231 Dual Channel 31-Band Equaliser
The SWAMP 231 offers two 31-band channels of 1/3-octave equalization, as well as +/- 6 or +/-12 dB boost/cut range, 20mm faders and XLR / 1/4" inputs. Easy to use and delivers exceptional sound, performance, and reliability.
When to Use a Graphic EQ
Graphic EQ's are essential for live sound engineering, and are a vital tool for PA systems in any acoustic space. They are used to treat a Main Mix or Foldback Monitor output signal and tailor the sound to suit the room. An Equalizer provides the means to "cut" or reduce frequencies that may cause feedback on stage, or in the room, and eliminate unpleasant and harmful frequencies in the PA system.
Solid Build Quality
Rugged construction and solid audio performance make these equalizers particularly well suited to fixed installation as well as touring live sound systems.
- Two 31-band, 1/3-octave Constant Q frequency bands
- Switchable boost/cut ranges of +/- 6 or +/- 12 dB
- 12dB per octave 50Hz low-cut filter
- Front panel bypass switch
- +/- 12 dB input gain range
- 4-segment LED ladders for monitoring output levels
- XLR and TRS Inpts and Outputs
- Internal Toroidal Transformer
- Frequency Repsonse of <10Hz to >50kHz
- Dynamic range of greater than 108dB
|Input Connectors||1/4" TRS, female XLR (pin 2 hot)|
|Input Type||Electronically balanced/unbalanced, RF filtered|
|Input Impedance||Balanced 40k ohm, unbalanced 20k ohm|
|Max Input||>+21dBu balanced or unbalanced|
|CMRR||>40dB, typically >55dB at 1kHz|
|Output Connectors||1/4" TRS, male XLR (pin 2 hot)|
|Output Type||Impedance-balanced/unbalanced, RF filtered|
|Output Impedance||Balanced 100 ohm, unbalanced 50 ohm|
|Max Output||>+21dBu balanced/unbalanced into 2k ohm or greater; >+18dBm balanced/unbalanced (into 600 ohm)|
|Bandwidth||20Hz to 20kHz, +0.5/-1dB|
|Frequency Response||<10Hz to >50kHz, +0.5/-3dB|
|Signal to Noise Ratio||90dB|
|Interchannel Crosstalk||<-80dB, 20Hz to 20kHz|
|Bypass Switch||Bypasses the graphic equalizer section in the signal path|
|Low cut Switch||Activates the 50Hz 12dB/octave high-pass filter|
|Range Switch||Selects either +/- 6dB or +/-12dB slider boost/cut range|
|Operating Voltage||100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz|
|Power Connector||IEC receptacle|
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