Reference One Phono MK3  phono amplifier



Reference grade Phono preamplifier .

The main unit with power supply of 2 unit design. 

The Reference-One use T-LCR type RIAA EQ design, the T-LCR Type is best method for revive RIAA EQ, also is highest cost design.

It uses 12AX7 ,6DJ8  with Hasimoto line output transformer for input stage, special made T-LCR type RIAA EQ , 5687WB with Hasimoto line output transformer output stage( with XLR and RCA output).

The Reference One 's application of a highly efficient solid-state voltage regulator with EZ80 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 MC step up transformer use Hasimoto HM-X ( made in Japan )

Features  


 

rpmk3m.jpg (442494 個位元組)  rpmk3n.jpg (429751 個位元組)  rpmk3pr.jpg (428872 個位元組) The power supply 

rpmk3i.jpg (338871 個位元組) Gain select switch with 6 position gain , MC impedance select switch with 6 position .


T-LCR Type is Line output transformer drive the LCR network

More info for LCR network


rpmk3b.jpg (428117 個位元組) rpmk3c.jpg (393564 個位元組) rpmk3d.jpg (435729 個位元組) rpmk3e.jpg (326707 個位元組) rpmk3f.jpg (349455 個位元組) rpmk3g.jpg (388525 個位元組) rpmk3h.jpg (401264 個位元組) 

rpmk3j.jpg (569561 個位元組) rpmk3k.jpg (532602 個位元組) rpmk3l.jpg (542047 個位元組)   rpmk3o.jpg (619983 個位元組) rpmk3p.jpg (515602 個位元組)  rpmk3ps.jpg (464745 個位元組)


Specifications

Controls.
Power Supply : Power On/Of .

Main Unit : 
MC impedance select ,Gain select, Phase Normal / Inverse , 
Input MC/MM , MC Gain High/Low , MC Input 1,2,3.

Output :  1 pair Main XLR , 1pair Main RCA.

Input : MC1 input , MC2 input  , MC3 input ,  MM input . ( all RCA ).

Output Impedance :  
600 ohms ( XLR and RCA same ) , 600 ohms minimum load.

Frequency Response: +/- 0. 2dB 20Hz to 20KHz , RIAA equalized

Input Impedance: 

MC low gain: 
520 ohm , 350 ohm , 200 ohm , 100ohm , 75 ohm , 50 ohm

MC high gain: 
133 ohm , 90 ohm , 52 ohm ,  30 ohm ,  20 ohm , 10 ohm
 
MM is 47K / 100P ( the capacitance impedance can change by module )

Gain: 
1 is Low MC 68.5dB / High MC 74.5dB / MM 45dB ,
2 is Low MC 67.5dB / High MC 73.5dB / MM 44dB ,
3 is Low MC 66.5dB / High MC 72.5dB / MM 43dB ,
4 is Low MC 65dB / High MC 71dB / MM 41.5dB ,
5 is Low MC 63.5dB / High MC 69.5dB / MM 40dB ,
6 is Low MC 60dB / High MC 66.5dB / MM 37dB ,

Noise: MM 92dB (shorted input) , MC 91dB (shorted input).
signal-to-noise ratio, below 1 Volts RMS output,  A weighted

Phase Mode : Normal / Inverse.

Max input : MM 80mV , MC 8mV

Distortion: Less than 0.12% at 2V RMS 1kHz output.

Tube Compliment : 12AX7 x2, 6DJ8 x2,  5687WB x2, EZ80 x2.

Dimension: 
Main unit , 400mm x 300mm x 165mm (W x D x H) 
Power Supply ,455mm x 350mm x 120mm (W x D x H)

Total Weight: 25kg

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

 

Actual Price: HK$45800
 


YS-Audio
Room1308, 13/F,BLK C,.  
Kai Tak FTY BLDG.   
99-101 King Fuk ST,.   
San Po Kong,   KLN,.
Hong Kong
Tel:(852)93440168    
E-mail : info@ys-audio.com 
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