After a very long lead time I finally get tested and the same time the amplifier. From given occasion with the new "Plectrumelectrum" by Prince and JBL Control One. First of all about performance. Compared with a 2x28W amplifier it is much quieter. So the 2x50W 2x25W are rather effective. Nevertheless, the performance compared to the size of the device is amazing. Mainly because he distorted even at maximum purchase and no clipping has. Had I held when looking at the device and the power supply is not possible. Its sound is equally impressive. A very good transparency. Dry bass and very clear and remote heights. In the middle then but rather average. Overall, however, balanced. Since there is nothing to complain about. However, the amplifier switches with me temporarily from for a second. This is at the level of the input signal. It does not matter, as adjusted according to the amplifier. However, it is still a mystery to me. With the violence at the beginning of Bass "Whitecaps" he has no problems. With the individual but quieter intro of "Boytrouble" there is. Apparently he does not like violent level rashes. Have the input signal something runtergepegelt (ie below standard) and the problem is gone. But because he is also quieter. Am glad that I have the opportunity to adjust the input level. If you directly connect an MP3 player or other, you can not stop. That's why "unfortunately" 2 stars less. It remains to say that I find the illuminated volume control nice, but the blue light is virtually invisible. The equipment comes from China and which also acts something like that. Fret not have to think about the price, but it is not a bargain, too.