SONATAS - SE MK2 Stereo Valve Tube Power Amplifier

Audio Experience SONATAS - SE MK2 is Stereo Valve Tube Power Amplifier.

It uses one matched pair of TUNG-SOL KT150 power tubes and UL working status to provide RMS 66W adequate output for most of the Hi-End Speakers to ideal performance. Moreover, It use the high quality output transformer ( Hasimoto made in Japan).
Huge dynamic range, both the beautiful tone color and wonderful rhythm , ultra linear circuit of the valve tubs power amplifier 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 .

Features

The input stage is 12AT7 SRPP direct coupling to 12AU7 driver stage , The driver stage use high quality capacitors to KT-150 power tube , The KT150 work at P-P UL mode to driver Hasimoto HW-60-5 high quality output transformer , The HW-60-5 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 bias adjust of power tube is very easy , all bias test point and bias adjust at top of amplifier , you not need open the amplifier for adjust the power tube bias.

The components , NFB value , tube type , circuit all select by listen test.

The power transformer is Poshan (made in Kong Kong) Z11 EI core.
The output transformer is Hasimoto HW-60-5 CUT CORE orient high B output transformer , made in Japan
All coupling cap use Sonicap

The info of Hasimoto HW-60-5 CUT CORE orient high B output transformer.

Specifications

Output :
1W per channel , 1kHz total harmonic distortion typically 0.18%(0.23% at 20Hz , 0.18% at 20KHz)
66W per channel , 1kHz total harmonic distortion typically 1.3%

Input : RCA

Input Impedance : 100K ohm

Frequency Response:

1W 20Hz ~ 61kHz (20Hz -0.2dB, 61kHz -3dB)
66W 20Hz ~ 55kHz (20Hz -0.6dB , 55kHz -3dB)

Input Sensitivity : 1.1V / 66W

OUTPUT TAPS: 8 ohms, 4 ohms. It can offer 16 ohm output .

S/N: >100dB

Damping factor : approximately over 18

Phase Mode : Normal

Tubes Required: One Matched pair KT150Power Output , ( 1 ) 12AU7 Driver , ( 1 )12AT7 Input .

Dimension: 430mm x 300mm x 160mm (W x D x H) each

Total Weight: 22kg

Power Source: 110-117 or 220-240V,50/60Hz

Actual Price: HK$19,930

YS-Audio
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