The Real Max Stereo

The Real Max 78W + 78W Stereo Valve Tube Power Amplifier

The Real Max is a 78W + 78W Stereo Valve Tube Power Amplifier.

It is a Class AB1 PP design power amplifier. It provides sound deep and wide stage, accompanies with reality sound image and a emotions sound presentation.

It uses two matched pair of Gold Lion KT77 power tubes and Class AB1 UL PP working status to provide 78W adequate output for most of the Hi-End Speakers to ideal performance. Moreover, the high quality output transformer combines with high performance Class AB UL PP circuit design lead to an extremely low loss, wide sequence sound effect and excellent phases output. This power amplifier case structure and parts arrangement are perfect, the signal path is directly and shortly connected. Great heat dissipation, an anti-shock and anti-RF function to guarantee it works at a very stable status. For sure, this machine is produced by point-to-point methodology.

Features

The input stage is 12AU7 direct coupling to 12AU7 driver stage to KT77 power tube , The KT77 work at Class AB1 UL P-P mode to driver Hasimoto output transformer , The Hasimoto HW-100-5 CUT CORE orient high B output transformer has very low Insertion Loss 0.15dB 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.

The two power transformer are R-Core transformer (Made in Kong Kong).
The output transformer use Hasimoto HW-100-5 CUT CORE orient high B. (made in Japan) wide frequency range , low distortion , low phase shift , good damping factor
The power supply with two separately HVB+ power supply for power output stage and input driver stage
All coupling cap use AudioCap Theta

　 The info of Hasimoto HW-100-5 CUT CORE orient high B output transformer.

Specifications

Controls
Power On/Off

Output and T.H.D :
1W per channel , 1kHz total harmonic distortion typically 0.13% (0.2% at 20Hz , 0.18% at 20KHz)
78W per channel , 1kHz total harmonic distortion typically 1.2%

Input : RCA

Input Impedance : 100K ohm is RCA

Frequency Response:

1W 20Hz ~ 100KHz ( 20Hz 0dB, 100KHZ -3dB)
95W 20Hz ~ 90kHz (20Hz 0dB , 90kHz -3dB)

Input Sensitivity : 1.7V / 78W 23.5dB Gain ( Test at 8 ohm )

Output Taps: 16 ohm ,8 ohms, 4 ohms.

Noise: Less than 0.5mV

Damping factor : approximately over 23

Phase Mode : Normal

Tubes Required for each CH:
(4) two matched pair KT77 Power Output , ( 1 ) 12AU7 Driver , ( 1 )12AU7 Input .

Dimension: 433mm x 460mm x 233mm (W x D x H)

Total Weight: 29kg

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

Actual Price:

HK$33000.

YS-Audio
Room1308, 13/F,BLK C,.
Kai Tak FTY BLDG.
99-101 King Fuk ST,.
San Po Kong,   KLN,.
Hong Kong
Tel:(852)93440168
E-mail : info@ys-audio.com
WhatsApp: 93440168
facebook : https://www.facebook.com/AudioExperienceYSaudio/