Finished HV11 Full discrete no feedback Class A headphone amplifier L7-27

Description

Works voltage: AC115V or AC230V  for choose
Suitable for 32-600ohm headphones
External dimensions: width 155mm       Height  60mm    Depth 241mm
HV11 is designed with reference to CKII amp circuit. the circuit is pure class A, fully discrete, no feedback, all direct-coupled (no input capacitance and feedback capacitance), with DC servo.
The overall sense of hearing: direct, without modification, high detail
Electrolytic capacitors equipped with audio capacitors such as ELNA, Panasonic M, and chemical
Taiwan produces 1% precision metal film resistor package, 5W non-inductive power resistor
DC Servo Uses TI TL081 FET Class Single Op Amp
Input tube is PHI silver surface BC546-556, other small tubes are FBC550-560C
The power tube is a Toshiba 2SA1358-2SC3421, with a high degree of detail.
Stepless Capacitors Use PHI and AV Audio Capacitors
20W
Oxygen free copper R-core transformer.
Origianl ALPS volume Potentiometer.
All aluminum chassis + solid knob. it looks very befault!!
Package include: Finished HV11 headphone amplifier   X 1
default are not include any cable!!
Shipping time:
Default send by airmail,about 14-20 business days can arrive most of europe countries, Russia, Brazil,Africa.Ukraine and some other remote countries will need some more 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 )