SONATAS - SE 45W+45W Stereo Valve Tube Power Amplifier

Retired Product

Audio Experience SONATAS - SE is a 45W + 45W Stereo Valve Tube Power Amplifier.

It uses one matched pair of EL34 power tubes and UL working status to provide RMS 45W 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 .

Features

The input stage is 12AT7 SRPP direct coupling to 12AU7 driver stage , The driver stage use high quality capacitors to EL34 power tube , The EL34 work at P-P UL mode to driver TANGO FX-40-5 high quality output transformer , The FX-40-5 output transformer has very low Insertion Loss 0.24dB 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 Hong Kong) Z11 EI transformer.
The Tango FX-40-5 output transformer.

Specifications

Output and T.H.D :
1W per channel , 1kHz total harmonic distortion typically 0.1% (0.26% at 20Hz , 0.25% at 20KHz)
45W per channel , 1kHz total harmonic distortion typically 1%

Input : RCA

Input Impedance : 100K ohm

Frequency Response:

1W 20Hz ~ 100kHz (20Hz 0dB, 100kHz -2dB)
45W 20Hz ~ 80kHz (20Hz -2dB , 100kHz -3dB)

Input Sensitivity : 0.9V / 45W

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 EL34 Power Output , ( 1 ) 12AU7 Driver , ( 1 )12AT7 Input .

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

Total Weight: 19kg

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

Retired Product

YS-Audio
Room1308, 13/F,BLK C,.
Kai Tak FTY BLDG.
99-101 King Fuk ST,.
San Po Kong,   KLN,.
Hong Kong
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