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HOME >> PRODUCTS >> DIY KIT HiFi A3 Fully symmetric double differential FET power amplifier board UPC1237 protection
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DIY KIT HiFi A3 Fully symmetric double differential FET power amplifier board UPC1237 protection
Item ID：LJ-263
List Price：US$27.98
Price：US$26.98
Payment Terms
paypal
Shipping
ship to world wide
Availability
in stock
Description
Product Q & A
Review
Specifications:
1 with a fully symmetrical double differential input structure, the input tube with
high-dedicated A42, A92 on the tube, and constant current source constant
operating point, the sound quality is very delicate, sound field is very good,
balanced atmosphere.
2 using PASS machine dedicated high-power FET IRFP240 IRFP9240 output,
sound closer to the tube, low frequency full of human voice moist
3 in the AC35X2 voltage, the maximum output of 100W 8 Europe, compared to
LM3886 68W-4 Europe 40W-8 Europe, the driving force is not a level, pay attention
to TDA7293 100W is 4 oh test. 8 Europe does not exceed 60W, even in the AC26,
the output can reach 80W 8 Europe.
Material introduction:
1 resistance for the Beijing copper feet 718 resistance, green capacitor for
the German ERO, more than the red WIMA more delicate, no burr
2 output tube for the PASS dedicated to the IRFP240 IRFP9240 input tube is
ON A42,92, this tube with the early morning on the machine has
been very good, the drive tube is Toshiba C5171 A1930
3 protection circuit for the Japanese Omron relay plus UPC1237,
ectifier bridge is three Ken 50A bridge
4 PCB is blue double sided gold plate
parameter:
PCB size: 150X100MM
Input voltage: AC16X2 to AC35X2
Packing List:
Amplifier Board /kit X1pcs
Finished DAC / DAC KIT / DAC BOARD
Items No：LJ-0348
Price：US$30.99
Finished DAC / DAC KIT / DAC BOARD
Items No：LJ-0347
Price：US$17.88
Finished DAC / DAC KIT / DAC BOARD
Items No：LJ-0346
Price：US$14.99
Finished DAC / DAC KIT / DAC BOARD
Items No：LJ-264
Price：US$35.98
