SONATAS 40W+40W Stereo Valve Tube Power Amplifier

Retired Product

Audio Experience SONATAS is a 40W + 40W Stereo Valve Tube Power Amplifier.

It uses one matched pair of EL34 power tubes and UL working status to provide RMS 40W 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 U-405 high quality output transformer , The U405 output transformer has very low Insertion Loss 0.29dB 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.

SONATAS Full TANGO Version.

This version upgrade the power transformer to use TANGO (Japan) transformer.

The power transformer is special audio R-core transformer , high current , low noise .
The output is TANGO U405 made in Japan .

Specifications

Output : RMS 40W , MAX 55W .

Input : RCA one pair.

Input Impedance : 100K ohm

Frequency Response at 30W: 20Hz ~ 20K Hz ( +/- 0dB ) , 20Hz ~ 100K Hz ( -1dB )

Input Sensitivity : 1.4V / 40W

Output impedance : 4 ohm / 8 ohm It can add 6 ohm and 16 ohm output .

S/N: >100dB

Damping factor : approximately over 15

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: 12kg

Power Source: 110-117/220-240V,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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