Product Name: Anti howling Suppression Processor

Product model: DF1

Product information:

The specialized digital anti howling system equipment for professional audio can effectively suppress howling and meet various environmental feedback suppression functions; Expand volume; Ensure the quality of voice transmission, high fidelity, and clear sound. Even in poor environmental conditions, it can greatly suppress echo; Can effectively prevent the burning of audio equipment and speakers; Equipped with a microphone balanced input powered by six phantom channels, as well as system connection ports, dual channel input and output interfaces. As needed, it can be extended and connected in series to form a large-scale anti howling conference system
Parameters:
Input impedance balance: 20 K Ω
Output impedance balance: 100 Ω
Co simulation ratio>70dB (1KHz)
Input range ≤+20 d B u
Frequency response 15Hz-25KHz (-0.3dB)
Signal to noise ratio>110dB
Distortion<0.01% OUTPUT=0dBu/1KHz
Channel separation degree>80dB (1KHz)
Howling search and suppression method fully automatic notch filter
Signal input frequency response 20Hz-30kHz ± 0.5dB
24 independent filters per channel
Minimum bandwidth 1/27th Octave
Maximum bandwidth 1/14th Octave
Frequency resolution of 0.5 Hz
Screaming search time 0.1-0.5S
FFT length 2048
Sound transmission gain 6-10 dB
System gain 0dB
Compression startup level: -40dB~+20dB Compression ratio: 1:1.0~1:20.0 Response time: 10-200ms Recovery time: 50ms~5000ms
Voltage limit starting level: -40dB~+20dB Response time: 10-200ms Recovery time: 50ms~5000ms
Noise gate -120dB~-40dB
The display adopts a male display screen with a resolution of 144X32, providing 6-segment LED display output levels
Processor 96KHz sampling frequency, 32-bit DSP processor, 32-bit A/D and D/A conversion
Power supply AC110V~240V 50/60Hz
Power consumption<20W
Chassis adapter height 1U
Product dimensions (W × D × H) 482 × 148 × 44mm
Net weight 2.3kg
Transportation dimensions (W × D × H) 1PC: 553 × 296 × 98mm/0.0160m3 6PCS: 566 × 309 × 628mm/0.1098m3
Gross weight 1PC: 4.3 (kg) 6PCS: 30 (kg)