I don't have a lot of time to write a full in-depth review, and I only have about 2 hours on the amp so I haven't gotten a full sense of it yet.  I will change the pro's and con's if this change drastically, but I doubt they will.   ***** I'm using Telefunken ECC88's *****   ***** $680 is the price I paid for parts + case + accessories only, not including the labor I did on it *****   Basically, this is an incredible amp.  It has detail that is unmatched in my experience, with incredibly lush treble.  A very smooth midrange presentation...

Mods can you delete this?  I'd like to save Thunderpants for Smeggy personally.  He deserves it.

Still in the works.

Got these on Amazon for $285.00 while there was a deal going on.    These IEM's are great.  They have a healthy amount of bass but its still more or less detailed.  The mids are very nice to listen to, and the highs are very separated and detailed.     The lower end sounds a lot like my HD650's.  The mids are hard to compare to anything, and the highs are almost as detailed as my K701's but have the sweetness of my HD650's.  Its a nice compilation all together and I highly recommend them to someone hoping to spend under $300 on an IEM.

Note: Price of $350 is in PARTS only.  You've still got to build the thing.   I don't really have time right now to write a full review, but there is a great review done by Skylab here:   http://www.head-fi.org/forum/thread/286709/review-cavalli-audio-bijou-diy-tube-headphone-amp

Well, my AD700's just came in the mail today.  I've gotten them merely minutes ago and I'd like to post up some initial impressions.    First the bad:   - I'm used to wearing closed headphones, not open air headphones, so fitment was a huge issue for me, and its going to take a while to get used to.  The headphones are meant to float on your head, not attach to it, so this was very different than what I was used to.  I don't like how they sit on an angle on your head, and how easily they can move around.  I think I might try the rubberband...