Hifi Remote Version ECC83+ ECC81 Stereo Tube Preamplifier Base on Matisse preamp

Description

Work voltage AC115V or AC230V for choose
1: Support 4 way stereo audio inputs  one way output
2: with remote control: Power on/off choose input Adjust volume Mute
3: Rotate the Right one selector knob is choose inputs. press the selector is standby.Rotate the left knob is adjust the volume
Using   2pcs  PSVANE  ECC83 +2pcs  PSVANE ECC81   (
buyer also can buy it without tubes. Install your favorite tubes.)
Hi end Oxygen-free copper R-core transformer
Original Japan ALPS Potentiometer.
Taiwan high quality frosted Pure copper RCA terminals.
Full aluminum chassis + Stainless steel switch
This preamp is reference the famous Matisse preamp Circuit , using High voltage 400V power supply, parallel Tubes, the first stage is 12AX7 and the second stage is 12AT7. this much better than most other lower voltage Matisse preamp Clone Circuit.
PRT06B preamp design thinking:
1: It is consistent with the 400V power supply voltage of the original machine.
2: All voltage parameters are consistent with the original machine.
3: DC filament power supply to avoid the influence of voltage fluctuation on the filament
4:The output signal is switched on with time delay to avoid the strange sound generated by the electron tube when the engine is hot
This preamp sound is very comprehensive and dynamic. The human voice is natural
and delicate, the strings are smooth, stretched, and the positioning and imaging are excellent. The high and low frequencies are extended in
place, and the low frequencies dive deep and powerful without lack of  flexibility.
There are many tube preamp on the Internet design is not very reasonable. The main manifestation is that the distance between the Tubesis too close. ZERO-ZONE suggests that the distance between the center
of each is greater than 40mm.
● Gain: about 10 times.
● input impedance:47K
● SNR: 90dB;
● Frequency response: 10Hz--30KHz;
● Distortion: ≤1%
● Size:362*98*340MM (W*H*D)
Package include:
Finished preamp X 1
Remote X1 (no battery)
Default is also not include the AC input power cable. Please prepare by yourself ！！！
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 )