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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 127

post #1891 of 2186
Quote:
Originally Posted by zowki View Post
 

I hear a loud pop noise through my amp when there is a nearby camera taking a flash photo. It happens with my Canon EOS 450D and other cameras. I'm using the OPA209 opamp.

 

Seems like OPA209 is having some interference issues.

post #1892 of 2186
order a pair of ada4627 op amps from Nick if you do not want interference.
post #1893 of 2186
 
Originally Posted by zachchen1996 View Post

order a pair of ada4627 op amps from Nick if you do not want interference.

 

+1

 

I've stacked my Galaxy S3 & iPhone 4 (which I use as my portable DAPs) directly on top of the UHA-6S MKII & haven't heard a hint of interference...

 

..and the ADA4627 is the best sounding opamp I've heard in the UHA.  To my ears, it's noticeably better than the 209.. heck, I got the ADA4627 installed in my Neco Soundlab V4 b/c I was so happy with how it sounded in the UHA.

post #1894 of 2186

I have the standard opamp that came with the MKII and use a optical line out from the macbook pro to it. The phone is constantly charging beside it when I listen, and it has never once occurred to think about interference until I read this thread. 

 

In any case, some folks are saying we can bypass the DAC in the MKII if we have another one? Thinking of getting one that doesn't break the bank. Any suggestions?

 

How do I bypass the DAC in the MKII totally?

post #1895 of 2186
Quote:
Originally Posted by procmail View Post

I have the standard opamp that came with the MKII and use a optical line out from the macbook pro to it. The phone is constantly charging beside it when I listen, and it has never once occurred to think about interference until I read this thread. 

In any case, some folks are saying we can bypass the DAC in the MKII if we have another one? Thinking of getting one that doesn't break the bank. Any suggestions?

How do I bypass the DAC in the MKII totally?

There's a line-in right next to the headphone out. Perhaps look into a modi or odac.
post #1896 of 2186
Quote:
Originally Posted by thegunner100 View Post


There's a line-in right next to the headphone out. Perhaps look into a modi or odac.

So that one will let me bypass the DAC?

 

Sorry noob here. Is this analog?

post #1897 of 2186
Yes, line-in and line-out are analog. That way only the amp section of the leckerton will be used.
post #1898 of 2186
Quote:
Originally Posted by thegunner100 View Post

Yes, line-in and line-out are analog. That way only the amp section of the leckerton will be used.

Thank you.

 

I read about many people referring to how the USB's not as good as the line-out etc. These are all digital.

 

Wouldn't going from DAC->analog->MKII, using analog, be worse?

post #1899 of 2186
Quote:
Originally Posted by procmail View Post

Thank you.

I read about many people referring to how the USB's not as good as the line-out etc. These are all digital.

Wouldn't going from DAC->analog->MKII, using analog, be worse?

I think you mean that the USB section of the uha-6's dac is not that good. Coaxial and optical are better on the uha-6s. That doesn't always apply for all dacs though. A DAC is a digital to analog converter, which converts your digital files into a analog signal that can be processed by an amp, which is then fed to your headphones. So it would just be dac (like odac or modi) -> uha-6s -> headphones.
post #1900 of 2186
Quote:
Originally Posted by thegunner100 View Post


I think you mean that the USB section of the uha-6's dac is not that good. Coaxial and optical are better on the uha-6s. That doesn't always apply for all dacs though. A DAC is a digital to analog converter, which converts your digital files into a analog signal that can be processed by an amp, which is then fed to your headphones. So it would just be dac (like odac or modi) -> uha-6s -> headphones.

Ah, I finally get it.

 

Thanks again!

post #1901 of 2186

I'm still checking out the Odac and Modi, but saw the Aune T1.

 

Anyone knows if this is a good match?

post #1902 of 2186
Quote:
Originally Posted by procmail View Post

I'm still checking out the Odac and Modi, but saw the Aune T1.

Anyone knows if this is a good match?

I have heard the Aune T1 with the stock tubes at my friend's house. I did not like how its dac section (with the stock tubes) sounded. Perhaps a tube upgrade would help it, but I don't think it is better than the odac and modi for the dac section alone. You could also wait for the new leckerton amp/dac, which should have an improved dac section.
post #1903 of 2186
Quote:
Originally Posted by thegunner100 View Post


I have heard the Aune T1 with the stock tubes at my friend's house. I did not like how its dac section (with the stock tubes) sounded. Perhaps a tube upgrade would help it, but I don't think it is better than the odac and modi for the dac section alone. You could also wait for the new leckerton amp/dac, which should have an improved dac section.

Hmmm, ok. Thought it would be interesting to get a tube. 

 

In your opinion, would the Odac or would the Modi pair better?

post #1904 of 2186
I have tried both at individual times with the uha-6s and my UERMs, but have not compared them side by side. Based on my impressions, they perform very similarly and of course, very well.
post #1905 of 2186
Quote:
Originally Posted by thegunner100 View Post

I have tried both at individual times with the uha-6s and my UERMs, but have not compared them side by side. Based on my impressions, they perform very similarly and of course, very well.

I'll see if I can find a place to test them. If not, I'll just have to read more reviews online.

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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)