Not all Qs are created equal. JR has posted about this extensively. Also, the Xilica DLP4080A is lame compared to XTA and BSS. I own one too. Side by side with my XTA DP448, there's no comparison. Don't skimp, wait until you can get your hands on the XTA. It's far superior sonically and has superior limiters. The BSS is a good second choice though if you can't get the XTA.