Concerto Plus MC Tubes Phono Stage Eq-Preampilier

The Concerto Plus MC is work for MM and MC cartridge phono stage embodies the newest thinking of YS-audio dedicated and enthusiastic technical design YS Chui . The unit has MC input ( 66.75dB of gain ) and MM input ( 47dB of gain ), and, just as importantly, the Concerto Plus boasts an low noise level, so in practical use, the 73dB gain is usable in systems with low overall sensitivity. The Concerto uses a 6X4 rectifier tube with solid state regulator for HV B+ power supply , three 12AX7 for the gain stage and Jensen 44K-XD MC transformer for MC step-up stage. MM input is 47K ohm. The Concerto all hand made by "point-to-point" . 

Features

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 6X4 Tube for current buffer.
The 6X4 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

cpmc2i.jpg (356298 個位元組)
The Concerto Plus MC 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.

cpmc2f.jpg (430209 個位元組)
The Concerto Plus MC has two pair input , one pair for MM cartridge , one pair for MC cartridge with input select .
And It has two pair output , one pair is high output and one pair is low output.

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Jensen 44K-XD Step-up MC transformer 
Some info for Jensen 44K-XD Step-up MC transformer:
44kdx.pdf
MC_table.pdf

coupling cap use Sonicap and Philips

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See Customer Feedback for CONCERTO Plus MC-SE Enter There

cpmcrr1.jpg (848950 個位元組) cpmcrr2.jpg (890320 個位元組) Review by HiFi review.

　

　

Specifications

Controls : EQ network Selector , MC /MM input select,  Power On/Of 

Output :  High x1 , Low x1

Input :  MC input , MM input 

Frequency Response:  -/+ 0.5dB, 20Hz to 20kHz, RIAA equalized

MC Step-up Input Impedance and gain: 
for 20 ohm ~  430ohm load impedance of MC cartridge , step gain is 19.75dB

MM Gain: 47dB at high output , 43dB at low output.
Total gain MC step-up with MM stage:
MC 66.75dB at high output , 62.75dB at low output.

Noise: MM 79dB (shorted input) , MC 73dB (shorted input).
signal-to-noise ratio, below 2 Volts RMS output,  A weighted
Distortion: Less than .07% at 0.5V RMS 1kHz output.

Maximum input : MM 50mv , MC 5mv . 

Tube Compliment : 12AX7 x3 , 6X4 x1

Dimension:  
main 400mm x 310mm x 80mm (W x D x H) , 

Weight: 5.2kg

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

Direct Price : HK$6900.
Hong Kong buyer use following Button
(HK$6900 and free shipping , Post office ship to your H.K. address. )

　

　

　

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 
 WhatsApp: 93440168   
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