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Vacuum HE1 LE (Balanced design）
10 unit vacuum valves
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
　

Please note: The product improve cause the inside or outside change without inform .

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Specs

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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: 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	No limit
S/N Ratio	>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	40W
Package Weight	Approximately 20KG
Dimensions	W430 X L450 X H125 (MM,with feet, full aluminum )
Accessories	AC power cord X1

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