i have a pair of hd280 pro's  but im  looking at an upgrade.
ive borrowed a friends grado sr80's  and after breaking them in (he had used them rarely and didnt know how great the headphones are)  and ive also listened to the hd555 (with the foam blockers removed)  and i really like the sound of the grado's   but im wondering if i should go grado or senn   if i went senn  i would get the 650's  
 
im just wondering if any one had any advice on going one way or the other   (grado sr80 or hd650)
 
 
i mostly listen to indy, rock, a wee bit of metal, and a tad of classical and jazz
 
my current set up is
foobar200>wasapi>onboard rca spdif>old sony reciever> hd280pro
 
thank you in advance

If you like the Grado sound, why not go that way?  I can't think of anything offhand that out-Grados Grados.
 
I hope that statement makes more sense that it looks like in my browser.
 
Any budget constraints?

well.  i was wondering which one had a better sound.  i havent listened to the hd650's and didnt know if they sounded alot better,
also  im able to buy the grado's now vs i would have to save up for the hd650's
another problem is that the grado's are so damn uncomfortable.  i love the pads on the hd555's and i assume the hd650's would have the same if not better pads.
im just wondering if theres a huge leap between the sr80's and the hd650's

Better is totally subjective.  I've only listened to each of those two headphones for a few hours, but my take was that they are pretty different audio flavors.  For me, there is a "leap" between the two, but it's mostly about how they present the sound and my personal experience with SR80's being fatiguing to listen to.  Not everyone has the same reaction to the Grados though, and there are probably a lot of folks who prefer the Grados over the Senns.  Especially for rock.
 
If the main problem is comfort, might want to look around to see if Grado owners have any advice on things like pads and stretching out the headband or something.  Really, if you like their sound, more power to you.  You've already had a little experience with them, so you're going into the process with a more well-informed opinion than many. 

i mean ive mostly listened to the grado's when i was falling asleep or when my mind was completely unfocused  (hes letting me borrow them for a week to be sure i want to buy them)  so i dont know about the fatigue feeling.     

Well, you have them for some time for auditioning, so that's good.  As far as fatiguing, I would imagine that whether you were listening to them critically or not, you'd notice if you found the sound signature uncomfortable.  Maybe keep an eye out if there's a local meet happening near you or something if you still feel like you want to listen to the Senns.  Believe what you hear, not what you read...at least with headphones.

Hi, First off the SR-225(i) is more a direct competitor to the HD650. Both in terms of price and quality. They're both very different in terms of their sound sig. The Senn is much more laid back.

Another thing you'll need to think about is that the Senn needs a good amp to sound it's best. Think upgrade. The Grado can be driven easier. I would still think about something like the Nuforce Icon Mobile for the Grado if you're on a budget. The HD650 really needs a desk top amp.

Sorry, I didn't see you had that reciever. I don't know how well it would drive the Senn. You would still need a DAC to get the best out of both.

Probably, but you need to start experimenting and actually describing sound in detail, breaking into its component parts - highs, mids and lows, soundstage, detail etc... That is the only way can really explain why the HD650 is better/different than say, Grados. So yea, buy more headphones, listen more.