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Dual Channel 31-Band Equalizer - 231

Audio Tools

Dual Channel 31-Band Equalizer - 231

Model: 231
Manufacturer: AIFA Professional

AifaPro 231

Dual Channel 31-Band Equalizer

AifaPro 231

With a lineage extending back to the revered 12 and 20 Series graphic equalizers, the AifaPro 231 easily lives up to the AifaPro reputation at a price point which can find a home in the tightest of budgets. Besides including two 31-band channels of 1/3-octave equalization, the 231 also offers ±6 or ±12 dB boost/cut range; XLR, 20mm faders and 1/4" inputs; nonconductive nylon sliders; and an intuitive user interface with comprehensive output and gain reduction metering. As always, the inevitable result of our meticulous attention to detail and top-quality componentry is exceptional sound, performance, and reliability.

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 and 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 AifaPro signal processors that are the Professional's Choice. With such affordable quality, there's no longer any excuse for compromising your sound.

• 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
• Dynamic Range: 108dB
• Signal to Noise Ratio: 90dB
• THD+Noise: <0.004%
• 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 Consumption: 15W
• Power Connector: IEC receptacle

AifaPro 231
Dual Channel 31-Band Equalizer

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