SONATAS - Reference  60W+60W Stereo Valve Tube Power Amplifier

Retired Product

Audio Experience SONATAS - Reference  is a 60W + 60W Stereo Valve Tube Power Amplifier.
It uses one matched pair of KT88 power tubes and UL working status to provide RMS 50W adequate output for most of the Hi-End Speakers to ideal performance. Moreover, It use the high quality output transformer ( TANGO . 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 .


   The input stage is 12AT7 SRPP direct coupling to 12AU7 driver stage , The driver stage use high quality capacitors to Gold Lion KT88 power tube , The KT88  work at P-P UL mode to driver TANGO XE-60-5  high quality output transformer , The XE-60-5 output transformer has very low Insertion Loss 0.21dB 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 Sonatas-Reference have RCA and Balanced two version, the price is same.

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


sonref14.jpg (99362 個位元組)  sonref1.jpg (102275 個位元組)   sonref15.jpg (99552 個位元組)  sonref2.jpg (94640 個位元組)  

sonref9.jpg (126244 個位元組)  sonref12.jpg (135828 個位元組)   sonref3.jpg (103024 個位元組)  sonref6.jpg (119065 個位元組)  sonref7.jpg (88192 個位元組)    


Output :  RMS 60W/30Hz , MAX 100W .

Input :  RCA one pair. ( Balanced version : XLR one pair )

Input Impedance :  100K ohm  ( Balanced version: 200K ohm )

Frequency Response at 40W:  15Hz ~ 30K Hz ( +/- 0dB )    ,   10Hz ~ 100K Hz ( -1dB )

Input Sensitivity :  1.4V / 50W

Output impedance : 4 ohm / 8 ohm / 16 ohm                                       

S/N: >110dB
Damping factor : approximately over 15

Phase Mode : Normal

Tubes Required: One Matched pair KT88 Power Output , ( 1 ) 12AU7 Driver , ( 1 )12AT7 Input .

Dimension: 420mm x 335mm x 220mm (W x D x H)

Total Weight: 21kg

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

Retired Product



Room1308, 13/F,BLK C,.  
Kai Tak FTY BLDG.   
99-101 King Fuk ST,.   
San Po Kong,   KLN,.
Hong Kong
E-mail : 
WhatsApp: 93440168   
facebook :