[Update late 2013] I have now changed my whole sound installation and as the housing for omega magnate 380 used and there it has nothing to do with my previous two boxes, a good subwoofer changes everything .
The impacts are well vibrate my body and what a feeling it's amazing hc in the low infra is indispensable hc once we tasted it we can not go back.
So I will slightly change my opinion with the experience I gained and retreat.
What I can say about this little box is that for the price, it provides little Yamaha, the box lacks a bit of punch especially hifi and does not go down very low (28Hz) that is wrong with the Yamaha Figures are for 10db thus its true bass response to 38Hz is located along the SW515 I had was advertised at 20 hz but it went down to 30hz maximum in reality.
The physical impact is very limited or non-existent depending on the placement or the listening room is quite normal for a 20cm bowl, but he can cash out and clean enough good bass from 38 Hz to 120Hz anyway no boom boom boxes like all-in-one supermarket (sony, samsung and company) especially at this low price.
Still to +/- 100 euro, I do not think there is better and it comes down to a lower ear hair than his competitors even slightly more expensive.
The power of 75W is sufficient to saturate do you have to go hard or have a large room, but this box is ideal for small rooms, undersized for medium and large rooms.
To get started in the world of home cinema is not bad.
However if you have columns that descend not bad in terms of bass woofer with a 20 cm for example, this box will show its limits fairly quickly and will struggle to win.
My play is + - 30 sqm and the box was struggling to fill the space I had to push and I could do saturate / hound 3/4 the volume of the amp but it will hold small parts the hit on the majority of movies even high volume here to see depending on the size of your room and the speakers otherwise I advise you the opportunity to see if you can get a good box with a speaker 25 or 30 cm minimum ..
