Custom order options:
：Custom order output delay , price is USD15 .
the sound quality degrade, the unit has not built the output delay
After power on the unit, the
display will blinking around 30 second, we are recommend power on
the power amp after the display stop blink .
If you feel bother of this
operate , you can
custom order the delay output while place the order .
Option 2 ：Buy the spare
matched 6H2N-EB cost price USD10/pc, total 4 pcs for one
unit , 6U4N-EB cost price USD10/pc, total 4 pcs for one unit.
avoid the sound quality degrade, we are recommend replace the new
vacuum valves after 5000 hours, (Every day 3 hours, it is around 5
years) . After replace the new vacuum valves, it need around 150
hours burn in.