Guangzhou DSPPA Audio Co., Ltd.
Tel: 020-28346138
Fax: 020-81305947

D6576 Professional Automatic Feedback Suppressor


● Sensitivity level: -26dBFS
● 2 inputs for line/microphone, along with 2 outputs for line/microphone
● Embedded with advanced high-speed floating-point digital signal processor and adaptive feedback notch processing algorithm technology
● The front panel includes 4*8-segment real-time level display indicators for accurate visualization of input/output signal levels
● Convenient buttons on the panel for muting channels, bypassing, and resetting filters
● Each input is equipped with 15 adaptive notch filters, which can be configured with dynamic/fixed filters as required
● Utilizes TCP/IP control protocol for PC connectivity, enabling control and adjustment of various parameters via a web page
● Supporting multi-level analog volume adjustment ranging from -18dBV to 12dBV.

  • Introduction
  • Specification

The D6576 product is a high-quality professional automatic feedback suppressor (adaptive feedback notch processing) equipped with 2 (balanced/unbalanced) analog inputs and 2 (balanced/unbalanced) analog outputs. The product has built-in DSP functions such as adaptive notch filter, noise gate, analog volume adjustment, mute, bypass pass-through, etc. The device can be controlled via RJ45 driver-free connection to a computer web page, making it suitable for use in various occasions.



Digital Signal Processing

DSP Chip

40-bit floating-point SHARC DSP 450MHz

Digital-Analog Conversion


Sampling Rate


Analog Audio Input and Output

Input Channel

2 inputs (balanced/unbalanced)

Audio Interface

XLR balanced input and output, single-ended (RCA) unbalanced input and output

Input Impedance


Max. Input Level (1% Distortion)


Max. Output Level (1% Distortion)


Output Channel

2 outputs (balanced/unbalanced)

Output Impedance


Frequency Response




Audio Performance

Frequency Response




SNR (0dBV)


Connection & Display

TCP / IP Port



COM Interface

Electrical Physical Parameters

Power Supply Range

AC100V---240V 50/ 60Hz


432.5mm X 186mm X 44mm

Power Consumption


Net Weight


Working Temperature


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