What is clear is that there is no AV receiver is not included, so you need to be even extra-purchase, if you do not anyway a. Devil Consono works with basically every receiver, so for me is the appearance. I've tried it with Onkyo TX-NR414, with Yahama RXV373 and RX-V475 Yahama. With all it was just great sound. In the end I opted for RX-V475 Yahama. On the website of the devil, there is a whole list of suggestions.
It is further noted that even no cables are supplied. What for, everyone needs other lengths and can be cut to slightly when a cable reel speaker cable buys. Devil himself offers as well 15 and 30 meters for sale. (And finally, an RCA subwoofer cable.) Here I would strike but with other manufacturers. The terminals on the back of the boxes, although may not be the best way to secure the cables. But in principle it does not matter, they sit rock solid and deliver full quality transfer. Somewhere, the price needs to come from somewhere also, the price / performance ratio is here anyway above average.
The bass cabinet finally has a built amplifier, volume control and can be set to the "Auto" setting, whereby it automatically and goes out. The Auto setting is tricky, because it sometimes takes minutes, until it gets a signal that it is interpreted as a command to turn on, it depends on the frequency content of the current program. I saw him now rather permanently, even if it needs more power. He is of the 6 boxes of (of course) only one who needs to be connected to the socket.
The area for which the facility is provided by the way has in me a size of only 15 m². Consono 25 is, as the name implies, designed for up to 25m². So you should choose the devil Consono set according to its area size.
I really can not find a single significant negative point, so I can only express a wholly owned buy recommendation! If anyone has questions, he should feel free to ask.