Hookig up rxv1800

Just a suggestion - does the orange light mean a short circuit somewhere?

Here's the Manual
Good luck!
http://www.fixya.com/support/p168229-bose_lifestyle_sa_1_amplifier/manual-1542

The answer depends on if you have external speaker level volume controls (usually in-wall type) between the amp and the speakers.
If yes, hook the RCA cables from the 275 inputs to the Denon's Tape Output. With speaker level volume controls set to max, use the level controls on the front of the 275 to set max level desired in each room.
If no, then you must use a line level volume control between the Tape Output and the 275.

There is a volume control where you select the source of the control room signals. There is NOT a slider type fader. The same pot that controls the phones varies the control room speakers.

You could also use one of the AUX to drive your control room speakers, however they are usually used to drive the stage monitors.

set up the control room out to your speakers set up the main out to go to you comp
that way you have control over the volume of both these seperately

The infrared mentioned by the manual is most likely an extension possibility to use the remote control in each room, forget that part.
What you need to do is quite simpel, after connecting all speakers, you should indicate in the setup menu of each zone which speakers are connected and do as follows:
in main room select 5.1 setup, for the other zone select only the left and right front speakers.
Your EXTRA SP indicates the extra speakers for 7.1 setup and when set to zone B it recognises only 1 speaker.

So read carefully the manual how to connect Zone 2 speakers and connect that way, than carefully walk through the setup menu to setup the zone 2 correctly.

Hi...
Without a huge mess, I would suggest one of the multi-speaker selectors that partsexpress.com sells or a similar item.
Just put "speaker slector" in their search engine.

If youre going to 8 other rooms..you might try a couple of wireless speaker systems too. They work in stereo and ....no wires

Stereo sound requires two speakers per room. One for the right channel and one for the left channel.

the mani surround room should be connected to the front speakers A, Center, sub pre-out and surround.
for the other two rooms connect them to surround/back, go into settings and in power amp assignment assign the surround back speakers to the multi room.
once this is complete with your remote in the zone2 control mode you can play your sources in zone2 and control the volume also, if you have inwall volume controls set the zone2 volume to -10 and use the room controls.
To listen to the same source in both zones you will have to select that source in both zones

Most amps will only power two sets of speakers direcrly hooked to amp (A&B). If you want audio throughout the house, I would recommend a PA system set up with individual room volume controls