I decided to upgrade my speaker gear, so I sold my old 2x10" active speakers. I play electric guitar and I sing using backing tracks. I thought about giving a try to the 602s for better sound spreading and hopefully clearer, since the subwoofer cabinet is made out of wood.
I purchased one unit to try it first and when I tested it, I ordered one more. I was surprised when I opened the box, from the built quality. When I turned on the unit, I realized that the sound is crisp clear, with very nice tight deep bass. Although I was unsure about the volume power that seemed not powerful enough.
So I took it outside on the street and tested it even at full volume. I then understood that it is strong enough and the wide sound spread that it has, makes you think that it's not powerful enough, but finally I was satisfied and ordered the 2nd unit.
I waited to go on a few gigs first, in order to give my review feedback. So after 3 gigs at a hotel lounge bar with 100 people and a gig at an outdoor restaurant with 100 people as well, I can say that they are loud enough and the comments from the people were all very good about how crisp clear they sound and that they feel very pleasant to their ears!
At first I used them at the "flat" setting but then I tried at "anti-feedback" and I keep them there because my mic is not making any noise.
The only negative I can think of, is that on the top speaker, there is not a tightening bolt or something to keep it steady and there is a wobble. I knew this issue before I got them, from other reviews referred on this, so I placed some adhesive paper tape on the top of the pole and problem solved.
(In my opinion, get Thomann's cover set for 602's, they are great and the don't cost as much as half of a 602 unit like the original Db covers do!).
(Update after 6 months of daily use): Everything works great, except the speak-on cable which occasionally stops the sound from the top speaker. I suggest a Cordial speak-on cable as a spare cable.