Someone on Craigslist has a Marantz SR5005 for around $500. It still has about 18 months left on the factory warranty, which is really nice.
I'm contemplating buying this to replace my Onkyo TX-SR606. The amps in the Marantz look way more impressive than my Onkyo but I question if I'll notice the difference. Front speakers are Polk RTi-10s, currently bi-amped, if it matters.Center is a Polk CSi-A5, rears are older Polk RT/FX dipole/bipole. Sub is a BIC VK-12.
Is the Marantz a worthwhile upgrade?
BTW, I can get a brand new 5006 for about $100 more (eBay), but the front display is basically unreadable and there are only front channel pre-outs.
Marantz AVR & monoblocks + MartinLogan Motion 3.1 setup