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JUST AUDIO - uHA-120 headphone amp
Apr 7, 2011 at 1:03 AM Post #16 of 210
Haven't looked for my wallet yet, but I seriously need to stop reading these forums.  Even my imaginary wishlist is getting scared...
 
 
Apr 7, 2011 at 1:16 AM Post #17 of 210


Quote:
munkyballz said:
Haven't looked for my wallet yet, but I seriously need to stop reading these forums.  Even my imaginary wishlist is getting scared...
 
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Did you read about their plan to run TWO AHA-120s (the pure Class A amp that sells for over 600 USD) in balanced mode ? Run those numbers into your wishlist and tell us how scary the uHA-120 looks :)
 
 
Apr 8, 2011 at 3:05 AM Post #18 of 210
^ Yeah I saw that blurb, but didn't read it too carefully because... well, I didn't want to remember it in the case I happen to win a mini lotto or something, as funds would definitely should be allocated elsewhere... haha.
wink.gif

 
Apr 9, 2011 at 8:23 PM Post #19 of 210
How is the sound signature of uHA-120? I havn't got a clear idea about your view, if its forward or midcentric? is there any part of the spectrum that is less emphasized? Thanks in advance
 
Apr 9, 2011 at 9:11 PM Post #20 of 210
I think the uHA-120 is reasonably neutral really. No real coloration or signature. It has  really, really nice treble, with a true tactile and layered quality to it. The top end has wonderful sparkle. 'Crystalline' is a term I like to use to describe it. The mids are simply 'right'. They're neither too forward, nor too recessed. The bass is beautifully full, extended, and taut. I've been using the Lisa III w/power unit at work with my Ultrasones, and the uHA-120 definitely has deeper but more detailed bass, even when the Lisa's bass knob is turned up somewhat. 
 
So, unfortunately, I don't really have a single descriptor for its sound signature. Detailed and accurate. Open and spacious. Full and robust as well. Nothing is less emphasized... it's all there in spades. Every box ticked.
 
That's all I can offer!!   ;^)
 
Apr 10, 2011 at 5:51 AM Post #21 of 210

Thanks for you offer :wink: I'm actually going to use it with Pro 900 too but perhaps with other cans too, such as Hifiman's upcoming more easily driven HE-500. Glad to hear that pro 900 sounds good with it.
 
Ed
Quote:
cn11 said:
I think the uHA-120 is reasonably neutral really. No real coloration or signature. It has  really, really nice treble, with a true tactile and layered quality to it. The top end has wonderful sparkle. 'Crystalline' is a term I like to use to describe it. The mids are simply 'right'. They're neither too forward, nor too recessed. The bass is beautifully full, extended, and taut. I've been using the Lisa III w/power unit at work with my Ultrasones, and the uHA-120 definitely has deeper but more detailed bass, even when the Lisa's bass knob is turned up somewhat. 
 
So, unfortunately, I don't really have a single descriptor for its sound signature. Detailed and accurate. Open and spacious. Full and robust as well. Nothing is less emphasized... it's all there in spades. Every box ticked.
 
That's all I can offer!!   ;^)
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Apr 18, 2011 at 2:23 PM Post #24 of 210


Quote:
daveathall said:
I ordered this today, really looking forward to tomorrow.
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I don't see how you can't be pleased. It's a wonderful sounding amp. Please post some impressions once you get it. 
 
Here's a pic for the interim.....
 

 
Apr 18, 2011 at 3:24 PM Post #25 of 210
This seems as though it'd be perfect, but it's too big. I'm not really sure about the point of an amp that size. Technically transportable yet not truly portable in the sense of being too large to pocket and go with, so why not just make it larger?
 
I wrote Justin about an iem amp and he was closemouthed about any work on an iem.
 
Here's what he wrote:
I don't make a habit of talking about specifics on a possible future product or products or enhancements in the public domain. What I can say though, is that more attention is being given to better accommodating the IEM market in the future.  
 
