DP-428+ Processor

1.96KHz sampling frequency, 32-bit 400MHz DSP processor, 24 bit A/D and D/A conversion;

2. Support USB, LAN, RS485, WIFI connection to computer clients;

3. RS485 serial port supports third-party central control;

4. Through RS485 interface, 32 devices can be connected in series;

5. Can store 24 types of user programs;

6. Each input and output channel is equipped with 10 segments of PEQ (optional PEQ, LowShelving 2nd, High Shelving 2nd, LowPass 2nd, HighPass 2nd);

7. The slope of the variable high/low-pass IIR filter can be set, with Butterworth set to 6dB, 12dB, 18dB, 24dB, 36dB, and 48dB per octave, and Linkwitz Riley set to 12dB, 24dB, 36dB, and 48dB per octave; Bessel can be set to 12dB, 18dB, 24dB, 36dB, 48dB per octave;

8. The parameters of the input/output channel high/low-pass filter can be independently adjusted to achieve asymmetric frequency division function;

9. Each input/output has gain, delay, phase control, and mute settings, with a maximum delay of up to 1000ms. Delay units can be selected in milliseconds (ms), meters (m), and feet (ft), with 5 step sizes including x0.001, x0.01, x0.1, x1, and x10;

10. Each output has RMS compression function, with an adjustment range of -24dB~12dB and a step size of 0.1;

11. The input channel supports noise gate adjustment, with an optional range of -120~-20dB;

12. Built in signal generator function, supporting pink noise, white noise, and sine wave selection, with adjustable signal size;

13. Support channel replication and joint debugging; Support modifying the name of each input/output channel.

14. Support machine online search function.

Technical Specifications

4-channel XLR female XLR input channel and socket

Output channel and socket 8-way XLR male XLR socket

Signal to noise ratio ≥ 110dB (THD+N<1%)

Distortion LINE:<0.005% @ 1K @ Output 0dBu

Maximum input level LINE:+12dBu

Maximum output level LINE:+12dBu

Frequency response 20Hz-20KHz @ ± 0.5dBu

Input impedance balance formula: 4.7K Ω

Output impedance balance formula: 100 Ω

Channel separation degree>115dB

Bottom noise -93dB

Delay accuracy 0.001ms

Maximum value 1000ms

Group delay 2.15ms

Processor 96KHz sampling frequency, 32-bit DSP processor, 24 bit A/D and D/A conversion

2-inch color LCD display screen

Power consumption ≤ 20W

Power supply 100V-240V~50Hz/60Hz

The size of this machine is 485 × 185 × 45MM

Packaging size 590 * 260 * 90MM

Net weight 2.04kg

Gross weight 2.8kg