DBX 1231 Dual 31-Band Graphic Equalizer USED

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PRICE DOES NOT INCLUDE VAT IN VERY GOOD WORKING CONDITION   1231 Dual 31-Band Graphic Equalizer The dbx? 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, +/- […]

 

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PRICE DOES NOT INCLUDE VAT

IN VERY GOOD WORKING CONDITION

 

1231 Dual 31-Band Graphic Equalizer

The dbx? 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.

The dbx 12 Series Equalizers were precision engineered to provide years of maintenance-free operation in any application. The magnetically isolated transformer, electronically balanced/unbalanced inputs and servo balanced/unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire relay bypass with 2 second power up delay were steps our engineers took to ensure compatibility for all installations. Only the best components were utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR (ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail is contained in a 3U steel/aluminum chassis.

SPECIFICATIONS:

 

 INPUT

Connectors:

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

Type:

Electronically balanced/unbalanced, RF filtered

Impedance:

Balanced 40 kOhm, unbalanced 20 kOhm

Max Input Level:

>+21dBu balanced or unbalanced

CMRR:

>40dB, typically >55dB at 1kHz

OUTPUTS

Connectors:

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

Type:

Impedance-balanaced/unbalanced, RF filtered

Impedance:

Balanced 200 ohm, unbalanced 100 ohm

Max Output Level:

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

SYSTEM PERFORMANCE

Bandwidth:

20Hz to 20kHz, +0.5/-1dB

Frequency Response:

50kHz, +0.5/-3dB

 

+/-15dB range

+/-6dB range

Dynamic Range:

109dB

115dB

Signal-to-Noise:

90dB

97dB

THD + Noise:

Weight 4.00 kg

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