I like that it outclassed the arrow, though. Something smaller that outcompeted the arrow would be great, although I have a feeling it'll be a year until we see something like that if the e11 doesn't at least equal the arrow when it comes out (guessing at early-summer for that).
 
Apr 18, 2011 at 5:27 PM Post #26 of 210

 
Quote:
nuwidol said:
I listened to the AHA-120 (2 of them running parallel in balanced actually) driving the HE-6. I'm not joking here. One amp per channel can give the HE-6 a decent sounding presentation. I'd been listening to the HE-6 through the Lyr when Justin approached me & asked if I'd like to try his portable amps running them. I was a bit skeptical at first but after he'd set everything up & handed them back to me I sat there in disbelief. I actually preferred the HE-6 out of the 2 portables. They toned down that hard aggressive sound of the HE-6 & turned them into something a lot more forgiving.

Well done to Justin for coming up with 2 great products. He's actually in the process of designing an amp for IEMs too (The UHA was made with full size cans in mind).
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Aaaah, Head-Fi : I just spent a few posts defending Leckerton's $10 price rise, now I'm going to question what you have said on the basis of bang-for-buck :)
 
I agree that its impressive, but the cost of 2 AHA-120s would put you within reach of some very capable fullsize amps. Sure, you will be tied to a wall socket, but its difficult to argue for this as a solution for the HiFiMan orthos. Great proof-of-concept stuff, and I'm sure someone here will buy that configuration simply because they can, but its up there with shoehorning a 454 Chev V8 into a VW Bug - clever but expensive.
 
 
Apr 18, 2011 at 5:30 PM Post #27 of 210


Quote:
kunlun said:
This seems as though it'd be perfect, but it's too big. I'm not really sure about the point of an amp that size. Technically transportable yet not truly portable in the sense of being too large to pocket and go with, so why not just make it larger?
 
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Horses for courses, but you've just ruled a line through the RSA amps, most iBasso product and the Stepdance. For genuinely portable use, I agree that the slimline amps make more sense, but my T3 just didnt have the grunt of my D4 and doesnt begin to approach my P4 - that said, I accept 'transportable' over portable and my daily commute is a ten minute walk to work :)
 
 
Apr 18, 2011 at 5:41 PM Post #28 of 210
It does seem very similarly sized to how I remember the RSA Mustang when I had it (maybe just a hair bigger). And that thing was considered highly portable a couple years ago. I guess all the slim amps now are spoiling us all on the uber-portable front. 
 
Apr 18, 2011 at 6:27 PM Post #29 of 210


Quote:
estreeter said:
Horses for courses, but you've just ruled a line through the RSA amps, most iBasso product and the Stepdance. For genuinely portable use, I agree that the slimline amps make more sense, but my T3 just didnt have the grunt of my D4 and doesnt begin to approach my P4 - that said, I accept 'transportable' over portable and my daily commute is a ten minute walk to work :)
 
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Right, I actually did rule out the stepdance for that reason, plus the battery issue. A 10 min walk is one thing, subways, trains, etc. are another. But yes, the mini-brick amps are transportable, just not really so comfortable to carry around all the time.

 
Quote:
cn11 said:
It does seem very similarly sized to how I remember the RSA Mustang when I had it (maybe just a hair bigger). And that thing was considered highly portable a couple years ago. I guess all the slim amps now are spoiling us all on the uber-portable front. 
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It's a good thing to be spoiled in this case, hopefully we'll see amps with how you describe the uha120's quality in the arrow's size sooner rather than later.
 
 
 
Apr 18, 2011 at 7:53 PM Post #30 of 210


Quote:
kunlun said:
It's a good thing to be spoiled in this case, hopefully we'll see amps with how you describe the uha120's quality in the arrow's size sooner rather than later.
 
 
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And that would bring the M-Stage down to something the size of my P4 - excellent. OK, so maybe I just bent the laws of physics, but dreams are free, right guys ? Er, guys ?  <crickets chirping>
 
 
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