USB spdif SE tube convertor pcb abbasaudio, ECC88, (6DJ8), 2X EAA91, EC86 ver.4

Description

Welcome to all music lovers!
I present to you
the only device of this kind in the world that has tubes on the board.
I designed this device to enjoy music from my computer in first.
I was trying to solve the problem of the lifeless sound of digital devices
for many years
, and I believe that I managed to do this today.
The product of this long term job is the invented by me tube master clock , designed by me varios DACs and various PCBs for the upgrade of digital equipment, that you can see among my
items. It is e special voltage regilators, tube clocks, spdif stages, output solid state and tube stages.
USB-SPDIF SE Hi-fi tube convertor abbasaudio version 4  is proposed to your attention .
A couple words about item.
This is assembled device, ready to work. Drivers must be installed automatically after first power on.
The device
requires warmup for one minute, because the tubes inside!
Dear customers, pay attention to this information!
Here is not a Chinese shop!
Each device will built especially for you, after payment, so I can not guarantee immediate delivery.
A delay of about a week is possible!
24bit/96 khz support
Compatible with all
types of PCs , works under Windows, Linux, MAC OS
USB/SPDIF  tube convertor features:
1. ECC88 , 6DJ8, 6N23P ( low jitter c
lock )
2.
EC86 / 6S3P / 6S4P triode single ended output stage (plate follower)
3. Shunt voltage regulator:TL431+  HF germanuim transistor, separate voltage regulator for core of digital processor
4. Vintage and modern high quality audio components:allen bradley,philips,rft,telefunken,panasonic pureism, siemens film capacitors
5. Board covered with gold and a special varnish for best sound
6. 115/230v power transformer ( setting before shipping)
8. Siemens /Koweg film output capacitor
9. 2pc EAA91 rectufier tubes
Tube USB converter abbasaudio has an extremely clear sound.
Soviet tubes included.
One year guarantee!
This device
Pay Pal,money transfer
Worldwide shipping