The Mac will be that softer "mac" sound (which I love in my 6 channel mac). The Mac is extremely well built and will take a beating. Furthermore, the Mac will gladly handle lower impedences than Onkyo's are known for. Many Onkyo's don't handle lower than 6 ohms with a full load of speakers. Last choice for the Mac is you can bridge most Macs for a ton of power.
Finally, the Onkyo will be work sooo much less in 6 months. The Mac can be sold for little or no loss any time.
Finally, the Onkyo will be work sooo much less in 6 months. The Mac can be sold for little or no loss any time.