Hello! 1. XLR suport connection with pasive speakers through banana plug? (XLR--banana plug existe on ebay) or a connection is possible only with active speakers? Via OPT on Zidoo i connect Sound Blaster X7 (with internal amplifier) and 2 passive speakers. The sound is fantastic! But i want connect at XLR(Zidoo) 2 more speakers. 2. It has Zidoo X20PRO internal amplifier?