I've just been doing a little more reading (a dangerous thing).

What will happen if I connect the 586 to a 5000 using a digital cable and play a CD?

Would it play at a sensible volume so I could at least test to see if the speakers work?

Relaxing room 1: Vizio P65, Oppo 203, Emotiva XMC-1, Beolab 5.3 speakers.
And a big headache getting it all to play together.

Relaxing room 2: Beocenter 2, Beolab 2.1 speakers.

Music room: Apogee recording with Nuemann, Dynaudio and Meridian speakers.
And a big headache getting it all to play together.