Cons:
> The front consists of a very thin fabric. This can happen to sound very good, but can also be very easily tear if you're careless.
> The back has a how today so common, piano lacquer effect. This surface looks new super-chic, but with time allows the appearance but then sharply after. One recognizes fingerprints, light scratches or dust particles immediately.
> The cable is a bit too thin for my taste. Everything works, but more in diameter would give more confidence.
PRO:
> The speakers are very easy to connect.
> The right box has (from left to right) an input and Ausschaltdrehknopf, a volume control, a sound controller. All controls feel solid. Nothing is loose or noisy when turning.
> On the far left is an orange LED as light (on / off). This is to be recognized light enough to clear but not too bright that it blinds.
> On the far right there is an AUX input. With a 3.5mm jack you can here his mp3 player or whatever fast connect times without the same having to separate the boxes from the PC.
> The state of boxing is safe, thanks to rubber pads on the bottom of the boxes do not slip so easily and scratches are also avoided.
> Design: as always a matter of taste. I like it. A kind of pyramid is something else and looks very chic.
> Sound: In view of the fact that the boxes do not even cost 30 EUR and are very compact, the sound is really very good! The bass comes over felt that centers are balanced and the highs are clean and adequate presence. Prerequisite for clean highs: turn the "Tone" knob all the way to the right, otherwise the sound is very muffled.
About the technology:
> Pro Box work here two membranes: the bottom is a simple full-range speaker, who is responsible for the entire sound spectrum. Instead of a bass reflex tube, here a passive membrane is used (upper speakers). The lower the speaker output to the rear sound drives the top speakers. This works very well - similar to the speaker system from Logitech (X-140). The bass is very good for the size and at a short distance one might almost speak of "deep bass".
Conclusion:
For the money, this speaker system is highly recommended. Super sound, simple technique, everything works fine and is solidly built. Alternatively, I can only recommend the X-140 Logitech, the gratitude metal front and thicker cords look even more solid.