Balaned P2 Tubes Phono Stage Eq-Preampilier


Balanced P2, phono stage embodies the newest thinking of YS-audio dedicated and enthusiastic technical design YS Chui . The unit has MC input ( Max 68.25dB of gain ) and MM input ( Max 48,5dB of gain ), and, just as importantly, the Balanced P2 boasts an low noise level, so in practical use, the 75.5dB gain is usable in systems with low overall sensitivity. It uses a 6X4 rectifier tube with solid state regulator for HV B+ power supply , three 12AX7 for the gain stage and two 5687WA/B drive Jensen output transformer consist output stage provide true balanced output. Jensen MC step-up transformer provide true balanced input .This MC step-up transformer can good match for 1.5ohm ~ 40ohm output Impedance of MC cartridge . MM input is 47K ohm. The Balanced P2 all hand made by "point-to-point" . 

Features

 

p2i1.jpg (582576 個位元組)

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.

 

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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

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The Balanced P2 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.

 

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The Balanced P2 has two pair MC input with both RCA and XLR , one pair RCA for MM input .
The output with both RCA and XLR 

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Jensen MC step-up transformer provide true balanced input .
This MC step-up transformer can good match for 1.5ohm ~ 40ohm
output Impedance of MC cartridge.

 

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Phase select switch Normal / Inverse
Gain select switch with 6 position : 1 is MC 68.25dB / MM 48.5dB , 2 is MC 67.25dB / MM 47.5dB , 3 is MC 66.25B / MM 46.5dB , 4 is MC 63.75dB / MM 44dB , 5 is MC 61.75dB / MM 42dB , 6 is MC 57.75dB / MM 38 dB

 

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The two 5687WA/B drive Jensen output transformer consist output stage provide true balanced output.

 

External power supply.

All RCA connections use Neutrik , coupling cap use Sonicap and Oil cap.


p2_1.jpg (108443 個位元組)  p2_2.jpg (107187 個位元組) 


Racewong report ~尋找唱放之路 YS audio Balance P2 Phono

部YS AUDIO BALANCE P2好夾我部ARC前級


 

Specifications

Controls : 
Power Supply : Power On/Of .
Main Unit : Phase switch  Normal / Inverse , MC/MM input switch , MC input 1 / 2 switch.
EQ network Selector , Gain select . 

Output :  RCA one pair XLR one pair

Input :  MC1 input ,  MC2 input, MM input 

Frequency Response:  -/+ 0.25dB, 20Hz to 20kHz, RIAA equalized

MC Step-up Input Impedance 
1.5 ~ 40ohm internal (output ) Impedance of MC cartridge

Gain: 
1 is MC 68.25dB / MM 48.5dB , 2 is MC 67.25dB / MM 47.5dB , 3 is MC 66.25B / MM 46.5dB , 4 is MC 63.75dB / MM 44dB , 5 is MC 61.75dB / MM 42dB , 6 is MC 57.75dB / MM 38 dB

Noise:  MM 85dB (shorted input) , MC 84dB (shorted input).
signal-to-noise ratio, below 1 Volts RMS output,  A weighted

Distortion: Less than .06% at 0.5V RMS 1kHz output.

Maximum input: MM is 50mv , MC is 5mv .

Tube Compliment : 12AX7 x3 , 6X4 x1 , 5687WA/B x2

Dimension:  
Main unit , 455mm x 350mm x 120mm (W x D x H) 
power supply 160mm x 135mm x 60mm (W x D x H).

Weight: 10kg

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

Price : HKD$18000

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