The Real Power Amplifier MK2
The new design input stage is 6DJ8 tube use coupling caps ( use V-Cap CuTF ) to 6C45PI driver tube working at SE mode to driver Hasimoto A-105 Interstage transformer , The interstage transformer driver to two pair 300B power tubes work at Class A P-P mode to driver Hasimoto output transformer , The Hasimoto special grade (HW-60) CUT CORE orient high B output transformer has very low Insertion Loss 0.2dB only. ( Many tube power amplifier in Hi-End audio market , Their have the output transformers is over 1dB Insertion Loss . only about 10% very high price tube amplifier use under 1dB Insertion Loss of output transformer ) . The output transformer has low insertion loss is very important , the best of the best is 0 dB Insertion Loss , The output transformers for High End tube amplifier need under 1dB Insertion Loss . The Insertion Loss over 1.5dB output transformer will lost many low level music.
The power supply with two separately HVB+
power supply for power output stage and input driver stage:
One Hasimoto power transformer with Hasimoto choke and highly efficient solid-state regulator for input driver stage.
Other One Hasimoto power transformer with Hasimoto C-core choke and two GZ34 rectifier tubes for power output stage.
THE REAL power amplifier support use
300B or EML 300B-XLS or EML 320B-XLS.
It use 300B is Class A 40W, use EML 300-XLS or EML 320B-XLS is Class A 55W.
The use highest quality transformers and parts .
Output and T.H.D :
Input : RCA x1
Input Impedance : 100K ohm
Noise: Less than 0.9mV
|Input Sensitivity: 0.95V RMS rated output (40W) , 25.5dB gain (test at 8 ohm)|
|Output Taps: 4 ohm , 8 ohm , 16 ohm.|
|Damping factor : approximately 32|
Tubes Required for each black:
( 4 )two matched pair 300B Power Output , ( 1 ) 6C45PI Driver , ( 1 )6DJ8 Input , ( 2 ) GZ34 rectifier tubes .
Phase Mode : Normal
Dimension: 455mm x 420mm x 245mm (W x D x H) each
Power Source: 110-117/220-240V,50/60Hz
HK$79,800 for with
Gold Lion 300B , 40W Class A output.
HK$91,300 for with EML 300B , 40W Class A output.
HK$96,300 for with EML 300B-XLS or EML 320B-XLS , 55W Class A output.
Room1308, 13/F,BLK C,.
Kai Tak FTY BLDG.
99-101 King Fuk ST,.
San Po Kong, KLN,.
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