美国dbx:1231 双31段图示均衡器_周边,处理器,均衡器尽在香港百利恒国际有限公司

产品类别：均衡器

产品名称：美国dbx:1231 双31段图示均衡器

产品价格：面议
关键词：周边,处理器,均衡器
产品说明：香港百利恒国际有限公司提供美国dbx:1231 双31段图示均衡器产品信息,包括美国dbx:1231 双31段图示均衡器产品详细介绍,美国dbx:1231 双31段图示均衡器产品参数，3D图库等信息，显示的美国dbx:1231 双31段图示均衡器图仅为参考,购买请以美国dbx:1231 双31段图示均衡器实物为准.

美国dbx:1231 双31段图示均衡器技术参数

dbx 1231 双31段图示均衡器

双31段图示均衡器:可选择的提升/衰减范围:±6dB和±15dB，电子平衡/非平衡输入，伺服式平衡/非平衡输出，输入和输出均设有射频滤波器XLR，排状接线端子和1/4"TRS接口，-12dB/+12dB输入增益范围，18dB/倍频程的40Hz贝塞尔式低频切换滤波器，机箱/信号接地悬浮能力，内置式电源供电，关闭电源的硬线中继旁路及2秒的加电延时

输入

接口: 1/4寸TRS，XLR插座（二脚为热正端，母头，）以及条状接线端子

类型: 电平衡/非平衡，带射频滤波

阻抗: 平衡为40kΩ，非平衡为20 kΩ

最大输入电平: >+21dBu，平衡或非平衡

共模拟制比: >40dB，典型值>55dB，1KHz

输出

接口: 1/4寸TRS，XLR插座（二脚为热正端，每头），以及条状接线端子

类型: 阻抗平衡/非平衡式，带射频滤波

阻抗: 平衡为200Ω，非平衡为100Ω

最大输入电平: >+21dBu，平衡/非平衡2kΩ负载或更大负载

共模拟制比: 18dBu，平衡/非平衡（接600Ω负载）

系统性能

频带宽度: 20Hz-20KHz，+0.5dB/-1DB

频率响应

动态范围: 109dB 115dB

信噪比: 90dB 97dB

总谐波失真+噪声: <0.005%

通道间串音: <-80dB，20Hz-20KHz

功能开关

均衡旁路: 将信号通路中的图示均衡部分旁路掉

低频切换（隐蔽式）: 启动40Hz 18dB/oct贝塞尔高通滤波器

范围（隐蔽式）: 选择±6dB或±15dB的推子提升/衰减范围

指示灯

输出电平: 4-LED条状图示指示灯（绿、绿、黄、红）分别对应-10,0，+10和+18dBu

均衡旁路: 一个LED: 红色削波指示: 一个LED；红色

低频切换: 一个LED: 红色 +/6dB；一个LED；黄色

±15dB: 一个LED: 红色

电源:

工作电压: 230VAC 50Hz

功率消耗: 24W

电源接口: IEC插头

尺寸和重量:

1231: （高13.4cm×宽48.3cm×深20.1cm）直观化的设计

dBx12系列能够满足大部分扩声工程的需求，它具备简单而直观的控制。1231是：双通道，31段1/3倍频程的均衡。而1215是：双通道，15段2/3倍频程。个频段的中心频率均符合ISO国际认可的规格，+/-12dB输入增益调整范围，以及可切换的40Hz/18dB倍频程低通滤波器。其他各种特性还包括45mm推子；可选择的+/-15dB提升/衰减范围，以便进行更精确的增益调整；XLR，排壮接线端子和1/4"TRS平衡接口，以适应各种安装需要；用于低噪声工作的平衡式输入和输出；以及消除交流噪声的机箱/信号接地悬浮功能。12系列直观化的设计令操作更加容易。

革新性的技术

dBx12系列均衡器具有精密的工艺技术，针对各种长期应用而免维护的性能，磁场隔离变压器，电子平衡/非平衡输入和伺服式平衡/非平衡输出，输入和输出均设有射频滤波器，以及关闭电源的硬线中继旁路和2秒的加电延时，从而使工程师能保证各种安装的兼容性。产品在生产上只选用最佳的元器件，故有10Hz至50KHz的频率响应，大于90dB的信噪比（参考电平为+40），小于0.005%的总谐波失真+噪声（1kHz在+4dBu），和从20Hz至20kHz大于-80dB的通道间串音。所有这一切功能均包含在一个3u/2u的钢质/铝质机箱内。这一切不容质疑的因素就是雄拒该领域25年以上的原因。

性能

可选择的提升/衰减范围：+/-6dB和+/-15dB

电子平衡/非平衡输入

伺服式平衡/非平衡输出

输入和输出均设有射频滤波器

XLR，排状接线端子和1/4"TRS接口

-12dB/+12dB输入增益范围

18dB/倍频程的40Hz贝塞尔式低频切换滤波器

机箱/信号接地悬浮能力

内置式电源供电

关闭电源的硬线中继旁路及2秒的加电延时

Dual 31-Band Graphic Equalizer

Dual-channels. 31 1/3 octave bands. ISO frequency centers. +/- 12 dB input gain range.

The dbx12 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 in. 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 dbx12 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. 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 in. 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

Technical Info

Inputs

Connectors: 1/4 in. TRS, female XLR (pin 2 hot), and barrier terminal strip

Type: Electronically balanced/unbalanced, RF filtered

Impedance: Balanced 40k Ω, unbalanced 20k Ω

Max Input Level: >+21dBu balanced or unbalanced

CMRR: >40dB, typically >55dB at 1kHz

Outputs

Connectors: 1/4 in. TRS, male XLR (pin 2 hot), and barrier terminal strip

Type: Impedance-balanced/unbalanced, RF filtered

Impedance: Balanced 200 Ω, unbalanced 100 Ω

Max Output Level: >+21dBu balanced/unbalanced into 2k Ω or greater

>+18dBm balanced/unbalanced (into 600 Ω)

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 in. H X 19 in. W X 7.9 in. D (8.9cm x 48.3cm x 20.1cm)

Weight: 8.5 lbs. (3.9 kg)

Shipping Weight: 9.5 lbs. (4.3 kg)

Note: Specifications subject to change.