DAP4*4

Описание

1. Analog Input Channels: 4
2. Analog Output Channels: 4
3. Processor: ADI SHARC 21489@450 MHz SIMD (Single Instruction Multiple Data)
4. DSP Processing Capacity: 400 MIPS (Million Instructions Per Second), 1.6 GFLOPS (Giga Floating-point Operations Per Second)
5. Sampling Rate: 48 kHz, ± 100 ppm (parts per million)
6. THD+N: 0.002% @+4dBu
7. Input Dynamic Range: 110dB
8. Output Dynamic Range: 110dB
9. 1 Channel of RS232
10. Built-in USB sound card, supporting music playback, recording and soft video conferences (e.g.: ZOOM, Tencent Meeting, DingTalk Meeting, etc.)
11. Bus-type AEC (Acoustic Echo Cancellation): Tail Time: 512ms, Convergence Rate: 60dB/S, Echo Cancellation Amplitude: 60dB
12. Independent Channel AFC (Acoustic Feedback Cancellation) with notch algorithm, Sound Transmission Gain Improvement: 10dB
13. ANS (Automatic Noise Suppression), SNR Improvement: 18dB
14. 8-band British Parametric EQ, providing 5 filter options: Parametric, Lowshelf, Highshelf, Lowpass, Highpass
15. Customizable operation interface for end users, supporting management of up to 30 devices on a single interface
16. Equipped with central control function, enabling overall control of power supply, signal switching, environment control, audio, etc. in the system, and one-click activation of required system functions

**Requirements**
1. A customizable user operation interface shall be provided
2. A built-in USB sound card is required, supporting recording & broadcasting and remote meetings
3. The processor chip adopts ADI architecture with no less than 40-bit DSP floating-point operation engine
4. The number of analog input and output channels is not less than 4×4
5. Input and output quantization is not less than 48KHz/24bit

**Input Channel Specifications**
1. No less than 8-band PEQ (Parametric Equalizer) and no less than five filter types
2. AMC (Automatic Mixing Control) with gain sharing
3. AGC (Automatic Gain Control)
4. No less than 8-point adaptive AFC (Acoustic Feedback Cancellation) for each channel

**Output Channel Specifications**
1. No less than 8-band PEQ, frequency divider, time delayer, limiter
2. No less than 8×5 matrix
3. No less than 16 groups of presets
4. Support for LINK and grouping functions of input and output channels
5. Frequency response range of not less than 20～20kHz (±0.5dB)