Sounds Good said:
i was thinking about it today... how exactly does (for example Onkyo) selectable Zones work? if i want to watch a dvd on say my bed room tv.. would i have to run a set of componet cables 150' to my reciever?
It depends on which Onkyo you have (or will buy), but nearly all receivers with multiple zones have two options for powering the second zone:
1. Use the internal amps of the receiver. If it's a 7.1 receiver, you can send a stereo signal to zone 2 and retain 5.1 in the main zone. If it's not 7.1 you can send stereo to zone 2 and have stereo in the main zone. Using the internal amps, you just need to get speaker wire to the zone 2 location.
2. Zone 2 pre-outs. You can connect an external amplifier to drive zone2. You would have to run audio cables to zone2 and connect to the external amp. You then connect the speakers to the external amp.
Receivers that offer video for zone2 usually only support composite or s-video for zone2 and you would have to run a long cable to the display device in zone2.
Sounds Good said:
and anouther thing i have been thinking about.. is i 97% of the time watch movies so would i save any money buy just some kind of dolby/DTS decoder and say.. 7 ch amp( i know these are pricey) but is it possible? or would it be better to just have everything in one box ie a reciever
An external decoder does nothing but decode. You still need a pre-amp for source selection and volume control. A receiver contains the decoders, pre-amp, power amps, and radio tuner all in one box. The options are:
1. Pre-amp (will contain decoders) + power amp
2. Receiver
3. Receiver + external amp(s).
A single receiver is the easiest route.