1. High quality fR4 glass fiber board
2. power maxi-50v-60v-10a
3. deliver upto-1000w
4. low noise and crystal quality sound
5. speaker watt should be 300w- 400w
6. Use best quality 2SA1943 and 2SC5200 for best performance
Product details of Mono Amplifier Board 1943+5200 High 1000W After Tube Amp Board1. The board is a single-channel amplifier board, which requires dual-channel2. The circuit design uses C4793 and A1837 high-voltage audio pair tube dual differential circuit and voltage amplification to promote the use of mid- pair tube C4793 annd A1837 and the output stage uses A1943/C5200 high- Toshiba pair tube.3.Wide supply range, DC plus or minus 30V-60V can be, as long as enough is supplied to easily reach 200, the sound quality is good, the driving force is strong, and the 15-inch speaker is pushed without pressure!4. supply: dual voltage, DC plus or minus 30V-60v (the upgraded version has optimized the circuit and parts, but To directly apply high voltage, it is recommended to use below 90V, do not challenge the voltage limit. )