I just got a GK 115 GLX to go with my 210 GLX. I honestly don't have any issue with the sound quality out of them. They have some really nice punch out of them and some really nice, warm low end thanks to my new 115. For the price I honestly don't see what the big problem is. They certainly are much MUCH better than the BLX series.
By the way, I have an SWR 350X amp behind them.
By the way, I have an SWR 350X amp behind them.