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Vacuum HE1
MK2

Built in regenerative power supply
Real balanced design ,10 unit vacuum valves built in
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

    

          
Note: The manufacturing process and design can be updated and upgraded at any time so internal and external changes to the actual product can occur without notification.
Summarize Use Manual Specs Custom Option Shipping Cost

          The active components all are the nonlinear components, it can not has the perfect on every side . While we design the unit, we had to choice the perfect area of the components .
          We had consider the most power amp has around 1V input sensitivity, while the preamp output 1V level, the power amp has full power output, so we decided make the perfect area on the 2V and below output level .
          About the frequency band, we have not looking for the best specs on paper, but we have through the long term listen and adjust to confirm the final parameter .
 

Built in Vacuum Valves
Russian Aviation grade:

6H2N-EB *6 and  6U4N-EB *4

Filament voltage: 6.3V

Input power supply: 200-250VAC Or 100-125VAC
 

Burn in time
 
The unit had 100 hours in factory.
Another 100 hours burn in is recommend.

Warm time
 
20 Minutes

Power on time
 
Advice less than 8 hours every day

S/N Ratio
 
Vacuum HE1 XLR: >96DB  (2V input,2VRMS output , Unweighted )

Output impedance
 
<300 ohm
Frequency Response Single-ended (<-3DB) Balanced (<-3DB)
THD Single-ended (<0.05%) Balanced (<0.02%)
Single-ended (<0.05%) Balanced (<0.02%)
Input Sensitivity


1V RMS output:280MV
 


Gain
 

11DB

Power Requirement
 Version 1: 100-120V  AC 50/60 Hz

Version 2:  220-240V  AC 50/60 Hz
 
Power Consumption
90W (Vacuum HE1 XLR)
 
Package Weight
Approximately 22KG
 

Dimensions
 
W430 X L445 X H125 (MM,with feet, full aluminum )
Accessories
AC power cord     X1
 


 

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