I am in the market for some new PA speakers. I am willing to spend about $500 max. per speaker. How does Yorkville compare to JBL, Bagend, or the higher end Peavey stuff. BTW, I am looking at picking up a pair of 12" mains and a pair of 18 subs. Portability is an issue, but sound is the most important. Will run drums, bass, vocals, guitar, and keys through it. Thanks.