Merchandise details

1. use the original irs2092 and irfb23n20d.

2. Elna and nxb are used for the main circuit of electrolytic capacitor signal. The main filter capacitor is 4700uf/80v*4 Japanese chemical capacity, and 25*2 (50a) rectifier flat bridge is used to ensure strong and continuous power support.

3. five ring metal resistor is selected as the resistance, and five ring metal film resistor with accuracy of ± 1% is used for the main circuit to ensure good signal-to-noise ratio of the whole machine.

4. PCB adopts 1.6mm thick double-sided plate, 2.0 ampere copper thickness, and tin spraying process to ensure good passing performance of large and small current. PCB quality.

5. use 20A high current shielded inductor to ensure clear and powerful sound.

6. add the current advanced upc1237 horn protection circuit and 30A relay control to effectively control the startup impact sound, making your horn safer.

7. the wiring layout of the whole PCB is quite rigorous and reasonable, and the overall PCB wiring adopts one-point grounding mode. The power amplifier board works stably and reliably with large output power; The sound is beautiful and mellow, and the sound field is wide. It has strong three-dimensional sense, low-frequency stability, solid and powerful, excellent signal-to-noise ratio, and wide dynamic range; With clear details and excellent transient response, it can play all kinds of music freely, and has a very good performance in the home playback environment.

Basic parameters:

1. application voltage range: AC double 20v-45v (rectified voltage ± 28v-60v). Note that when the voltage is below 35V AC, R6 R7 (4.7K 3W) uses 2K Ω /3w resistance. (the default voltage for shipment is 40-45v, R6 R7 is 3.9k)

2. output power: 350w/8 Ω AC dual 50V power supply, distortion <0.1%; 700w/4 Ω AC dual 50V power supply, distortion <0.1%

3. voltage magnification: 36 times (positive phase amplification)

4. input sensitivity: 1.6V (effective value)

5. input impedance: 14k Ω

6. frequency response: 0-50khz ± 1dB 10w/8 Ω

7. residual noise voltage: 200uv

8. dynamic range: >100db

9. size: 210*78*50m