technical parameter
Model 4 in 8 out
Input channel and socket 4-way XLR female XLR base
Output channel and socket 8-way XLR male XLR base
Input impedance balance: 20K Ω
Output impedance balance: 100 Ω
PC interface panel: 1 USB interface (USB3.0 control interface can be extended to WiFi control interface), 2 RS485 interfaces (RJ-45 seat) on the rear board
Common analog ratio > 55dB (1kHz)
Input range ≤ + 15dbu
Frequency response 19.7hz-20khz (± 0.5dB)
SNR > 88DB
Distortion < 0.03% output = 0dBU / 1kHz
Channel separation > 100dB (1kHz)
Input channel function
Input noise gate each input channel has the function of setting noise gate, threshold value: - 120dbu ~ 0dBU, step distance: 1dbu
Input mute. Each channel is set with separate mute control
Input gain range: - 80dB ~ + 12dB, step: 0.1dB
Input delay each input channel has a separate delay control, the adjustment range is 0 ~ 1000ms, and the fine-tuning step is 10us; The coarse adjustment step is 1ms
Input phase in-phase (+) or inverse (-)
Input equalization each input channel is set with 6 parameter equalization, and the equalization mode can be PEQ / Lo shelf / hi shelf / APF 1st / APF 2nd
A. In PEQ state, the adjustment parameters are: center frequency point: 19.7hz ~ 20kHz, 241 frequency points in total, bandwidth: 0.05oct ~ 3oct, step length: 0.01oct, gain: - 20dbu ~ + 20dbu, step length: 0.1dbu
B. In lo shelf and hi shelf States, the adjustable parameters are: center frequency point: 19.7hz-20khz, 241 frequency points in total, slope: 6dB / 12dB, gain: - 20dbu ~ + 20dbu, step length: 0.1dbu
C. In APF 1st state, the center frequency is 19.7hz ~ 20kHz, and a total of 241 frequency points can be selected.
D. In APF 2nd state, the adjustment parameters are: center frequency point: 19.7hz ~ 20kHz, 241 frequency points in total, bandwidth: 0.05oct ~ 3oct, step distance: 0.01oct.
Input dynamic equalization each input channel is provided with 2 dynamic equalization, and the adjustable parameters are: frequency turning point: 19.7hz ~ 20kHz, 241 frequency points in total, bandwidth: 0.05oct ~ 3oct, and the step distance is 0.01oct. Target level: - 45dbu ~ + 15dbu. Threshold: - 45dbu ~ + 15dbu. Ratio: 1.0:1 ~ 20:1, 0.1 step from 1.0:1 to 1:2, and 0.5 step from 1:2 to 1:20. Response time: 0.3ms ~ 200ms, when it is less than 1ms, the step is 0.1ms; When it is greater than 1ms, the step is 1ms. Release time: 50ms ~ 5000ms in steps of 1ms
Input compression each input channel has a separate input compression setting. The adjustable parameters are: compression level: - 40dbu ~ + 20dbu, and the step is 0.1dbu. Compression ratio: 1.0:1 ~ 20:1, 0.1 step from 1.0:1 to 1:2, and 0.5 step from 1:2 to 1:20. Response time: 0.3ms ~ 200ms, when it is less than 1ms, the step is 0.1ms; When it is greater than 1ms, the step is 1ms. Release time: 50ms ~ 5000ms in steps of 1ms
Input automatic gain each channel has a separate input automatic gain function. The adjustable parameters are: threshold: - 80dbu ~ + 20dbu, step is 0.1dbu. Target level: - 80dbu ~ + 20dbu. Ratio: 1:1 ~ 1:20; 1: Step 0.1 between 1 and 1:2; 1: 2 to 1:20 in steps of 0.5. Response time: 0.3 ~ 200ms, less than 1ms