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Vacuum HE1 SE (Single-ended)
Vacuum HE1 XLR
(Balanced)

Built in regenerative power supply
8 unit vacuum valves in Vacuum HE1 SE
10 unit vacuum valves in Vacuum HE1 XLR
Applied vacuum rectifier ,Without silicon elements on signal and tube power circuits

All power caps built with SOLEN film caps
All vacuum valve filaments power supply by AC
Remote function

  

Vacuum HE1 XLR internal detail (Balanced)
 
 
   

Vacuum HE1 SE internal detail (Single ended)

 
       
Summarize Use Manual Specs Custom Option Shipping Cost

Please note:
         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 delay design.
         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 ended.

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 .

Display inform:
         Left first mean the input channel number .
         Left second mean the auto dark function.
         Another two display mean the volume level, number higher volume is higher .
 

 

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