Top quality 1:1 dbx 231 Dual 31-Band Graphic EQ Graphic Equalizer for sound performance enhancement

Input Connectors

1/4" TRS, female XLR (pin 2 hot),and barrier terminal strip

Input Type

Electronically balanced/unbalanced, RF filtered

Input Impedance

Balanced 40 kOhm, unbalanced 20 kOhm

Max Input

>+21dBu balanced or unbalanced

CMRR

>40dB, typically >55dB at 1kHz

Output Connectors

1/4" TRS, male XLR (pin 2 hot),and barrier terminal strip

Output Type

Impedance-balanced/unbalanced, RF filtered

Output Impedance

Balanced 200 ohm, unbalanced 100 ohm

Max Output

>+21dBu balanced/unbalanced into 2 kOhm or greater; >+18dBm balanced/unbalanced (into 600 ohm)

Bandwidth

20Hz to 20kHz, +/-0.5dB

Frequency Response

<10Hz to >50kHz, +0.5/-3dB

Signal-to-Noise (NR In: +/-6 and +/-15dB ranges)

>102dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth

Dynamic Range (NR In: +/-6dB and +/-15dB ranges)

>120dB, unweighted

Signal-to-Noise (NR Out: +/-6dB range)

>94dB, unweighted, ref: +4dBu, 22kHz measurment bandwidth

Dynamic Range (NR Out: +/-6dB range)

>112dB, unweighted

Signal-to-Noise (NR Out: +/-15dB range)

>90dB, unweighted, ref: +4dBu, 22kHz measurement bandwidth

Dynamic Range (NR Out: +/-15dB 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

NR Switch

Activates dbx Type III Noise Reduction

Bypass Switch

Bypasses the graphic equalizer section in the signal path

Low cut Switch

(recessed) Activates the 40Hz 18dB/octave Bessel high-pass filter

Range Switch

(recessed) Selects either +/- 6dB or +/- 15dB slider boost/cut range

I/O 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

Indicators

NR Active (Yellow); EQ Bypass (Red); Clip (Red); Low Cut (Red); +/-6dB (Yellow); +/-15dB (Red)

Operating Voltage

100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz

Power Consumption

28W

Power Connector

IEC receptacle

Dimensions

5.25" H X 19" W X 7.9" D (13.335cm x 48.3cm x 20.1cm)