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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 115

post #1711 of 2203

FYI, prospective buyers.. the ADA4627 doesn't cost "extra" from Nick.  I don't know if that will change in time (I highly doubt it), but Nick said it costs him the same price as it costs him to source the 8610 (the standard opamp that the UHA comes with).  I can't recommend this opamp enough for the UHA.  I know opamp rolling doesn't necessarily afford the drastic changes rolling tubes (or other components) might.. but I can say the 4627 offers a real, identifiable change (and IMO, an improvement) over the 209.

post #1712 of 2203
Quote:
Originally Posted by FlySweep View Post

FYI, prospective buyers.. the ADA4627 doesn't cost "extra" from Nick.  I don't know if that will change in time (I highly doubt it), but Nick said it costs him the same price as it costs him to source the 8610 (the standard opamp that the UHA comes with).  I can't recommend this opamp enough for the UHA.  I know opamp rolling doesn't necessarily afford the drastic changes rolling tubes (or other components) might.. but I can say the 4627 offers a real, identifiable change (and IMO, an improvement) over the 209.

Sorry if this has been asked, but do you know if there's any difference between the 4267 and 8610?
post #1713 of 2203

Hell!  I can only wish the last few posts had been done 10 days ago, before I ordered mine with 209s.  I'll see how it goes before ordering some 627s.

Kevin

post #1714 of 2203

Originally Posted by gnarlsagan View Post


Sorry if this has been asked, but do you know if there's any difference between the 4267 and 8610?

 

I haven't heard the 8610 in the UHA, gnarls.. but I've heard it in a few other (very transparent) portables.. the 8610 has excellent balance.. going completely off memory (and approximation), the 4627 has better dynamics and resolving ability.  The overarching feel I got from the 8610 was "smoothness" .. perhaps to the detriment of some (very minor) resolution.


Originally Posted by UELong View Post

Hell!  I can only wish the last few posts had been done 10 days ago, before I ordered mine with 209s.  I'll see how it goes before ordering some 627s.

Kevin

 

We're talking about the ADA4627.. not to be confused with the OPA627 (which is a different opamp).


Edited by FlySweep - 7/28/13 at 11:02pm
post #1715 of 2203
Quote:
Originally Posted by UELong View Post

Hell!  I can only wish the last few posts had been done 10 days ago, before I ordered mine with 209s.  I'll see how it goes before ordering some 627s.
Kevin

I think it's only like $15 to get a new op amp straight from Nick, pre-installed in a socket and ready to go. I'm considering ordering one of his amps along with a slew of op amps to try out and making a thread about my findings.

http://www.leckertonaudio.com/products/
Edited by Bazirker - 7/28/13 at 12:28pm
post #1716 of 2203
Quote:
Originally Posted by Bazirker View Post

I think it's only like $15 to get a new op amp straight from Nick, pre-installed in a socket and ready to go. I'm considering ordering one of his amps along with a slew of op amps to try out and making a thread about my findings.

http://www.leckertonaudio.com/products/
Yeah except you need two of each. Leckerton charges a lot for shipping, too. Last time I checked it was like $12 to ship a pair. A bit much. I get them from mouser and solder them on adapters. A bit less when you're talking trying 4-5 different pairs, etc.
post #1717 of 2203

Well, I await that thread when you start it.  Thanks for the correction on the op amp.   What I heard about the opa627 didn't thrill me. But the 4627 sounds interesting.  How does the treble of the 209 compare with the 4627?

post #1718 of 2203
Quote:
Originally Posted by UELong View Post

Well, I await that thread when you start it.  Thanks for the correction on the op amp.   What I heard about the opa627 didn't thrill me. But the 4627 sounds interesting.  How does the treble of the 209 compare with the 4627?

The 209's pales in comparison to the 4627's. piano's sound quite off with the 209, but with the 4627 they sound natural. 209 treble is very harsh?
post #1719 of 2203
Quote:
Originally Posted by thegrobe View Post

Yeah except you need two of each. Leckerton charges a lot for shipping, too. Last time I checked it was like $12 to ship a pair. A bit much. I get them from mouser and solder them on adapters. A bit less when you're talking trying 4-5 different pairs, etc.

Nick told me in an email that shipping was 6$ not 12$
post #1720 of 2203

Being a blind guy, I'll have to pay Nick for mounting them on their sockets and therefore his shipping cost.

post #1721 of 2203
Quote:
Originally Posted by UELong View Post

Being a blind guy, I'll have to pay Nick for mounting them on their sockets and therefore his shipping cost.

You don't need to do any soldering! The op amps come already soldered to an adapter. All you have to do is pop the pins into the circuit board. biggrin.gif
post #1722 of 2203

.

post #1723 of 2203
Quote:
Originally Posted by UELong View Post

Well, I await that thread when you start it.  Thanks for the correction on the op amp.   What I heard about the opa627 didn't thrill me. But the 4627 sounds interesting.  How does the treble of the 209 compare with the 4627?


You don't have to solder. You can interchange the OP Amps as long as they have the correct adapter.

post #1724 of 2203

I'm sure I can do the change.  I was just thinking that a non-leckerton source might not mount them on those pinned socket mountings that make it convenient.  But let's see how it sounds before trying to go inside the case. 

I also note the Nick doesn't seem to offer the 4627 as a choice, yet.

Thanks for your posts.

Kevin  Windsor On

post #1725 of 2203
Quote:
Originally Posted by UELong View Post

I'm sure I can do the change.  I was just thinking that a non-leckerton source might not mount them on those pinned socket mountings that make it convenient.  But let's see how it sounds before trying to go inside the case. 
I also note the Nick doesn't seem to offer the 4627 as a choice, yet.
Thanks for your posts.
Kevin  Windsor On

Just send him an email telling him you want to order a pair of ada4627's, he currently has them in stock.
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Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added July 20th 2012)