2231 Equalizer Anti-Feedback Audio Performance Stage Conference Effects Processor Noise Reduction...

1. Frequency range: 20Hz20kHz ±0.5dB, 600 ohms
2. Total harmonic distortion: <0.05% (THD+N), 20Hz20kHz, 600 ohms with equalizer flat
3. Hum and noise (average impedance: 600 ohms, BPF: 20Hz-20kHz): -96dB with equalizer curve flat (0dB)
4. Equalization control: 31 bands, 1/3 octave
5. High-pass filter: 12dB/octave (20-200Hz x 30dB point)
6. Peak Indicator (LED Display): Red LED illuminates when rear equalizer limit level peak exceeds 3dB on any channel
7. Power requirements: 110-250V
8. Power consumption: 25W
9. Inputs:
- Connectors: 1/4 inch TRS (female), XLR (pin 2 as line)
- Type: electronically balanced/unbalanced with RF filtering
- Impedance: balanced: 40k ohm; unbalanced: 20k ohm
- CMRR: >40 dB, typical >55 dB (1 kHz)
10. Output:
- Connectors: 1/4 inch TRS (male), XLR (pin 2 hot)
- Type: Impedance balanced/unbalanced, with RF filtering
- Impedance: 200 ohm balanced; 100 ohm unbalanced
- Maximum output level: >+21dBu balanced/unbalanced (into 2k hm or greater load)

Features:
1. Suitable for radio stations/recording studios/large-scale projects/live performances
2. Streamlined system wiring, powerful functionality, user-friendly operation
3. Built-in limiter protects speakers from overload or enables special sound effects processing
4. Switchable +/-6dB or +/-12dB boost/cut range
5. Front-panel bypass switch
6. 4-segment LED ladder display for monitoring output level
7. Signal dynamic range exceeding 108dB
8. 12dB per octave low-cut filter at 40Hz
9. +/-12dB input gain adjustment range
10. XLR and TRS input/output connectors
11. Frequency response: 10Hz-50kHz