อีควอไลเซอร์ dbx รุ่น 1231 (มหาจักร) EQUALIZER

dbx 1231 Dual Chanel 31-Band Equalizer
- 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

- 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

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)
10.6 lbs.
Shipping Weight
11.6 lbs.