Fx audio
Surprising:
-price = final sound = great!

Construction:
- solid metal and decently heavy for its dimensions. The connector from the power supply could have been solved better - it moves after insertion. The backlight of the electronics could have been omitted by the manufacturer. In the forums, they criticized the volume control, that it clicks and the like, nothing like that happens. The volume is controlled smoothly and goes smoothly into performance.

Connected options:
-Rca and Phono, solid speaker terminals

Sound:
-tried and listened to for several tens of hours until the electrons burn out (100h). I replaced the original supplied tubes with Russian 6P1P (6П1П) = 6P1 (China)
and 6Ž1P-EV (6Ж1П-EB) VOSKHOD = 6j1 (China). The result? I definitely recommend! Why? The sound device shows the purity, space, depth of the music scene (tested on Tannoy M2, Triangel BR2 .. + device Marantz Se63, Yamaha dvd796, Akai gx32, Tesla NC470, Dynavox RCA + Repro cabling (I recommend both from Audiophonics)). It's surprising to listen to a device that doesn't get tired even after a few hours. You're just devouring music of various genres, whether it's Soul, Jazz, Rock, Classic, Pop .. the device can handle and offers what is expected of an electronic device - the warmth of serving in the form of music.
You can say okay, but what about the power 2x2.5W? I also thought it would be such a "weaker coffee". The space of 30-50 m2 will completely cover with music.

UK
Surprising:
-price = final sound = great!

Construction:
- solid metal and decently heavy for its dimensions. The connector from the power supply could have been solved better - it moves after insertion. The backlight of the electronics could have been omitted by the manufacturer. In the forums, they criticized the volume control, that it clicks and the like, nothing like that happens. The volume is controlled smoothly and goes smoothly into performance.

Connected options:
-Rca and Phono, solid speaker terminals

Sound:
-tried and listened to for several tens of hours until the electrons burn out (100h). I replaced the original supplied tubes with Russian 6P1P (6П1П) = 6P1 (China)
and 6Ž1P-EV (6Ж1П-EB) VOSKHOD = 6j1 (China). The result? I definitely recommend! Why? The sound device shows the purity, space, depth of the music scene (tested on Tannoy M2, Triangel BR2 .. + device Marantz Se63, Yamaha dvd796, Akai gx32, Tesla NC470, Dynavox RCA + Repro cabling (I recommend both from Audiophonics)). It's surprising to listen to a device that doesn't get tired even after a few hours. You're just devouring music of various genres, whether it's Soul, Jazz, Rock, Classic, Pop .. the device can handle and offers what is expected of an electronic device - the warmth of serving in the form of music.
You can say okay, but what about the power 2x2.5W? I also thought it would be such a "weaker coffee". The space of 30-50 m2 will completely cover with music.