I got an H/K 525 shipped directly from H/K for $500.00. It is a refurb, but comes with the full 2 year warranty.t I have been nothing but happy with it. While it does no have DPL2x or the YPAO that the Yamaha does it does have Logic 7 and DPL2 plus great bass management, great amps with dual power supplies plus EZSet which will auto-level your speakers.

H/K rates their amps very accurately, and never above actual power, always below. Someone stated the Yamaha, rated at 110 is more like 70, actually, it was measured at below 35 per channel, all channels driven.

Remember, those selling the Yamahas for so cheap are NOT authorized, which means no warranty. Many will offer a warranty for extra $. Read the fine print. The warranties say they start after the manufacturers warranty has expired. Well, if there is no manufacturer warranty, it does not expire, so you may never get that warranty you paid extra for.