I'm in the same boat, about to pull the trigger on the yulong d100 but wanted to get some feedback on what the other options were. 

Would a compass be powerful enough to drive either the HD600 or HD650.

Is there much of a difference between the HD650s and HD600

I'm also thinking of getting the compass, is that enough to power the HD650s?

Currently I have the Grado SR225 and the Shure SE530. I was wondering what the full sized anti grado headphone would be? When I say, anti grado, I mean a sound signature that would be opposite of the grado's sound. Something bassy, laid back, and good soundstaging. Everything that the grado...

So if the midrange is so lacking on the Pro 750s, wouldn't you therefore want a very tubey sound to bring the mids out? Like a Darkvoice 332 or something? I imagine the accuracy and "shrill" nature of SS amps would just exacerbate the Pro750s sound signature.

Wow. HD-650s unamped.... Somebody give this boy an amp!

From what I understand (since I never had the chance to hear a Woo amp) Woo Audio makes some very fine tube amps. But be aware that strictly speaking generally, tubes are recommended for high ohm phones like the HD650s while solid state amps like the Gilmore Lite or Little Dot MKV are...

Oh hell, I might as well say it since someone else will eventually. But you should check out the ever popular Zero DAC/amp (there is a thread in the amp section that is over 200+ pages on it). As for headphones, the Grado SR225s if you really want a rocking can, or the Denon D2000s if you...

Quote: Originally Posted by Killahertz Just to check in with my I+ having arrived yesterday - superb service from David at Little Dot. Well, let's just say that it works with Senn HD595. No, hold on 'works' falls well short, the result is amazing. First impressions are of space...

X2 on the ultrasones. They are exactly what you're looking for. They have the PRAT and speed of the Grados, while also having slamming bass. Check out the Pro750s or Pro950s if you have the extra dough.

OMG! I'm going nuts, this sounds like such an awesome amp. Or perhaps I just want this little amp to because of its little price... Either way, I'm jealous.

I too would like to know this. Seems like a curious idea.

Quote: Originally Posted by Nocturnal310 And i thot only Blondes are Dumb Zing!

I think a lot of us are desperately waiting for further impressions. This little sucker has the chance to really be something special at it's price point.