last update: 2/10/07
Turntable: new: Sota Saphire, SME 3009 S2 Improved,Denon DL -103R cartridge. Excel ES-70EX,
old: Thorens TD 160S, Grace 707 tonearm, Grace cartridge
Phono-stage: Most Recent upgrade, Sun Audio SVPE - 700CR + SAT -1000 Step Up Transformer
Pre-amp: Sun Audio SVC - 500
Amplifier: Sun Audio Power SV-300BSM
Digital-to-Analog: Mark Levinson DAC 360
CD transport: new: Mark Levinson 31.5 Transport
old: Teac P - 30 Transport
Speakers: Sonus Faber Electa Armator II Speaker & stands
Racking: Local to Singapore, marble slabs
Power conditioner: AudioPrism
Interconnects: MIT XLR cables
Speaker cables: XLO type 5 speaker cable
Power cords: JPS, PSBAmplifier and Pre-Amplifier details:
Pre Amp SVC-500.
All of the transformers (Power, Choke and Input/Output) are specially
manufactured by Tamura Corp.
A hard-wired is mainly used for the circuit. In addition, Printed Circuit
Board is used in a little part (amplification section) only.
Power AMP Mono : SV-300BSM
Ultra big size transformers are used for both Output and Power supply.
Double choke transformers are used with Triple metallized polypropylene
capacitors for the plate voltages.
All of the transformers are specially manufactured by Tamura Corp.
A hard-wired is used for all of the circuit. (which means no Circuit Board.)
Specifications for SV-300BSM
Tubes 300B x2, 6SN7GT x1, 6V6 x1, 5U4G x1
Circuit Design Single-Ended class "A" operation without negative feedback
Power Output 15W
Input Impedance 100k ohm (unbalance), 600 ohm (balance)
Input Sensitivity 600 mV
Output Connections 4, 8, 16 ohms
Frequency Response 16-28kHz/-1dB, 10-30kHz/-3dB
Noise level less than 1.4 mV
Power Supply 100, 120, 220-240 VAC can be accepted at 50/60Hz
AC Connector Equipped built-in noise filter with detachable AC cord
Dimensions W450/H210/D350 mm
Weight 28 kg
300B tubes are driven through the interstage transformer.
Also, 300B tubes are connected to the interstage transformer in parallel.
Patrick Ng ( Singapore )