Using TAS5630, OPA1632DR, TL072
The main filter electrolytic capacitor adopts a capacity of 470UF/100V x 4 to ensure strong and continuous power support.
The resistance is a five-ring metal resistor, and the main circuit uses a five-ring metal film resistor with an accuracy of ±1%, ensuring a good signal-to-noise ratio of the whole machine.
Use fully shielded high-current inductors to ensure crisp and powerful sound.
PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents. Top-notch PCB quality.
Basic parameters:
1. Working method: Category D
2. Quiescent current: 65mA
3. Work efficiency: 88%
4. Output power: 300W+2 x 150W/4 ohms 10% THD
5. Frequency response: 20Hz to 20KHz
6. Dynamic range: Greater than 100 dB
7. Signal-to-noise ratio: 100dB(A-Weighted)
8. Working voltage: DC48V
9. PCB size: 150 x 95MM
10. Potentiometer function: from left to right 1. Subwoofer volume 2. Left and right channel treble 3. Left and right channel volume 4. Total volume
11. Potentiometer spacing: 22MM x 22MM x 30MM
Weight: 380g
Material: abs
Color as shown
Package Contents:
1 x Digital amplifier board
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.





Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.

Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
