This thread is from 2003. You can ask Bob Lee (QSC) by sending him a personal message, though he will likely see your post soon. I know some dealers can order C stock from QSC, and ebay often has some C stock QSC listings. Welcome to Talkbass!
To contact Bob Lee, who is a really helpful and knowledgeable guy, click on the blue Bob Lee (QSC) link post #21 above in this thread. Then click "start a conversation."