Please find reviews below
http://www.ayonaudio.com/reviews/amplifier.html
Ayon Audio Helios Stereo Power Amplifier Specifications:
Class of Operation | PSE-HC Triode, Class-A |
Tube Complement | 4 x 6C33 |
Load Impedance | 4 & 8 Ohms |
Negative Feedback | 0dB |
Bandwidth | 10Hz – 60kHz |
Output Power | 2 x 40 Watt |
Input Impedance | 100 KΩ |
Frequency Response | 10 Hz – 50 kHz |
S/N ratio | 92 dB |
Input sensitivity (full power) | 600 mV |
NFB | 0 dB |
Inputs | RCA & XLR |
Dimensions (WxDxH) cm | 51x41x25 cm |
Weight per unit | 51kg |