Guangzhou Sounord Electronics

Co., Ltd.


Add: 46 Shangcun Road, Songbei, Baiyun District, Guangzhou City, Guangdong Province




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EPY-300 Digital Processing Audio Power Amplifier

Product description
Detailed parameters
● This machine adopts unique high-speed DSP digital floating-point computing technology, built-in adaptive feedback suppression (AFC), background noise reduction (ANC), automatic gain (AGC), power amplifier and other functions in one integrated high-intelligence speech processing system;
● Adaptive environment howling suppression algorithm, high-speed floating-point digital audio processor and advanced sub-Band echo cancellation (Echo Cancellation) technology, can automatically eliminate whistle and echo at high speed and fully enable live audio Accurate and clear real-time delivery, you can switch through "feedback / pass-through";
● Built-in automatic pressure limiter, adjust the total output level through COMPRESS, when the multi-microphone is used at the same time, it can prevent the feedback due to the increase of the gain of the whole system;
● Built-in adaptive dynamic noise filter can filter out the background noise of the scene environment without affecting the high quality transmission of voice signals;
● Built-in system intelligent level control technology, can obtain clear, continuous voice signal with no obvious fluctuation of signal level, AGC bidirectional control, with the ability to distinguish between enhanced signal and soft signal;
● Microphone high and low pass filters, 10-band graphic equalizer, auxiliary adjustment tone and feedback howling point;
● Built-in automatic mixing function, four choices of microphone smart;
● This machine has four channels of microphone input (48V phantom power), two sets of stereo line input, one set of stereo line output, one set of auxiliary recording output, A and B group power output, reserved digital, 2.0USB input interface;
● Keyboard lock function: When the administrator debugs the device, the panel keys are locked to prevent non-administrators from operating;
● It can be connected to the computer PC interface through the USB of this machine, and supports 232 central control adjustment;
● Adapted to language, sound reinforcement systems such as teaching, conference, speech, trial, recording and broadcasting.
Corresponding parameter set not found, please add it in property template of background

Microphone input

4 way (Phoenix plug)

Microphone powered

48V phantom power

Microphone input level


Audio input

RCA stereo input 2 groups

Recording output

RCA stereo output 2 groups (independent volume)

Control interface

1 RS-232 interface, 1 USB interface


2X100W/ 8Ω,150W/4Ω

Amplifier input sensitivity


Frequency response


Signal to noise ratio

≥100Db (unweighted)

Sound gain boost

8- 12dB

Background noise reduction

Increase system signal ratio ≥20dB

Automatic gain control amplitude


Power supply


Size (DxWxH)


Net weight



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