"I arrived during the week, in Super packaging, but there were still small scratches on the case, apparently before they were transported. Soldering as a whole is good, everything is reliable and shiny, but one electrolytic tip immediately fell off, burned, there was no problem. The cooler is spinning depending on the voltage, the bigger it is, the more speed, I wanted a constant 12 volts on it, but because of the dispersion plans changed to install a cooler termodator, who also arrived in one package with a block. Basically and so good. I installed a power connector and a button on the back of the case. Everything is fine, for USIA on tpa3116 most that. Voltage adjustment is small from 15 to 27, on my previous one was 3.5-27.5в, perhaps it is in the potentiometer. In general, I recommend for those who do not want to bother with blocks for amplifiers."