I use these speakers for a year and frankly I was pleasantly surprised. Like many I was hesitant to buy BEHRINGER after hearing everything and its opposite. I tried other products such as WHARFEDALE (Titanium 12) or PHONIC YAMAHA MSR250 MSR 400 and EUROLIVE B212D and are a good compromise. They were used 3-4 times a month for 4 hours at a good volume level each time without any problems. The adjustment of the bass and treble pots is sensible and the knobs are nickles [translator note:???!]. The construction is solid, German spirit and Chinese construction. Too bad there's no cover because I carry them in the original packaging. D Series Digital is lighter than the A series (2 kg less). I like the sound, robust and highly optimized design. If I had to do it all over again, I would without hesitation. Now I have my opinion and it is BEHRINGER! Thank you for having invented the music for the poor