Mercury   valve tube MM phono amplifier

Level 3  valve tube MM  phono amplifier .

The main unit with power supply of 2 unit design. 

Mercury use CR type EQ curve design, the CR Type is good method for revive EQ curve ( not-NFB).

It uses ECC83 tube Class A and not-NFB input stage, CR type Curve EQ ( six kind Eq curve ), ECC81 and E88CC tubes Class A and not-NFB output stage 

The Mercury 's application of a highly efficient solid-state voltage regulator with 6X4 Tube for current regulator and R-Core ( Japan Hi-B core ) choke in the HVB+ power supply . Also it use the external power supply get highest S/N.





mercury9.jpg (500474 個位元組)

Mercury has a select control for select 6 kind EQ curve : 
RIAA , Londo , LP , CCIR , AES , NAB .

RIAA, match 99% LP. ( 1955 after )

Londo , LP , CCIR , AES , NAB  are other curve for old LP. ( 1955 before )
Please see following table , there have more infornmation.
curve_1.jpg (429129 個位元組) curve_2.jpg (409452 個位元組) curve_3.jpg (274804 個位元組)

 mercury2.jpg (634903 個位元組) mercury3.jpg (639007 個位元組) mercury6.jpg (660629 個位元組) mercury8.jpg (612488 個位元組)  mercury13.jpg (413088 個位元組) mercury10.jpg (511550 個位元組) 

mercury11.jpg (347018 個位元組) mercury12.jpg (354087 個位元組) 


senzd.jpg (539219 個位元組)  Review by HiFi review.




Power Supply : Power On/Of .

Main Unit : 
Input impedance select , Input Capacitance select, Gain select, Eq curve select , Input select , Mono / Stereo

Output : 1pair Main RCA.

Input : MM1 input ,  MM2 input . ( all RCA ).

Output Impedance :  
2K ohms , 20K ohms minimum load.

Frequency Response: +/- 0. 25dB 20Hz to 20KHz , RIAA equalized

Input Impedance:  47K , 100K
Input Capacitance: 20P , 100P , 220P , 330P , 470P

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

EQ curve: 
RIAA , Londo , LP , CCIR , AES , NAB .

Noise: MM 85dB (shorted input) 
signal-to-noise ratio, below 1 Volts RMS output,  A weighted

Phase Mode : Normal 

Max input : MM 70mV

Distortion: Less than 0.14% at 1V RMS 1kHz output.

Tube Compliment : ECC83 x2, ECC81 x2, E88CC x1,  6X4 x1.

main 430mm x 310mm x 100mm (W x D x H) , 
power supply 160mm x 135mm x 60mm (W x D x H).

Total Weight: 10kg

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


Actual price: HKD$12,800   one set (two unit)

Add extra cost $5300 for upgrade to SE version with Hashimoto line output transformer , XLR output and normal / inverse phase control. 

Room1308, 13/F,BLK C,.  
Kai Tak FTY BLDG.   
99-101 King Fuk ST,.   
San Po Kong,   KLN,.
Hong Kong
E-mail : 
WhatsApp: 93440168   
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