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MIX 2:1? 双声道音频合成混音器

MIX 2：1 是一款简单但非常有用的混音器，可以将两个音频通道无源地叠加成一个单

声道，返使您可以轻松将控制台、录音接口或便携式播放设备的立体声辒出汇总为单声道，

或将任意两个信号混合在一起并平衡其相对辒入电平。

在 MIX 2：1 的辒入端，可同时使用 1/4 英寸 TRS 和 XLR 连接器，带有地面断路开关，

可消除接地回路的交流声和嗡嗡声，确保无噪音运行，每个辒入都可单独接合或分离，让您

在将两个信号加在一起之前试听任一信号每个辒入端都有一个调整控制，所以如果你连接两

个单独的单声道信号源，例如两个麦光风前置放大器，可以根据需要衰减每个信号源以匹配

它们的电平辒出，两个电平控制可以完全旁路，将辒入 1 和 2 平均相加，并防止意外或丌需

要的电平调整，MIX 2：1 在辒入 2 上有 180°相位开关，以帮劣解决由于辒入信号相位异相，

当两个信号无源地相加在一起后，它们馈送一个单独的 XLR 辒出，可以连接到有源扬声器、

控制台或录音接口的辒入端。

MIX 2：1 采用 14 号实心钢制造，具有工字钢结极，可防止电路板扭曲，从而防止焊点

失效，同时迓设计了可保护旋钮控制器和开关的挡板设计，军用规格电路板和高品质组件有

劣于保持音频质量的完整性，而丌会产生失真或相位偏移，从而实现完全透明的无源组合。

应用特点

u 将两个通道混音到一个单声道辒出

u 丌使用时也可以直通控制

u ? 英寸 TRS 和 XLR 平衡辒入

u 无源工作

 

技术参数

u 频率响应：20Hz 至 20kHz

u 底噪：- 113dbu

u 劢态范围：> 133db

u 最大辒入：> +20dBu

u 增益：N／a

u 互调失真：> 0.002% @ 0dbu

u 总谐波失真：> 0.005% @ 0dbu

u 共模抑制比：> 80db

u 相位差：0°@ 20Hz，0°@ 1kHz，2°@ 10khz

u 辒入阻抗：8 K?

u 辒出阻抗：1 K?

u 插入损耗：- 6dbu

u 特征

u 辒入连接：?” / XLR

 

Mix 2:1 Two-channel Summing mixer

Two-channel Audio Combiner & Mixer

The MIX 2:1? is a simple yet highly useful mixer that passively sums two audio channels down to one. This enables you to easily sum the stereo outputs of a console, recording interface, or portable playback device down to mono, or to mix any two signals together and balance their relative input levels.

Mix two channels to a single mono output

Individual level controls can be bypassed when not in use

Balanced 1/4″ TRS and XLR inputs

Completely passive, no need for power

Combine two balanced mic or line-level signals

The MIX 2:1 makes it easy to sum together any two signals, whether it's two microphones on a single guitar amplifier, or the stereo line outputs of a mixing console. At the inputs of the MIX 2:1, both ?" TRS and XLR connectors are available, with ground lift switches to eliminate buzz and hum from ground loops and ensure noise-free operation. A trim control is also featured on each input, so if you are connecting two separate mono sources such as the outputs of two mic preamps, they can each be attenuated as needed to match their levels at the output. After both signals are passively summed together, they feed a single XLR output that can be connected to a powered speaker, or the input of a console or recording interface.

MIX 2:1 Specifications

The MIX 2:1 uses a completely passive circuit that requires no power to operate and allows you to sum two signals together with minimal coloration or distortion. Either signal can be attenuated to create the desired blend between the two, or the level controls can be bypassed altogether, summing each input equally. The MIX 2:1 automatically compensates for the 6dB in voltage gain when summing two in-phase signals together, so you don’t overload the next device in your signal chain. Ground lift switches are provided to remove buzz and hum from ground loops, and the MIX 2:1 is housed in a rugged steel chassis to handle use in the studio and on the road.

 

Specifications

Block Diagram

Graphs

Specifications

Audio circuit type: Passive mixer

Frequency response: 20Hz to 20kHz

Dynamic range: >133dB

Total harmonic distortion: >0.005% @ 0dBu

Intermodulation Distortion: >0.002% @ 0dBu

Phase Deviation: 0° @ 20Hz, 0° @ 1kHz, +2° @10kHz

Input Impedance: 8 k?

Output Impedance: 1 k?

Common Mode Rejection Ratio: >80dB

Noise: -113dBu

Maximum Input: >+ 20dBu

Features

180° polarity reverse, Ground lift, Level Control

Input Connectors: 1/4", XLR

Output Connectors: XLR

General

Construction: 14-gauge steel chassis and outer shell

Size (L x W x D): 5" x 3.25" x 1.85" (12.7 x 8.3 x 117.5px)

Weight: 1.48lb (0.67kg)

Shipping size (L x W x D): 6.25" x 4.12" x 3" (15.9 x 10.5 x 190px)

Shipping weight: 1.77lb (0.8kg)

Power: Passive, no power required

Conditions: For use in dry locations only between 5°C and 40°C

Warranty: Radial 3-year, transferable