A long time I had toyed with the idea to improve the sound of our TV. Now a lot of choice on the Teufel Concept E 450 Digital 5.1 set. The delivery arrived quickly, the structure is basically simple, only the nearly 30 kg Subwoofer is the enemy of every postman .... here 2 persons for carrying that are necessary. The manual is written very understandable since I've seen another. So the system is set up quickly and ready for use. When you first try I was thrilled, the down-firing subwoofer the bass from the soil and provide best cinematic experience. In our family house not a problem in an apartment building the powerful subwoofer could cause some resentment ;-) But even the relatively small satellites for the price perfectly fine and can be set individually. The only downer was the remote control, this was in fact supplied defective. After a call in hell I immediately got a new bureaucratic sent, which then also funzte. Conclusion: A great sound system for relatively narrow money. Suitable for slightly larger rooms to note is that the subwoofer with the dimensions of approx. WxHxD 40x62x40 properly requires space. Overall, thumbs up!