1231双通道31-Band均衡器
这机器已经很多年了，但目前还有新品卖，
官网售价399美元
天猫卖3000（淘宝或闲鱼则只需几百元）
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. dbx®12系列设计用于满足最苛刻的声音增强环境的需求,同时提供简单的直接控制。 1231提供了标准的功能,如双通道,31 1/3倍频程带,ISO频率中心,+ / - 12 dB输入增益范围,并可切换的40 hz /每八度18分贝低胸过滤器,还包括其他的特性。 这些包括45毫米的投篮; 选择+ / 6 db或+ / -15分贝增加/减少范围精确增益调整; XLR阻隔带,1/4 " TRS连接器安装方便; 安静的平衡输入和输出操作; 和底盘/信号快速哼隔离地面提升能力。 dbx 12系列的有远见的设计使您的工作更加轻松。 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.
dbx 12系列均衡器精密工程提供年免费维修操作的任何应用程序。 磁隔离变压器、电子平衡/不平衡输入和伺服平衡不平衡输出,RF-filtered输入和输出,断电实线与2秒启动延时继电器绕过步骤我们的工程师把所有设施,以确保兼容性。 只有最好的组件是利用,产生10赫兹至50 khz的频率响应,大于90分贝信噪比(ref + 4 dbu),低于0.005% (THD +噪声(1 khz + 4 dbu)和信道间的串扰的小于-80分贝20 hz 20 khz。 所有这些关注细节都包含在一个3 u钢/铝底盘。 - 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
Documentation
SpecificationsInput 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. |
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发表于 2019-5-23 20:02:31
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