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SF60 HiFi High Power Dual Channel Class AB Power Amplifier Board Ultra LM3886 TDA7293 Replacement for SUGDEN
Description:
- Reproduce the classic SF60 amplifier circuit for SUGDEN, with circuit wiring designed according to the original, using original C3284/A1303 power tubes for Sanken. The sound is full of classic amplifier flavor, mellow and durable, transparent, delicate, and silky. After listening to digital amplifiers for a long time, listening back to this classic circuit is a comfortable and comfortable experience for one ear.
- All circuit boards use advanced components, for NOVER filter capacitors, red WIMA capacitors, Panasonic FC series fever capacitors, ROE small capacitors and NISSEI capacitors. Once obtained, it is in a HiFi state and does not require further refinement or optimization.
Precaution:
- The power supply of the circuit board requires the use of dual 28V high-power transformers, followed by the addition of a rectifier bridge to connect to the SF60 power amplifier board, and cannot be directly connected to transformers. Suggest using a 400W ring transformer to ensure effectiveness.
- The AC15V interface of the circuit board is used to supply power to the protection circuit and requires a separate 15V output from the transformer. It cannot be shared with other circuits.
- The static current of the power amplifier board does not need to be set too high, and the voltage measured at both ends of the output resistor is 15mV.
- The installation and debugging of SF60 require professional circuit knowledge. If you lack experience, please study and understand before starting.
Specification:
- Model: SF60
- Output channel: 2.0 channel
- Power amplifier transistor: for SANKEN C3284/A1303x2
- Amplification: 28X
- Frequency range: 20Hz - 20kHz
- Main voltage: dual AC28V, with rectifier, single AC15V
- Output power: 60W + 60W/8ohms
- THD+N: 0.005%
- Protection mechanism: over-current protection, mid-voltage protection, power-on delay protection
- Product size: 230 x 84 x 49mm
- Net weight: 300g
Package Included:
- 1 x Power Amplifier Board
