I too have similar needs as Thad (including the priority for a comfortable chair). Though I've followed this thread all along, I wasn't comfortable writing due to my lack of knowledge about high end DACs. Please feel free to ignore my incoherent blabber of a post and carry on the discussion.
Since the topic of portable / transportable / desktop / studio monitors has been brought up, I thought I will finally write something. I think I know where to go, but too many paths to take, which is too much for a simpleton like me to think about. May be instead of just thinking, if I write this down here, I might get some clarity.
I am mostly into portable audio (IEMs) than desktop (headphones) or speakers. Due to certain conditions at home, I am unable to use IEMs for the past 4-5 months. I wanted a speaker rig, but nothing complicated or too costly. I am thinking seriously about Adam Audio A7X as of now.
Here's my current thought process:
1) Get
Anedio D2 as DAC and Headphone Amp. The advantage is that people on head-fi who have similar preferences to mine have tried / used this DAC and have good things to say about it. So at the very least, I am sure it won't stray too far from my signature preferences. It has a decent to good headphone amp section which can be used with IEMs and headphones alike. I could possibly use XLR out to feed Adam Audio A7X as well. The disadvantage is that it is a family run small company and they are unable to keep up with orders. So, the availability and cost of importing is an issue.
2) I thought of
NAD M51 as an alternative since it has good reviews, but probably can be bought locally. I was quoted 1.26L for it, which is a tad above my budget. The advantage over D2 is that this has more inputs and has a built-in pre-amp. From what I've read, using M51 as DAC + Pre-amp seems like the best way to go. The drawback is I'd need a separate headphone amp. I already have Burson HA-160, but it goes better with headphones than IEMs. I am still thinking about this...
3) Also considered
Antelope Zodiac. But, the headphone out has a output impedance of 120 ohm, which makes it a terrible partner for IEMs which have weird impedance graphs. The Gold version has an option to switch between 0 ohm and 120 ohm OI and it ticks a few more boxes right, but I'm afraid it's beyond my budget.
Side Note to Thad:
Stax has an Indian distributor, actually their Dubai based distributor with an office in Mumbai. I was thinking of picking their "IEM" combo, SRS-005 MK2 rig (SR-003 MK2 + SRM-252S). I was thinking that at a fraction of the cost of the 'dream' SR-009 + BHSE / Cavalli LL rig, this may offer an introduction to electrostatic sound and Stax tuning. It is also 'open' and not isolating, which fits my current needs. The portable SR-002 rig should cost less, but that portable amp seems to have issues and likely holding back the ear speakers. So, you
can buy a Stax without breaking the bank, just need to live with poor build quality and terrible discomfort fitting that thing in the ear
On Transport:
After thinking about this, I also thought about the transport feeding it, which is currently my PC (STX via Coax, USB and Optical from Motherboard). I can't say I am immensely satisfied with it. This is where it gets too confusing for me.
I can take the Mac Mini (Amarra / Pure Play) route as Mac OS X natively supports USB Audio 2.0, the device consumes less power and occupies less space. But, the trouble is some portable players (like Cowon) are allergic to Mac OS X's habit of writing extra files, which bricks them. I would probably still need to use a PC for connecting portable players just to be safe.
If I kept the PC, I could side-grade / upgrade the sound card to something like
ESI Juli@ XTe / EMU / Lynx cards. I also thought of trying out
SoTM USB PCI-E Card. Another alternative to SoTM would be using something like a
Stello U3 with
i-Fi iUSBPower. Reading up a bit on them to understand.
Yet another option for transport would be shunning the PC and going for dedicated Network players, whose list is very long (some of them covered
here). I have not researched enough about the devices.
Finally...
After thoroughly confusing myself reading about a plethora of options over the past few days, I have come around to the view that an all in one device like
Resonessence Invicta may not be a bad idea at all, even if it is costly.
Hope I have not derailed anybody's interest in this thread further