I am seriously considering the Casablanca II as I build my system, and have a question about it. Its so configurable and upgradeable sometimes its confusing what you need to buy. The price sheet lists the â€œbase modelâ€ with its analog and digital input cards. Several lines down there is a listing of D/Aâ€™s. Am I to assume the base model includes NO output stages and I would have to buy this separately? So if I want to build my 5 ch. system with balanced audio, I would have to buy two â€œStandard 3 channel Balanced D/A cardsâ€ as a bare minimum?