These criteria are met fully from this little amplifier.
From the small size I was very surprised when unpacking. And the processing (all metal except for the buttons) also has a high quality.
The sound and the volume is absolutely super. So good I never expected it. The sound quality is also much on the speakers. Here one should not save and the Ohm Information 4-8 Ensure also. (I use Older Aiwa speakers with 6 ohms)
Only change the volume level it scratches some which did not really bother as this is so often not done so often;)
The setting for the bass and treble are good though both must be quite high rotated to enable a high volume.
The deduction of points there is the 400 watts as in the description are not possible, but this should also be clear to everyone. In the instructions which will be sent via e-mail and 37 watts RMS power per channel is.
From me a strong buy recommendation !!!