DIY Class A Preamplifier Kit / Preamplifier Board Base On Accuphase C3850 preamp

Description: This board is reference the Accuphase C3850 circuit .it is worth making and admiring preamp circuit. If you do it carefully, the effect is much better than the general pre-stage. It is looser, more delicate, warmer and charming, much better than Ordinary tube and op preamp. The circuit architecture uses the operational amplifier as the basic amplifier. Discrete parts are added to increase the open-loop gain, and the voltage and current dual feedback circuit is used to reduce distortion. The output tube uses the British original famous tube ZTX450 ZTX550, and the output is in Class A status. The music tastes very good. Bold After solder well. it is No need to debug the board PCB size: 155X136MM Works voltage: Recommend AC15V-0-AC15V (14-18V are all ok) This board support 3 way audio inputs. The standard op amp is Philips NE5534, customers can upgrade other single op amps, such as OPA627, LME49710, OPA1611, etc. Note: If choose Diy Kit，all parts need buyer to solder it ！ If choose Assembled Board ，we have solder and tested it well ！ On May 31, 2022 at 10:21:52 PDT, seller added the following information:

Price: 39.5 USD

Location: FOSHAN

End Time: 2024-01-31T15:46:46.000Z

Shipping Cost: 3.5 USD