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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 118

post #1756 of 2192
Quote:
Originally Posted by thegunner100 View Post

If I wanted to change my opamps, all I would need to do is purchase the "SOIC-to-DIP Adapter w/Pre-Installed Op-Amp", take apart the amp, pull out the previous opamp, and then put the new one in? I'm interesting in grabbing a 4627 to go with my UERM and hd600.

Yup. It's as easy as that!

post #1757 of 2192
Well then, 4627 it is!
post #1758 of 2192
Thread Starter 
Quote:
Originally Posted by vwinter View Post

Couldn't you just use one of those clear-ish plastic boxes with a ton of compartments that people use to store beads or buttons or jewelry?

Unless they need to be stored very specifically (I have no idea), you can get one of those boxes with like 10-20 compartments for under 5 bucks.


I need something with a foamy base that i can pin the op amp to so it doesn't rattle around. I also need something that has an inside lining that's not conductive. I don't know, maybe one of those storage bins with non conductive foam cut to size for the compartments?

post #1759 of 2192
Quote:
Originally Posted by kimvictor View Post

Yup. It's as easy as that!

 

Do they have to put in a specific orientation or does it not matter?

post #1760 of 2192

Why does it cost $10.45 to ship a tiny little OPAMP within the states?! Kinda ridiculous... 

post #1761 of 2192
Quote:
Originally Posted by thegunner100 View Post

Why does it cost $10.45 to ship a tiny little OPAMP within the states?! Kinda ridiculous... 

Profit.
post #1762 of 2192
Q: where are you guys buying the ADA4627? I saw reference to Mouser. Or are you guys getting it from Leckerton directly?
post #1763 of 2192
Quote:
Originally Posted by ocswing View Post

Do they have to put in a specific orientation or does it not matter?
they do. I think they do.It should be fairly easy to tell.
post #1764 of 2192
Quote:
Originally Posted by AnakChan View Post

Q: where are you guys buying the ADA4627? I saw reference to Mouser. Or are you guys getting it from Leckerton directly?


When I  bought Op Amps I got from both Mouser and Leckerton. So I'm assuming you can go to either source. But I went with Mouser for Op Amp 627AP because it was cheaper.

post #1765 of 2192
The 4267 is available from Leckerton. Got mine there.
post #1766 of 2192
It's easier to get direct from leckerton because the opamp is already soldered to the adapter so all you have to do is plug it into the circuit board.
post #1767 of 2192
Thread Starter 

I just got an email from Leckerton this afternoon concerning the ADA4627-1A and it can be ordered directly from his site. The op amp costs 16 USD per op amp and comes already soldered onto the SOIC board. I was tempted but shipping to Canada is 32 USD which means I'd be paying 64 USD for a couple of tiny op amps. Pretty pricey for a couple of little op amps. Anyone out there handy with a soldering iron or know of a better place to buy this op amp already soldered to a SOIC board, lol? I've given flea bay a quick look and there are cheaper alternatives but they all have no SOIC board and shipping is ranging anywhere from 9 to 20 bones USD.

 

By the way, I also mentioned to Nick he should look into getting a head-fi account and pop in on the thread. He answered he's been meaning to and eventually will get around to it but he has been very busy the last few months with new designs. Not to sure if he meant designs at his day job or concerning his home Leckerton audio business. If it's his home business I wonder what he has up his sleeve?


Edited by DigitalFreak - 7/31/13 at 8:04pm
post #1768 of 2192

Hmmm.... Color me interested if he's working on something new. Pretty impressed by the guy and his products. 

post #1769 of 2192
I'm also very impressed with his work and approach.
post #1770 of 2192

For ordering the ADA4627, what's the Voltage Input Offset - 120µV or 70µV? What difference would that make?

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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)