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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
Price:      (Exclude shipping cost, included metal remote controller)
Vacuum HE1 SE (Single ended):USD2390
Vacuum HE1 XLR    (Balanced):USD2830
Please send your address, name  to
audio-gd@vip.163.com get the quote.

  
Vacuum HE1 XLR internal detail (Balanced)
 
   

Vacuum HE1 SE internal detail (Single ended)

  
       
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 .
          Below describe is base on the Vacuum 1 SE (Except especial note)
　
Built in Vacuum Valves
Russian Aviation grade:

Vacuum HE1 SE: 6H2N-EB *4 and 6U4N-EB *4

Vacuum HE1 XLR: 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 SE: >88DB (2V input，2VRMS output , Unweighted )

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

Output impedance
　		 <300 ohm (RCA)
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
80W (Vacuum HE1 SE)

90W (Vacuum HE1 XLR)
　
Package Weight
Approximately 22KG
　

Dimensions
　		 W430 X L450 X H125 (MM,with feet, full aluminum )
Accessories
AC power cord     X1
　


　

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