Sound System Equalizer Dbx1231 Dual-Channel Graphic Equalizer

Product Specifications

Prod Model:	1231
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Model Number:	1231
Type:	Dual Chanel 31-Band Equalizer
Input Connectors:	1/4" Trs, Female XLR (Pin 2 Hot), and Barrier Term
Input Type:	Electronically
Input Impedance:	Balanced 40 Kohm, Unbalanced 20 Kohm
Max Input:	>+21dbu Balanced or Unbalanced
Cmrr:	>40db, Typically >55db at 1kHz
Output Type:	Impedance-Balanced/Unbalanced, RF Filtered
Output Impedance:	Balanced 200 Ohm, Unbalanced 100 Ohm
Bandwidth:	20Hz to 20kHz, +0.5/-1db
Noise:	<95dB
Hi-Fi:	Hi-Fi
Operation Mode:	Button Control
Application:	Professional Performance
Certification:	SGS

Product Description

DBX1231 Professional 2 Channel Stereo Graphic Equalizer
Dbx 1231 Style Dual Channel 31-Band Equalizer
DBX style 1231 Equalizer(EQ-1231)
Dbx style1231 Dual Channel 31-Band Equalizer
Audio equalizer
Music equalizer
Sound equalizer

The dbx style 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other insightful features. These include 45 mm faders; Selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; Balanced inputs and outputs for quiet operation; And chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier.

Features;
--Switchable boost/cut ranges of ± 6 or ± 15 dB
--Electronically balanced/unbalanced inputs
--Servo balanced/unbalanced outputs
--RF filtered inputs and outputs
--XLR, Barrier Strip, and 1/4" TRS connectors
-- -12dB/+12dB input gain range
--18dB/octave 40Hz Bessel low-cut filter
--Chassis/signal ground lift capability
--Internal power supply transformer
--Power-off hardwire relay bypass with 2-second power-up delay

1231 Specifications
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, +0.5/-1dB
Frequency Response	<10Hz to >50kHz, +0.5/-3dB; +/-15dB range; +/-6dB range
Dynamic Range	109dB; 115dB
Signal to Noise Ratio	90dB, 97dB
THD+Noise	<0.005%
Interchannel Crosstalk	<-80db, 20Hz to 20kHz
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
Indicators	EQ Bypass (Red); Clip (Red); Low Cut (Red); +/-6dB (Yellow); +/-15dB (Red)
Operating Voltage	100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz
Power Consumption	24W
Power Connector	IEC receptacle
Dimensions	5.25" H X 19" W X 7.9" D (13.4cm x 48.3cm x 20.1cm)
Unit Weight	10.6 lbs.
Shipping Weight	11.6 lbs.