In case you weren't serious.
Ended up doing a split mod + Mogami re-cable on my Q701. Didn't try it single ended before I did the split so I cannot say if there is any real advantage.
What I can say is that it seems like the mogami cable really mellowed everything out and made them much more listenable. It took a lot of the harsh off the highs and can listen at higher volumes without cringing on some jazz tracks when the horns kick in. On the negative, It seems like I've lost a little bass impact, not all of it, but definitely noticeable.
When I get a chance, I throw a few pictures in the DIY cable thread if anyone is interested in seeing how it came out.
If you are planning to get the Lyr to power your HD700 I suggest try auditioning the WA3, might be a great pairing as it pairs phenomenally great with HD650 and HD800.
I must have been thinking of someone else. Sounds like you have your priorities sorted. I'd say Lyr before Bifrost, unless you've already got a nice amp and a not so great DAC. I know one can spend a lot more on a DAC, but I was still hesitant to get the Bifrost. I mean, my little Sabre U2 is pretty solid. But if you can afford it, it's a great DAC. If you don't need USB you can save a bit, but I tricked mine out. Also, the Lyr+Bifrost stack looks damn nice. Even my wife oohed and aahed a little
Here's some new measurements of the Q701:
Maybe someone can email the owner and ask him to measure them with the mod!
BTW has anyone tried the non modded Q701 with K712 pads (not the flatter Annie pads)?
I want to buy some but $70 is too much. I hate the Annie pads but like the K712 pads.
I tried the K712 pads on the modded Q701 but it was warmth overdose. Some might like it but it felt too congested sounding.
I bet it could be fixed with small modifications to the outer foam and inner grill.
Also..I tried taping the K601 pads once on my K400 and it really does help improve the bass, but it was too ridiculous looking to me to keep it installed.
Maybe if I could get it to look nicer it might help. I don't believe I tried this on the Q701 pads.
My guess is that a Q701 STOCK with K712 pads would sound extremely close to the K712 but a little darker.
The modded Q701 is close in sound to the K712, but the K712 is a tiny bit fuller sounding in the low mids.
modded Q701 sounds smoother with some material and on other music it's the K712. Harsh Jpop actually sounded easier on the ears on my modded Q701(!)
I borrowed the K712 for a week. I'd buy it but it's asking price is too much since i'm not exactly rich.
Despite what some say, the K712 sounds like it has more upper mids than the Q701.
Not to beat the dead horse too much, but aren't they the same part number, so there's no way of being sure of which you'll get? Maybe I'm confusing them with the pads for different models.
Most likely they're all K712 pads now with the taller sides.
If someone ordered pads for their "Annie" they'd probably get something that sounds a little different (better).
Also, the Q701 bass mod works on the K400.
There are several versions of the K400 and mine had a foam "plug" on the back that I removed. My 2nd K400 is totally open but is still bass light. Some can't be modded.
This foam piece can get stuck inside it's hole if you're not careful.
I noticed in that How it's made video that there are other covered holes on the back of the Q701/K702driver.
If I had a K702 to destroy i'd like to experiment, but i'd possibly ruin it. The Q701 mod gives me enough bass as it is.