Nice sound for the weight of it. Considering it has an 8 inch woofer i was not expecting much bass but it does deliver some surprising sound. 
The high range is good, bass is 7/10 for the size, but should be more than enough for small restaurants or piano bars. 
The really good thing is that for only 7 kg you get a very decent clear and balanced sound. 
The on board DSP does boost the bass a little but these are not DJ speakers, nor are they designed for very high volumes. ( they do hit the limiter quite quick - even with the volume set at 12 o clock you can see it kick in if you really push them and from the 2 o clock position and higher, the limiter is on almost all the time, and the woofer does "spit" a bit trying to pump out more bass than it can - i was testing its limits, that is not how i will use it on a day to day basis ). 
Should do great for jazz / cafe concert / classical / music, and even some small parties for 50 - 100 people.. i think a pair of these can do just fine on their own. 
Worth the price.