Reference One phono MK3 MM version

Reference One Phono MK3 MM phono amplifier (MM only vesrion)

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.

Features

12AX7 , 6DJ8 with Hasimoto line transformer in input stage.
5687WB with Hasimoto line transformer in output stage.
Vishay/Dale RN55, A/B , RMA Resistors
LCR network use Hasimoto Inductive
M-CAP® Supreme Silver / Gold & Oil, AudioCap Theta and MultiCap RTX coupling cap
4 pair MM input
Output with both XLR and RCA
Phase select switch Normal / Inverse
External power supply
Two Hasimoto Choke at HVB+ power supply
Phase select switch Normal / Inverse
Gain select switch with 6 position gain
MM impedance select switch with 3 position
MM capacitance select switch with 5 position

The power supply

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

More info for LCR network

Specifications

Controls.
Power Supply : Power On/Of .

Main Unit :
MM impedance select ,MM capacitance select s, Gain select, Phase Normal / Inverse , MM Input 1,2,3,4.

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

Input : 4 pair 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:
100k ohm , 47k ohm , 33k ohm

Input Capacitance
20P , 100P , 220P , 330P , 470P

Gain:
45dB , 44dB , 43dB , 41.5dB , 40dB , 37dB ,

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

Phase Mode : Normal / Inverse.

Max input : MM 80mV

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: 23.5kg

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

Actual price: HKD$40,000 one set (two unit)
　

YS-Audio
Room1308, 13/F,BLK C,.
Kai Tak FTY BLDG.
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San Po Kong,   KLN,.
Hong Kong
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