I own 3 $WR cabs- a Big Bertha I usually gig with, A Triad which I used to gig with and a Goliath which I occassionaly gigged with. I love the Big Bertha and the Triad. I like the Goliath. Then again the 10's aren't exactly my thing... baby. The cabs get a thumbs up from me.
I bought 2 $WR amps in 2000-01. When they worked, they sounded awesome... when they worked... A Bass 750 that blew up with about 3 hours of playing time (both at practices, and never at 'outdoor festival volume'), and just never worked right afterward and then an SM-900 to replace the Bass 750. The SM-900 had a litany of problems from the "mystery screw" in the amp right off the bat, to the DI being wired improperly from the factory, to the either bad power LED or cold solder joint, to the bad fuse well, to THE M-F'IN OVERHEATING ISSUES. That amp has overheated or blew output fuses when being used for more than an hour. I ended up installing a fan in the rack to remove the hot air. I also keep fuses taped to the wall of the rack. I haven't had any problems with it since installing the fan.
My theory is that someone didn't take into account the air flow inside the amp and inside the rack- The air is passively drawn in the back of the amp, then forced through the heat sinks TOWARDS, not OUT, just towards a grate in the chassis of the amp. Most of the hot air can exit the amp, but some recirculates back into the heat sink fan. Remember the amp is designed to be inside a rack, but the side of the chassis sits around half an inch from the wall of the rack, which is of course resistance to the hot air attempting to exit the amp, so more hot air stays within the chassis of the amp. Then you have the issue of the hot air staying in the rack. After that amp is running, a majority of the air inside that rack has already been blown into the heat sink at some time, go ahead and feel the temperature at the bottom of the rack, or even touch the bottom of the rack case. Unless something is forcing fresh air into that rack case or removing the hot air, that amp isn't going to do all that well.
This isn't taking into account the abso-****ing-lutely STELLAR "customer service" I recieved from the company after the Bass 750 blew all the 10's in my Goliath...
It's my fault I stayed with $WR- I just figured I had managed to get a lemon. I want to pick up either a Mesa Big Block or the new Eden.