Special Custom-made Product
The Reference grade 211 SE power amplifier .
Completed 9/2011
Owner :Mr 孙 ( Beijing , China )
The Reference grade power amplifier .
Completed 11/2010
Owner :Mr Jonas (Canada)
300B x4 PP mono block power amplifier
output transformer Tango XE-60 grade (60W)
for 300B x4 output.
Tango LC grade Choke.
Tango power transformer.
Output : 40W watts from 20Hz to 20kHz +/- 0.5dB.
Input : RCA x 1
Input Impedance : 100K ohm
Frequency Response: 8Hz ~ 50K +/-1dB at 1W.
S/N: ＞105dB
Input Sensitivity: 1.4V RMS rated output.
Output Taps: 4 ohm , 8 ohm , 16 ohm.
Damping factor : approximately 20
The Reference grade power amplifier .
Completed 8/2010
Owner : Mr Lap (Hong Kong)
EL156 x4 PP Mono Block Power amplifier.
120W at 30Hz , Max 200W .
Complement :
Tango FC-120-5 output transformer , Tango
LC-5-250D Choke , Sowter main transformer.
Jensen input transformer , V-cap coupling caps, Cardas RCA and speaker
connections.
Input tube 12AU7 , Driver tube 12AU7 , Power tube
Telefunken EL156 x4.
Mr Lap use they drive MBL 101 MK2 speaker.
The Reference grade Phono preamplifier.
Completed 12/2009
Owner : Mr Lap (Hong Kong)
It is TOP Reference grade Phono preamplifier.
It will a new product to 2010 , The product series name is "THE REAL"
The mono block with power supply of 4 unit design.
It use T-LC type EQ design, the T-LC Type is best method for revive phono EQ, but the cost is highest.
It uses 12AX7 , WE396A for input stage with TANGO line output , special made T-LC type RIAA EQ , WE417A with TANGO output stage.
Specifications:
Controls
Power Supply : Power On/Of .
Main Unit : Output XLR / RCA , Phase Normal / Inverse , Input MC/MM , MC Gain
High/Low , MC Input 1/2 , MC1 impedance select , MC2 impedance select.
Output : 1 pair Main XLR , 1pair Main RCA.
Input : MC1 input , MC2 input , MM input ( all RCA ).
Output Impedance : 600 ohms ( XLR and RCA same ) , 600 ohms minimum
load.
Frequency Response: -/+ 0.2dB 20Hz to 20KHz , RIAA equalized ( -3db
at 65khz )
Input Impedance: MC can change by input module, MM is 47K / 100P ( can change by
input module ).
Gain: MC low 78dB , MC high 85dB , MM 55dB.
Hum and Noise: 95dB below 10mV input MM.
Phono Overload: MM 180mV.
Tube Compliment : 12AX7 x2 , WE396A x2 , WE417A x2 , 6X4 x2
The Reference grade power amplifier
Completed 7/2009
Owner : Mr Derek Lam ( Hong Kong )
Mr Derek Lam is using AVALON Eldolon Diamond speaker at 250sf .
These pair amplifier are design for he.
The amplifier use 2 pair KT88 pp and TANGO FC-120-5 ouput transformer at each block.
Full balanced design.
Output Power :
RMS 120W / 32Hz sine wave.
The PX25 P-P power amplifier
Completed 6/2009
Owner : Mr Costa (UK)
The PX25 P-P power amplifier .
Output Power :
RMS 15W / 30Hz sine wave , Max 20W / 30Hz.
Transformer complement :
Output Tango XE-60-5P , Interstage Tango NC16 ,
Choke LC-3-350 , R-Core main transformer.
Owner Mr Costa offer the tubes and tubes sockets .
The LC Type phono stage preamplifier
Completed date: 11/2008
Owner : Mr Chan ( H.K. )
The LC Type is best method for revive phono EQ, but the cost is highest.
This phono can help me go a new LP world.
It use 12AX7 , WE396A for input stage, Western Electric line output , special made LC type RIAA EQ , WE396A output stage.
45dB gain for MM , 47K Input Impedance .
Output Impedance : 650 ohms Balanced ,
325 ohm SE Main.
Recommended load: 18K ohm or greater ( Balanced ) , 9K ohm or greater ( SE
).
Frequency Response: +/- 0.20dB, 20Hz to 20kHz
We are planning this phono stage to accept order.
Please e-mail to me , if you have question about this phono stage.
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