Capacitors are energy reservoirs that store the necessary power your amplifier will need to punch those big bass notes while limiting clipping. They store power during intervals when it is not required, which is most of the time, and release it when a short term transient demand exceeds what is available from the amplifier's power supply.
The capacitance is a secondary concern. Look at power, distortion and current capability (impedance). What are you thinking? Powering the M80s and VP150 from the Stratos and all else from the Denon? The mono extreme should be able to pump 450WRMS into the M80. Check with Odyssey. A class A/AB design means low distortion, relatively simple electronics but only about 70% efficient at best. It should sound very nice!
