Noted thanks! :)
I'm a bit late to the party but I've had my Geek Out 720 for awhile now and am still enjoying it quite a bit. During the campaign I opted for the 450 in Green but since the Green wasn't up to snuff i was offered a 720 in my choice of black or red (I went with black).
Being a Mac user, setup was a breeze and I can easily switch back and forth between the Geek oUt and my NI Kore Audio 6 Audio interface by simply opening my sound preferences. The NI Kore also has an excellent sounding DAC but it's headphone power is pretty much the same as an iPod so it doesn't drive the Q701s all that well. Side note.. music/studio gear tends to make for a very good DAC for a whole lot less money than most audiophile gear. Even a basic $100-150 Focusrite iSolo is going to be a huge improvement over an on board DAC.
Initially I had the eardrum-shattering volume jumping issues every time the device was plugged in but somehow that seems to have sorted itself out without any action on my end. But just to be on the safe side I always fire things up with the headphones off.
I've been pairing my Geek with AKG Q701s and am quite pleased wight he pairing. I know many complain that the Q701s are a light in the Bass department but with the Geek there seems to be just a touch more bass presence making for a very pleasant listening experience.
This is my first "audiophile" DAC so I'm not going to bother wasting anyones time with a lengthy review trying to compare it to other players. If it were simply a DAC I'd actually have very little, or possibly no, interest in it since currently I have no high-res music and listen mainly to CDs ripped to ALAC. It's the combination of DAC and Headphone Amp that I'm drawn to. The DACs on NI Kore Audio 6 and Apogee DUET are quite good but on their own they can't do much for power hungry headphones (but they both sound splendid with my Momentums).
That being said, as a portable DAC/Headphone Amp combo I'm quite pleased with end result. It's has a nice balanced sound with great resolution and can drive my AKGs with no problem.
What I'm really looking forward to is my Geek Pulse X. I spend a lot of time sitting at my desk on my iMac and having a desktop unit that can be properly integrated into my setup will be fantastic.
Just a heads up with UAPP (Universal Audio Player Pro) ver. 1.1.9 for Android.
There is a preliminary DSD function for DACs supporting DOP.
Requires a fast smartphone though.
Player link here: Paid Version UAPP ver 1.1.9
Trial Here: Trial UAPP ver 1.1.9
Geek Out confirming DSD128 courtesy of the album 2L - The Nordic Sounds,
Track 01. Mozart - Violin Concerto No. 4 In D Major Kv 218 - Allegro
My understanding is that people who pre-ordered the GO 450 in silver have had theirs shipped. And I just learned that a few people who won GO units from CES have received theirs as well. So there are a handful in the wild that were not backed via Kickstarter.