The H/K's do indeed. You can use Global, where they are all the same, or independant, where you can set it per use, including Dolby Digital, DTS, Stereo, etc.

Their bass management is very good. For DVD-A and SACD, you can also set the cross over per channel, which is VERY flexible and handy option for it's price point. Yes, ti must convert the analog signal to digital for this, and many have complained that woudl lead to a loss in quality. I have noticed no loss in quality at all.

I am not sure on the 325, though. If memory serves, the 325 has what the 525 does BUT the bass management for DVD-A and SACD.