I have tested both Philips and Sony headphones. While I have not got a chance to test the SHP-805, I have tested the XD-100 as I was considering buying it.
I feel that in the Philips headphones I have tested in the past, the quality of music has never quite been upto the mark. i.e music is always distorted one way or the other.
I remember two things about the XD-100.
1) One is that the base was too much. I wonder why atul did not find it to be bassy enough. IMO it was very punchy. The reason I was put off from buying them.
2) The second thing is that the voice detail was very clear...much better than any set of philips cans that I'd tested. I found the XD-100 to be well suited or rather optimized to regional music but not rock music with a lot of guitar 'n other instruments which seemed recessed or reduced vs voice and bass.
All said, I would spend another 500/- and get the XD-200. Even though I've not tested it, I've read favourable reviews of the XD-200 even over the XD-300.
Here's a link. Maybe you'll find it helpful.
Damaged Gears Retro Damage: MDR-XD200 & MDR-XD400 Reviews «
Also, I'd read somewhere that the XD-200s are made in Korea vs the rest of the XD series being made in China. I'm not sure about the ones we get in India though. I don't know if this influences your purchase but it sure does mine.
Forgot to mention: The XD-100's are very large and comfortable on the ears(200's should be the same). Unlike most of the Philips cans I've tested.