Concerto Plus MC-Signature Tubes Phono Stage Eq-Ampilier


The Concerto Plus MC-Signature is top version of Concerto Plus, It work for MM and MC cartridge with external power supply, phono stage embodies the newest thinking of YS-audio dedicated and enthusiastic technical design YS Chui . The unit has MC input ( Low 71dB of gain , High 77dB of gain ) and MM input ( 48dB of gain ), and, just as importantly, the Concerto Plus MC-signature boasts an very low noise level, so in practical use, the 71dB gain is usable in systems with low overall sensitivity. It uses a EZ81(orEZ80) rectifier tube with solid state regulator for HV B+ power supply , three 12AX7 for the gain stage and  Hasimoto HM-X MC transformer for MC step-up stage . MM input is 47K ohm. The Concerto all hand made by "point-to-point" . 


Huge dynamic range, both the beautiful tone color and wonderful rhythm , 
ultra linear circuit designed for the LP and SP, it has 4 kind EQ network for select , include
RIAA , London ffrr , Columbia , SP. uncanny natural flowing heart-stirring sound that 
matches any other ultra-Fi products on the market .
The phono stage made by Hand built " point to point " on YS-Audio factory.
"point to point" has become more focused, the soundstage is deeper.
Hand built by " point to point ' is very high cost of manufacture !
The installation of the tubes line stage is special designed , it can prevent RF interfere and vibrate interfere,
It has become very clean soundstage and saw the musical instrument hang up in the air.

The HV B+ power supply is application of a highly efficient solid-state voltage regulator with EZ81 Tube for current buffer.
The EZ81 Tube opens up the soundstage and allows the music to "bloom". The melody flows naturally, like a river. 
The highly efficient solid-state voltage regulator give the very good bass controls .

The Important features

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Concerto Plus MC-TSE has a select control for select 4 kind phono EQ network : 
RIAA , London ffrr , Columbia , SP.

The RIAA EQ for prevalence LP , 
The London ffrr EQ for London ffrr LP , 
The Columbia EQ for Columbia and old NAB LP , 
The SP EQ for EU 2 Single-Play.

The Concerto Plus MC-Signature has two pair MC input , one pair MM input.
And It has two pair output , one pair is high output and one pair is low output.
All RCA connections use Neutrik.


Hasimoto HM-X Step-up MC transformer 
Some info for Hasimoto HM-X MC transformer: Hashimoto-HM-X-datasheet.pdf


Cardas coupling cap



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UniCrystal OCC (Ohno Continuous Cast) Copper wire and 
Gold-plated OFC copper wire  for inside interconnect cable.

Hasimoto Choke (made in Japan)
at HVB+ power supply.


External power supply.

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Controls : 
EQ network Selector , MC1/MC2 input select, MC gain high / low select.
MC /MM input select , Power On/Of 

Output :  High x1 , Low x1

Input :  MC1 input , MC2 input , MM input 

Frequency Response:  -/+ 0.2dB, 20Hz to 20kHz, RIAA equalized

Input Impedance: 

MC low gain: 
DC Impedance 12ohm ( for 7 ~ 40ohm internal DC Impedance of MC cartridge )
Zi Impedance 200 ohm ( for load Impedance over 100 ohm MC cartridge )

MC high gain: 
DC Impedance 3ohm ( for 2 ~ 7ohm internal DC Impedance of MC cartridge )
Zi Impedance 50 ohm ( for load Impedance over 20 ohm MC cartridge )

MM is 47K / 100P 

MM Gain: 48dB at high output , 44dB at low output.

Total gain MC step-up with MM stage:
MC gain set at low , 71dB at high output , 67dB at low output.
MC gain set at high , 77dB at high output , 73dB at low output.

Noise: MM 84dB (shorted input) , MC 79dB (shorted input).
signal-to-noise ratio, below 2.5 Volts RMS output,  A weighted

Distortion: Less than 0.2% at 2.5V RMS 1kHz output.

Maximum input : MM 50mv , MC 5mv . 

Tube Compliment : 12AX7 x3 , EZ81(or EZ80 ) x1

main 400mm x 310mm x 150mm (W x D x H) , 
power supply 160mm x 135mm x 60mm (W x D x H).

Weight: 7kg

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


Actual Price:  HK$17800



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