Now that we are able to order them (I have mine), does anyone have any experience with the old ones and have a comparison?

I will be strong.  RS1, iBasso D4, Ultrasone Pro 750.  Final!

And I bit.  

Just wanted everyone who was so helpful with this process that I absolutely love the RS1s!  I'm not going to attempt to review the sound, because I'll do a terrible job, and that's been done plenty times before with these cans.  But they're incredible.  As far as pairing with the RA-1 and V-DAC...

Quote: VERY interesting...I'll look into that.  As of right now I'm looking at a bunch of closed cans (Ultrasones, Shure 840, Senn HD 25-1, Beyer...kinda, and now these suckers you just recommended, and even some IEMs, although I don't think they're right for me comfort wise).  All and...

Hmm...650s for $120 or 750s for $200.  That's tough, but I think the comfort aspect you talked about in your review might be worth the extra bucks.  The leakage could be a problem, but if it's too bad I can just sell them and get something like the Shure 840s which I know don't leak.  

Honestly a bit of everything.  Anything from classical, to rock, to folk, to rap, to techno.  I try not to discriminate.  You really prefer the 650s to the 750s?  I assume the sound leaking is similar?

I found the Pro 750s for $200 on the FS forums though, which is pretty hard to pass up.  Can any headphone provide that sound, at that price, with good isolation?  I might just take the leap for the 750s and hope people near me enjoy my music as much as I do.

Thanks guys.  I'm looking for sound quality first, but if they leak then it pretty much negates it because I'll only use them when I won't be able to use my RS1s.  Isolation isn't very important to me, because I'll be using them for the most part in quiet places, but leakage is because the last...

I'm looking for a good over ear closed headphone for use in libraries and study rooms and things like that.  Basically places where no one can hear the music but me.  I've read great things about the 750s (and some not so great things) but I think based on sound they're the cans for me.  My only...

Oh I didn't hear it anywhere, I just wasn't sure if the 9v battery made a difference with low impedance cans like the RS1s

And the D4 sounds the best only using the 5v USB rather than the USB and 9v?

I think based on price and reviews, the opamp rolled D4 it is!  Thanks alot, your gigantic portable review thread was the basis for researching all of this stuff, and it was INCREDIBLY helpful.

Yea I know...I put it in the for sale forum when I realized I was an idiot

This has probably already been answered in one way or another (or ten) but for the life of me I couldn't find it.  Which of these do you think pairs the best with Grado RS1s?

So helpful...thanks!

Bought used about a month ago, has all of the original packaging along with a Pyramid PSU and is in perfect condition.  Message me!

Mint Condition, about three weeks old.  Message me!

I'm now considering selling off the V-DAC and RA-1 and instead getting a portable amp like an iBasso or RSA Predator...I just feel like I'll probably get similar sound quality for a much lower price.

Or nothing!

Interesting...you guys think the Mapletree is worth the extra $400 vs the RA-1?  Or would upgrading something like my MF V-DAC be a more worthwhile investment?

That's what I've heard as well.  I was deciding between the RA-1 and HA-006+ and went with the RA-1 because it was $150 cheaper and I had read some really fantastic reviews about it. Do you think the HA-006++ is worth it over the HA-006+?  And is 1x gain better than the 3x option?  I've read...

Interesting...I'll have to do some research on the Mapletrees.  How do you find information on meets?  I'm in the DC area right now but I'm in Princeton, NJ during the school year and the latter part of the summer.

Bump...come on now

I just bought a Grado RS1 with a Grado RA-1 amp and I love it.  I was just curious for when I do upgrade, what that upgrade should be.  If there are other threads already talking about this, sorry (not really), I felt this was more specific and is a question I, among many others, would love a...