[kite7]

U100 is not really attractive for the price, it's $220. There's Audio-GD solutions that offer more functions for the same price, not to mention that the headphone amplifier output power isn't that impressive by spec on the U100.

 

[miyinan]

Wow, looks very nice. Looking forward to your impression and comparision between the A100 and D100's build-in amp, project86.

 

[BigAmish]

Just ordered the D100!  Fills a perfect solid-state amp & DAC niche in my current system.  How come every time I return to Head-Fi after a long absence I end up dropping ~$500 on a new purchase?  Great reviews by project86 & Skylab certainly don't help.  My wallet curses the both of you. 

 

[Skylab]

There isn't a lot of output power on the A100 into high impedances, according to the specs. Not a good choice for 600 ohm Beyers.

 

[project86]

 
Quote:

U100 is not really attractive for the price, it's $220. There's Audio-GD solutions that offer more functions for the same price, not to mention that the headphone amplifier output power isn't that impressive by spec on the U100.

 
I don't necessarily agree. I'll find out more when I hear the thing obviously, but you can't really judge value based on specs alone. I love the sound of the Leckerton UHA-6S for example, and it doesn't have tons of juice. My old iQube put out practically no power yet it sounded great. The USB only factor would certainly be a limitation, but is perfect for some scenarios. So I have hope for the thing but we will see. 


 
Quote:

There isn't a lot of output power on the A100 into high impedances, according to the specs. Not a good choice for 600 ohm Beyers.

That sort of depends more on the voltage swing though doesn't it? My Luxman P-1u has pretty pathetic specs into 600 ohms but still manages to perform very well. You seem to have more high empedance models than I do though and I admit I'm not totally up to speed on the subject so I could be wrong. I'll be using the A100 mostly with Edition 8, W5000, KH-K1000, and other sealed headphones which happen to be fairly low impedance.
 

 

[Skylab]

It might work OK, but an amp like that is clearly better at current delivery than voltage swing based on those numbers - so it likely won't be ideal for 600 ohm cans.  Lots of juice for your Ed 8's though!!!

 

[svyr]

It might work OK, but an amp like that is clearly better at current delivery than voltage swing based on those numbers - so it likely won't be ideal for 600 ohm cans.  Lots of juice for your Ed 8's though!!!

neither is d100 (130mv @ 300ohm vs 170mw of A100). Plugged joe007's T1 into it, didn't sound good at all or go too loud.


p.s. didn't notice before, but they also have a small amp: http://www.audiophilechina.com/cp-show.asp?C_id=172&S_id2=0&s_id=

It might work OK, but an amp like that is clearly better at current delivery than voltage swing based on those numbers - so it likely won't be ideal for 600 ohm cans.  Lots of juice for your Ed 8's though!!!

70mw @ 600 ohm isn't very much. Plus all mfg tend to quote THD+N at local min on the power vs thd+n graph. Many of the graphs I've seen, as power approaches 500-1000mw @ 32 ohm (or the higher impedance equivalent) SS amps start looking very much like tube amps THD+N-wise

 

[castlevania32]

between audinst hud mx-1 and yulong d100 which one has the best overall value as a dac ? i have hd-650+m-stage
 
PS : i mean the best ratio sound/price

 

[svyr]

Btw, the problem that I have with leaking vol at min vol pot position is probably a vol pot channel imbalance. Nothing serious or unusual really (esp for only at low vols).

 

[Zida]

Quote:

Btw, the problem that I have with leaking vol at min vol pot position is probably a vol pot channel imbalance. Nothing serious or unusual really (esp for only at low vols).

 
I just noticed I have that too, but it's extremely quiet. I had to focus to hear it with my HD650.

 

[AVU]

Love to hear a comparison between the D100 and the new Audio-GD NFB-11, which is $275 and uses the new Sabre 32 DAC chip!

 

[hookahxapyw6]

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Project86, that is a very impressive review!  I was sent a loaner of the D100 to review, which just arrived.  But there is no way I will be able to even approach the thoroughness of your review.  Nicely done!!!!

It's nice, It's very helpful.

 

[Zida]

Though I'm extremely happy with my HD650, I kind of feel like trying out a pair of HE-5 that I see posted in Canada on the FS forums. Now, being planar they're notoriously hard to drive well. Do you guys think the D100 should be up to the task? otherwise I think I may not bother with those cans.

 

[project86]

Quote:

Though I'm extremely happy with my HD650, I kind of feel like trying out a pair of HE-5 that I see posted in Canada on the FS forums. Now, being planar they're notoriously hard to drive well. Do you guys think the D100 should be up to the task? otherwise I think I may not bother with those cans.

 
 
Sorry, I'm a little behind the times when it comes to the current crop of high end ortho models. I haven't heard the HE5/HE5LE/HE6, nor the Audeze LCD1/LCD2. I'm working on having someone build me a pair based off a highly tweaked Yamaha YH-1 in a Sennheiser frame, but it might be a while before they finish and I'm not sure how relevant it would be compard to the HE5 anyway. Skylab has tried some of those models though, pehaps he could advise?

 

 

[Zida]

Yea, hopefully skylab will be available for comment on this. Have you heard your U100 yet? I'm still curious how it stacks up.