Vacuum HE1 had built in full analog technology
regenerative power supply. The analog technology regenerative power
supply has more analog and neutral on sound quality but lower
efficiency than the digital technology. We are advice the unit power on
not more than 8 hours every day.
For avoid the sound quality degrade, the unit has not built the output
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 (Only available for
Vacuum HE1 SE) .
About the XLR output :
Vacuum HE1 SE:
For easy connect the balanced power amp , the unit has one pair XLR
output except two groups RCA outputs, but the XLR output signal still
single ended .
Vacuum HE1 XLR:
For more fun to the user of full balanced system,
face to the front plate, the Left side XLR output sockets have the full
balanced output , the right side XLR output sockets only have the hot
signal output (mean single ended), user can through the XLR cable to
experience the different sound flavor between full balanced and single
Auto dark the display:
While the unit selected input 5 and the volume on 0 step, turn the
volume knob lower 1 step, the left
second display show "1" mean the auto dark active, the display will dark
after you stop operate all buttons .
If you want disable the
function, While the unit selected input 5 and the volume on 0 step, turn
the volume knob lower 1 step to let the
left second display show 0 .
Left first mean the
input channel number .
Left second mean
the auto dark function.
display mean the volume level, number higher volume is higher .