product details:
STK350-23 high-power audio thick film integrated circuit is a product of Japan's Sanyo Corporation. This series of thick film integrated circuits have the advantages of high precision, flexible circuit design, good sound effects, large output power, low distortion, stable performance, high heat resistance and simple peripheral circuits. They are quite popular in audio high power circuits.
1. Use original STK350-230, 2SA1943/2SC5200.
2. Inter-stage coupling capacitor adopts fever-grade capacitor 4.7UF, with natural sound and wide sound field
3. The main circuit adopts five-ring metal film resistor with an accuracy
of ±1%, which ensures a good signal-to-noise ratio of the whole machine.
4.The PCB adopts a 1.6mm thick double-sided board and a 2.0 oz thick
copper spray tinning process to ensure good passing performance of large and small currents. First-class PCB quality.
5. The biggest feature of this board is the use of advanced speaker protection circuit, which
effectively eliminates the impact sound of turning on and off and the DC
output protection function, making your speakers safer.
6. The wiring layout of the whole circuit board is quite rigorous and reasonable, and the whole PCB wiring adopts one-point grounding method.The power amplifier board is stable and reliable, with high output power; beautiful and round sound, and wide sound field. It has a strong stereo effect, stable and powerful low frequency, excellent signal-to-noise ratio, wide dynamic range; clear details, excellent transient response, and can play all kinds of music with ease. It has a very good performance in the home sound environment.
Power parameters:
Main power: DC+-45V (AC: transformer 400W double 32V, need to add rectifier board)
Power: 300W 4 ohms, distortion 0.01%, Class AB
Note: AC is connected to the AC terminal of the main power supply of the transformer
package:
1*A30 300W STK350-230 Class AB Mono Power Amplifier Board
