DIY KIT:      include all parts. will need youself to solder it

Assembled board:   we will solder and test it well before shipping.

works voltage :  AC12V-0-AC12V  （12-15V  is ok）

PCB Size: 127mm*51mm

Default opamp is use JRC5532. with opamp socket.  buyer also can Upgrade with your favorite dual opamp

to try the different sound style. such as OPA2604  AD827  LME49720NA  or  MUSES01   MUSES02  etc.

    This Preamp board is base on the famous Accuphase C3850 Core circuit. The effect is much better than

many general preamp, sound more loose, more delicate, and more warm and charming,
.