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 ！
Price: 29.99 USD
Location: FOSHAN
End Time: 2023-11-12T10:12:04.000Z
Shipping Cost: 13 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Compatible Brand: Universal
Brand: Unbranded
MPN: Does not apply
Available Variations
Color: DIY kit
Price: 29.99 USD
Available Quantity: 3
Quantity Sold: 0
Color: Assembled board
Price: 39.99 USD
Available Quantity: 3
Quantity Sold: 0
