut filter, but also includes other insightful features. These features include 20 mm faders; selectable +/-6dB or +/-12dB boost/cut range for precise gain adjustments; XLR, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation. The visionary design of the dbx 2-Series makes your job easier. The 2-Series represents a major step forward in the performance of entry-level graphic equalizers. From its amazing 10Hz to 50kHz frequency response, to its 108dB dynamic range, internal toroidal transformer, the 2-Series offers out of this world specifications with a down to earth price point. Sure to find a home in the studio, on tour and with installed ® sound venues, the 2-Series is destined to take its rightful place in the lineage of great dbx signal processors that are the professional’s choice in signal processing. With such afford- able quality, there’s no longer any excuse for compromising your sound. • Single 31-band, 1/3-octave • XLR and TRS Inputs and Outputs Constant Q frequency bands • Internal Toroidal Transformer • Switchable boost/cut ranges of ±6 or ±12 dB • Frequency Response of <10 Hz to >50kHz • 12 dB per octave, 3dB down @ 50Hz low-cut filter • Dynamic range of greater than 108dB • Front panel bypass switch • ±12 dB input gain range 8760 S. Sandy Pkwy. • 4-segment LED ladders for moni- Sandy, Utah 84070 Phone (801) 568-7660 toring output levels Fax (801) 568-7662 Int’l Fax (801) 568-7583 customer@dbxpro.com http://www.dbxpro.com A Harman International Company 18-0109-A 7/02 131 Single Channel 31-Band Graphic Equalizer Inputs Function Switches Connectors: 1/4" TRS, female XLR (pin 2 hot) EQ Bypass: Bypasses the graphic equalizer section in the signal path Type: Electronically balanced/unbalanced, RF filtered Low Cut: Activates the 50Hz 12dB/octave high-pass filter Impedance: Balanced 40kΩ, unbalanced 20kΩ Range: Selects either +/- 6dB or +/- 12dB slider boost/cut range Max Input Level: >+21dBu balanced or unbalanced CMRR: >40dB, typically >55dB at 1kHz Outputs Power Supply Connectors: 1/4" TRS, male XLR (pin 2 hot) Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz, 230VAC 50/60Hz Type: Impedance-balanced/unbalanced, RF filtered Power Consumption: 12W Impedance: Balanced 100Ω, unbalanced 50Ω Mains Connection: IEC receptacle Max Output Level: >+21dBu balanced/unbalanced into 2kΩ or greater >+18dBm balanced/unbalanced (into 600Ω) Note: Specifications subject to change. System Performance Bandwidth: 20Hz to 20kHz, +0.5/-1dB Frequency Response: <10Hz to >50kHz, +0.5/-3dB Dynamic Range: 108db Signal-to-Noise: 90db THD+Noise: <0.004% Interchannel Crosstalk: <-80dB, 20Hz to 20kHz dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice. FOR MORE INFORMATION CONTACT: dbx Professional Products 8760 S. Sandy Pkwy. Sandy, Utah 84070 Phone (801) 568-7660 Fax (801) 568-7662 customer@dbxpro.com http://www.dbxpro.com The Professional’s Choice In Signal Processing A Harman International Company