31밴드 스테레오
기능:바이패스 / 저음컷트 / 레인지 변환
사이즈:3구랙사이즈 무게:4킬로그램
그런대로 퀄리티 괜찮고, 잘먹힘.

1231은 1215와 같은 기능을 보유하고 있으며, 2개의 31 1/3 옥타브 밴드 채널 이퀄라이저로,  +-6dB과 +-15dB 사이에서 바뀔 수 있는 부스트/컷 기능과, +-12dB 입력 게인 범위를 보유하고 있으며, 18dB/octave 40Hz Bessel low-cut 필터를 내장하고 있으며,   XLR, 베리어 트립과 1/4” TRS 커넥터를 포함하고 있습니다.

1231
Input Connector	1/4" TRS, female XLR (pin 2 hot), and barrier terminal strip
Input Impedance	Balanced 40 k Ohm, unbalanced 20 k Ohm
Maximum Input Level	+21 dBu balanced or unbalanced
Outputs Connector	1/4" TRS, male XLR (pin 2 hot), and barrier
Frequency Response	20 Hz to 20 kHz, +0.5/-1dB
Thd + Noise	<0.005%
Interchannel Crosstalk	<-80 dB, 20 Hz to 20 kHz
Dimensions	8.9(H) × 48.3(W) × 20.1(D) cm
Weight	3.9 kg

 

Dual Channel 31 Band 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 2U steel/aluminum chassis. It’s no wonder that dbx has been a leader in the industry for over 25 years.
Features


* Switchable Boost/Cut range between ±6dB and ±15dB

* 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


dbx 1231 Specifications INPUTS


Connectors: 1/4" 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" TRS, male XLR (pin 2 hot), and barrier terminal strip
Type: Impedance-balanced/unbalanced, RF filtered
Impedance: Balanced 200 ohm, unbalanced 100 ohm
Max Output Level: >+21dBu balanced/unbalanced into 2k ohm or greater
>+18dBm balanced/unbalanced (into 600 ohm)

SYSTEM PERFORMANCE
Bandwidth: 20Hz to 20kHz, +0.5/-1dB
Frequency Response: <10Hz to >50kHz, +0.5/-3dB +/-15dB range +/-6dB range
Dynamic Range: 109dB 115 dB
Signal-to-Noise: 90 dB 97dB
THD+Noise: <0.005%

FUNCTION SWITCHES
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
EQ Bypass: 1 LED: Red
Clip: 1 LED: Red
Low Cut: 1 LED: Red
+/-6dB: 1 LED: Yellow
+/-15dB: 1 LED: Red

POWER SUPPLY
Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz
230VAC 50/60Hz
Power Consumption: 24W
Mains Connection: IEC receptacle

PHYSICAL
Dimensions: 3.5" H X 19" W X 7.9" D (8.9cm x 48.3cm x 20.1cm)
Weight: 8.5 lbs. (3.9 kg)
Shipping Weight: 9.5 lbs. (4.3 kg)