Reference one tube line preamplifier with remote control version

The Reference One is Audio Experience Reference Grade line preamp with remote control version. it uses one Western Electric 417A / 5842 tube with one Tango line output transformer construct Class A NOT NFB circuitry for each channel.


The Reference One 's application of a highly efficient solid-state voltage regulator with 6X4 Tube for current regulator and Tango choke in the HVB+ power supply . Also it use the external power supply get highest S/N.



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Main unit : Volume , Input Selector , Phase Normal / Inverse, AV Bypass Sound/AV Processor, Output XLR/RCA Selector , Power Light On/Of .

Power supply : Power On/Of

Output :  Two pair XLR Main Output  , Two pair RCA Main Output .

Input : One pair XLR input , Three pair RCA input , One pair Processor input with XLR/RCA.

Output Impedance :  60 ohms
Recommended load:  600 ohm or greater.

Frequency Response:  20Hz ~ 20KHz -/+0.5dB , 10Hz ~ 100KHz -/+3dB 

T.H.D : <0.1% (20Hz ~ 20KHz /2V)

Input Impedance: 10K ohm XLR , 50K ohm RCA.

Gain: 20 dB ( XLR and RCA are same gain )

S/N: >110dB

Channel Balance: <0.1dB(20Hz ~ 20KHz /max output)

Channel Separation: >98dB(2Hz ~ 20KHz)

Phase Mode : Normal

Max Output : 10V/ 30Hz ( load at 600 ohm )

Line-Stage Tubes : 2 pcs 417A / 5842 , 1pcs 6X4.

Dimension: Main 455mm x 350mm x 120mm (W x D x H) , power supply 160mm x 135mm x 60mm (W x D x H).

Weight: Main and power supply total 10kg

Power Source: 110-127/220-240V,50/60Hz



Room1308, 13/F,BLK C,.  
Kai Tak FTY BLDG.   
99-101 King Fuk ST,.   
San Po Kong,   KLN,.
Hong Kong
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