Reference one MK-V tube line preamplifier     (Since: Nov 2021)

The Reference One MK-V (Since: Nov 2021) is Audio Experience Reference Grade line preamp. it uses one E88CC at tube input stage to driver EC8010 tube with one Hasimoto line output transformer construct Class A for each channel.


The Reference One 's application of a highly efficient solid-state voltage regulator with EZ81 Tube for current regulator and Hasimoto choke in the HVB+ power supply . Also it use the external power supply get highest S/N, the power supply is dual mono design.


The New MK-V  improved the circuit of amplifier, the sound got full upgrade about 30% than MK-3 Ver2
The T.H.D of MK-V is 0.04%
  1kHz at 2V , The before
MK-3 Ver 2 is 0.05%  1kHz at 2V

The S/N of MK-V is >114dB , The before MK-3 Ver 2 is >113dB.




  refe1mkv9.jpg (557638 個位元組) High/Low gain selector

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Main unit : Volume , Input gain, Input Selector , Output XLR/RCA Selector , High/Low Main gain selector .

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. 

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

Frequency Response:  20Hz ~ 100kHz ( 20Hz 0dB , 100kHz -3dB) at 2V output.

T.H.D : 0.04%  1kHz at 2V , main gain set at high gain.

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

Gain: High gain 17.8 dB ( XLR and RCA are same gain ) , Low gain 13.8dB ( XLR and RCA are same gain ).

S/N: >114dB

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

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

Phase Mode : Normal

Max Output : 26V

Line-Stage Tubes : 2 pcs E88CC , 2 pcs EC8010 , 2pcs EZ81.

Dimension: Main 400mm x 310mm x 150mm (W x D x H) , power supply 400mm x 310mm x 80mm (W x D x H)

Weight: Main and power supply total 12.5kg

Power Source: 110V-120V / 220V-240V, 50/60Hz


Not remote version actual price: HK$29980.

With remote ( remote volume controls only ) version actual price: HK$31800.

The Reference one MK-V have black and silver two color version.






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