MA-2S多功能话筒及音频混合放大器 Multifunctional Microphone and Audio Mixing Amplifier

本机特点：

1、麦克风及音乐放大后可独立输出，也可以混合输出，总共有三个输出口，混合输出口可以直接驱

动耳机听。

2、3.5mm接口带偏压可用驻极体及常见的电容麦克风，6.5mm接口为动圈麦克风，可以放大有线

及无线麦克风。

3、动圈麦克风6.5接口放大75倍(37db)，3.5接口电容麦放大22倍(26db)，立体声音乐输入3.5接口接

口放大5倍(14db)。

供电为直流5-12V，电压尽量高点，有利于动态范围。

接口及旋钮说明：

1、audio in： 3.5mm立体声音频输入，如：MP3、手机音乐、电脑音乐、等.........

2、audio out：3.5mm立体声音频线路输出，接其他音频设备线路输入，不能接耳机听；

3、out： 3.5mm接口，音乐及麦克风声音混合输出，可接有源音响、功放等或者耳机;

4、mic out： 3.5mm接口，麦克风信号线路输出口，接其他音频设备线路输入，不能接耳机听;

5、DC12v： 供电接口5V到12V之间，接口型号5.5*2.1,内正外负；

6、mic in： 6.5mm动圈与3.5mm电容两种麦克风接口;

7、mic vol： 麦克风音量调节旋钮，同时也可以完全关闭音量;

8、audio vol：音乐伴奏音量大小调节旋钮，同时也可以完全关闭音量;

Features of this device:

The amplified microphone and music signals can be output independently or in a mixed way. There are a total of three output ports. The mixed output port can directly drive headphones for listening.

The 3.5mm interface with bias voltage can be used for electret and common condenser microphones. The 6.5mm interface is for dynamic microphones and can amplify both wired and wireless microphones.

The 6.5mm interface for dynamic microphones provides a 75-fold amplification (37dB). The 3.5mm interface for condenser microphones offers a 22-fold amplification (26dB). The 3.5mm stereo music input interface has a 5-fold amplification (14dB).

The power supply is DC 5 - 12V. A relatively higher voltage is beneficial for the dynamic range.

Explanation of Interfaces and Knobs:

Audio in: 3.5mm stereo audio input, such as MP3, music from mobile phones, music from computers, etc.

Audio out: 3.5mm stereo audio line output. It is used to connect to the line input of other audio devices and cannot be used to connect headphones for listening.

Out: 3.5mm interface. It is for the mixed output of music and microphone sounds and can be connected to active speakers, power amplifiers, etc. or headphones.

Mic out: 3.5mm interface. It is the line output port for microphone signals and is used to connect to the line input of other audio devices and cannot be used to connect headphones for listening.

DC12v: Power supply interface with a voltage range between 5V and 12V. The interface model is 5.5 * 2.1, with the positive pole inside and the negative pole outside.

Mic in: Interfaces for both 6.5mm dynamic and 3.5mm condenser microphones.

Mic vol: The knob for adjusting the volume of the microphone. It can also be used to completely turn off the volume.

Audio vol: The knob for adjusting the volume of the music accompaniment. It can also be used to completely turn off the volume.