Clone of QUAD405-2, It is unlike QUAD405 and is the later improved model of QUAD-405.It is also a lot of sales on the market. LJM is imitated. The plastic transistor has better performance than the earlier metal power tube.
And more convenient installation.
All resistors are made of solid metal film resistor copper pin, 1% accuracy, including high power resistors.
The output transistor uses the new original KTD 1047 10A 100W high power tube.
Inductors are precise matched manual on LCR bridge meter, accurate is up to 0.01uH 0.1%.
Power voltage: DC> = +/- 30V, <= +/- 50V
Power Output: 50 --- 100W 8Ohms
100W (+/- 50V) Power supply
PCB Size: 118mm * 90mm (L*W)
NOTE: It is a pair assembled amplifier and tested .
Packing List:
- Pair(2pcs) QUAD405-2 power amplifier finished board
Using the original imported TL071 JFET operational amplifier
Using the original imported ONSEMI power pipe
Measuring &matching inductors on LCR meter
Testing result on AP SYS2 audio analysistor