Finished Hifi Class A stereo preamplifier base on Accuphase C3850 preamp C8-2

Description

works voltage: AC220V-AC240V  (we also can provide AC115V version)
Size:262mm*65mm*295mm  (W*H*D)
support 3 way stereo Audio input. one way output.
Color:  default is black.  (we also can provide with full silver case. if you need silver color. please send a message to us after order it. )
This preamp is reference is from 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
Main materials:
30W oxygen-free copper R type transformer
Japanese original ALPS volume potentiometer
UK NOVER main filter capacitor
ELNA WIMA Decoupling Capacitor
718 Military Resistor
High quality pure copper RCA terminal
All aluminum frosted shell
The standard op amp is Philips NE5534, on the board with the Op amp sockets.  customers can upgrade other single op amps, such as OPA627, LME49710, OPA1611, etc.
package include:  finished  preamplifier   X 1
No AC power cable included.
Shipping time:
Default send by air mail. to US,CA，
Mexico and most Europe, Asian countries，
about 15-22 business days can arrived ,to Russia, Brazil,Africa.Ukraine and some other remote countries will need 30-40 working days.
Payment:
We ONLY accept PayPal. Payment must be made within 3 days of the auction end time. Non-Paying bidders will be reported.
All items will be shipped within 1-3 business days (from china)upon receipt of payment.
We ONLY send item to buyer's registered Paypal address,Buyer must be responsible for their postal address
Customs & duties:For cross-border transactions,.we are not responsible for tariffs and duties. However, buyers may be responsible for  actual, applicable tariffs, and duties as requested by respective country laws
Return & Exchange:
>> Some items return is accepted within 7 days after the buyer's receiving the item.(please see the detail describe)[In case of DOA (Dead on Arrival), please report within 3 days]
>> Returned item has to be new, unworn and in its original condition.
>> After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and from )