The Yamaha DXR (7 year warranty) is the competition to the QSC K Series (6 year warranty). The Yamaha DSR compares to the QSC KW Series.

Humans are always looking for something better. A better vehicle... House... Shoes... Trumpets... Keyboards... And speakers.

I would buy a second DXR12. Then you could be in stereo. And since I have 2 ears, I'm in stereo. The keyboard's samples are done in stereo. There will be a difference to you but your audience will love you no matter what. As long as you are good. They will feed off of your joy while you perform in stereo!!

I always use 2 Yamaha DXR10 speakers in stereo. As long as the audience can hear us and we are not too loud, we all have success. My Motif and Pa900 sound great through the DXR10 stereo combination for 90% of our gigs. Add a sub and they shine even more.

If I bought the QSC K10 in the first place, then I would tell you that they work great. We always want to think ours is best and not what it is... Just different but close.