Equalizer DBX 2231 Dual 31 Band Profesional Graphic Equalizer Features :
Input
- Connectors: 1/4 inch TRS, female XLR (pin 2 hot), and barrier terminal strip
- Type: Electronically balanced/unbalanced, RF filtered
- Impedance: Balanced 40k ohm, unbalanced 20k ohm
- Max Input Level: >+21dBu balanced or unbalanced
- CMRR: >40dB, typically >55dB at 1kHz
Outputs
- Connectors: 1/4 inch TRS, male XLR (pin 2 hot), and barrier terminal strip
- Type: Impedance-balanaced/unbalanced, RF filtered
- Impedance: Balanced 200 Ohms, unbalanced 100 Ohms
- Max Output Level: >+21dBu balanced/unbalanced into 2k or greater >+20dBm balanced/unbalanced (into 600 Ohms)
System Performance
- Bandwidth: 20Hz to 20kHz, +/-0.5dB
- Frequency Response: <10Hz to >50kHz, +0.5/-3dB
- Noise Reduction In (+/-6 and +/-12dB range):
- Signal-to-Noise: >102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
- Dynamic Range: >120dB, unweighted
- Noise Reduction Out: (+/-6dB range):
- Signal-to-Noise: >94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth
- Dynamic Range: >112dB, unweighted
- Noise Reduction Out (+/-12dB range):
- Signal-to-Noise: >90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth
- Dynamic Range: >108dB, unweighted
- THD + Noise: <0.04%, 0.02% typical at +4dBu, 1kHz
- Interchannel Crosstalk: <-80dB, 20Hz to 20kHz
- Noise Reduction: Up to 20dB of dynamic broadband noise reduction
Function Switches
- Type III NR: Activates dbx Type III Noise Reduction
- EQ Bypass: Bypasses the Graphic Equalizer section in the signal path
- Low Cut (recessed): Activates the 40Hz 18dB/octave Bessel high-pass filter
- Range (Recessed): Selects either +/- 6dB or +/-15dB slider boost/cut range
Indicators
- Output Level Meter: 4-LED bar graph (Green, Green, Yellow, Red) at -10, 0, +10, and +18dBu
- Gain Reduction Meter: 4-LED bar graph (all Red) at 0, 3, 6, and 10dB
- Type III NR Active: Yellow LED
- EQ Bypass: Red LED
- Clip: Red LED
- Low Cut Active: Red LED
- +/-6dB range: Yellow LED
- +/-12dB range: Red LED
Power Supply
- Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz 230VAC 50/60Hz
- Power Consumption: 23 watts
- Mains Connection: IEC receptacle
Equalizer DBX 2231 Dual 31 Band Profesional Graphic Equalizer
Equalizer DBX 2231 Dual 31 Band Profesional Graphic Equalizer