D6576 Professional Automatic Feedback Suppressor

Name: D6576 Professional Automatic Feedback Suppressor
Brand: Guangzhou DSPPA Audio Co., Ltd.

Features

● 2 line/microphone inputs, 2 line/microphone outputs.
● Built-in high-performance, high-speed floating-point digital signal processor (DSP), featuring adaptive feedback notch processing algorithms and frequency-shifting technology for feedback suppression.
● The front panel features 4 × 7-segment real-time level indicators for precise monitoring of input and output signal levels, along with a 48V phantom power indicator.
● The panel has quick buttons for channel mute, bypass and filter reset.
● Each input has 41 adaptive notch filters, and the number of dynamic/fixed filters can be configured as needed.
● TCP/IP control protocol, connect to PC to control and adjust various detailed parameters on the web page.
● Supports multi-level analog volume adjustment (0dB ~ +42dB).

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Introduction
Specification

The product is a high-quality professional feedback suppressor (adaptive feedback notch processing) equipped with 2 (balanced) analog inputs and 2 (balanced) analog outputs. The product has built-in DSP functions such as adaptive notch filter, frequency shifting for feedback suppression, noise gate, compressor, analog gain control, mute, 48V phantom power, 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.

Model	D6576
Digital Signal Processing
DSP Chip	40-bit floating-point SHARC DSP, 400 MHz
D/A Conversion	24-bit
Sampling Rate	48 kHz
Analog Audio Input & Output
Input Channels	2 balanced inputs
Audio Connectors	XLR balanced input/output; 6.35 mm TRS balanced input/output
Input Impedance	3 kΩ
Maximum Input Level (1% THD)	20 dBu
Maximum Output Level (1% THD)	20 dBu
Output Channels	2 balanced outputs
Output Impedance	100 Ω
Audio Performance
Frequency Response	20 Hz–20 kHz(±1 dB)
THD+N (@ 1 kHz, 0 dBV)	＜ 0.004%
Signal-to-Noise Ratio (20 dBu)	117 dB (A-weighted)
Connectivity
TCP/IP Network Port	RJ-45
RS232	3-pin pluggable terminal block
RS485	3-pin pluggable terminal block
Electrical & Physical Specifications
Power Supply	AC 100V–240V, 50/60 Hz
Power Consumption	≤10 W
Product Dimensions	432.5 × 186 × 44 mm
Product Weight	2.35 kg
Operating Temperature	−20°C to +50°C