DSP2021B 2.4G Wireless Classroom Amplification System

Name: DSP2021B 2.4G Wireless Classroom Amplification System
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● Stylish and simple appearance design.
● Adopt PLL design, with infrared and wireless frequency pairing functions.
● Automatically search interference signals in the current environment, and actively avoid interference frequencies and select an ideal channel.
● Adopt international top high-performance audio processing chip, ultra-low distortion sound processing circuit design.
● Dynamic compression shunt technology, to shunt and load high and low frequencies automatically for the best performance.
● Adopt international advanced digital pilot technology and independent ID code design to prevent cross frequency.
● Easy to install and use.

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Introduction
Specification

The 2.4GHz wireless microphone system, designed for educational and professional audio applications, incorporates advanced digital processing for high sensitivity and reliable performance. It is powered by a 5V supply and offers a range of selectable channels to minimize interference. Additionally, it features harmonic adjustment to ensure optimal audio quality and clarity.

Model	DSP2021A DSP20221B
Receiver
Voltage	5V
Working Current (Peak)	80mA
Standby Current	0.1mA
Receiver Dimensions (W×D×H)	165×105×30.4mm
Receiver Net Weight	0.2kg
Transmitter
Digital Audio Part
Bit Depth	16Bit
Sampling Rate	48kHz
Frequency Response	100Hz-10kHz@±3dB
Distortion	<0.4%@94dBSPL, 1kHz
S/N Ratio	83dB
System Delay	15Ms
Full-Scale Input	190mVrms
Full-Scale Output	960mVrms
Input/Output Gain Ratio	14.1dB
RF Part
Frequency Selection Methood	Menu switching
Data Rate	2Mbps
Transmit Power	>10dBm
Maximum Working Distance	10M
Others
Charging	5V-800mA~2A power adapter
Operating Temperature	-20~60℃
Storage Temperature	-20~60℃

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