Symphonies Plus-R  High-Definition Tubes Line Preamplifier



The Symphonies Plus-R ( with Remeto Control ) is High grade Symphonies Version , it is designed by Mr. Chui Sat Sung, 
each component is carefully built using "point-to-point" hand wiring and select grade components. 
“Alps” volume pots, “R” core power transformers, “Dale” and "Phillips" resistors, “Wima” and “Phillips” and "Rifa" coupling capacitors, 
high quality copper internal wiring, create a perfect blend of superb electronic engineering. 
The Symphonies Plus-R , pure tube preamplifier reveals crystal clear details, eloquent musicality, with absolute neutrality. 
(3) 12AX7A vacuum tubes are used in the stage , one 6x4 tubes with solid state regulator for HV B+ power supply.
Individual circuit for volume ( use "Alps"volume and "Alps" Balance ) .This circuit can update the sound of the "Alps" 
volume better than "Elma" volume.

Features

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Huge dynamic range, both the beautiful tone color and wonderful rhythm , 
ultra linear circuit of the line stage designed for the DVD - Audio and SACD source in the New Century.
uncanny natural flowing heart-stirring sound that matches any other ultra-Fi products on the market .
The Line 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 6X4 Tube rectification opens up the soundstage and allows the music to "bloom". 
The melody flows naturally, like a river. In contrast, solid state rectifiers emit 
electromagnetic pulses that resonate throughout the audio circuit and add an 
electronic haze that can be perceived as a highly unnatural noise or grain. 
The unnaturalness of the solid state rectifier's turn on/turn off cycle creates a choppy, 
edgy feeling that over-emphasizes the leading edge of transients at the expense of a 
harmonic completeness and does not allow the individual notes to rise and decay naturally.
Besider, It with solid state regulator for HV B+ power supply , the regulator give the very good 
bass controls , it become the sound better than popular Symphonies .It can fight down many
USD$4000 preamplifier !

 

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Customer Feedback for Symphonies Plus  High-Definition Tubes Line Preamplifier


Specifications

Controls : Gain , Input Selector , Balance , Power On/Of

Output :  Main RCA x2 pair , REC RCA x1 pair

Input :  RCA x4 pair

Output Impedance :   600ohm at 1K Hz( all main output)
Recommended load:  20K ohm or greater 

Frequency Response:  10Hz ~ 200KHz(-0.5dBat 5V)

T.H.D : <0.04% (20Hz ~ 20KHz /2V)

Input Impedance: 50K ohm

Gain: 12dB

S/N: >99dB

Channel Balance: <0.5dB(15Hz ~ 30KHz /max output)

Channel Separation: >70dB(2Hz ~ 30KHz)

Phase Mode : Normal

Max Output : 30V

Line-Stage Tubes : 12AX7A x3

Power Supply : 6X4

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

Weight: 5.3kg

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

USD$690
The shipping by Air post to USA and Europe is US$98
USA and Europe buyer use following Button 

 

 

Hong Kong buyer is HK$5380.

 

 

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