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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 146

post #2176 of 2184
I understand, thank you. I found a few -very- favorable opinions regarding the Dx90/O2 combo. What do you think?
post #2177 of 2184
I use Dx90/O2 combo to drive my T1 in a desktop setup. It has more than enough power for T1. I like the combo better than my Centrance Hifi-M8.

I am planning to get an ODAC/O2 combo just for my exclusive desktop setup.
post #2178 of 2184
Thanks for your comments, headwhacker. I was considering this combo. and as I'm a bit of a newb I really appreciated your analysis. I note on the leckerton product page http://www.leckertonaudio.com/products/uha-6s-mkii/ that the amp. max. output varies by opamp, AD8610 versus AD8620. Which did you test with, and do you think it would affect the results?

If this doesn't change the "no benefit" conclusion, is there another portable amp/dac under $300 you do think may help drive higher ohm cans better than the DX90 alone?

Thanks agian for helping a novice spend wisely!!!
post #2179 of 2184
Quote:
Originally Posted by LoryWiv View Post

Thanks for your comments, headwhacker. I was considering this combo. and as I'm a bit of a newb I really appreciated your analysis. I note on the leckerton product page http://www.leckertonaudio.com/products/uha-6s-mkii/ that the amp. max. output varies by opamp, AD8610 versus AD8620. Which did you test with, and do you think it would affect the results?

If this doesn't change the "no benefit" conclusion, is there another portable amp/dac under $300 you do think may help drive higher ohm cans better than the DX90 alone?

Thanks agian for helping a novice spend wisely!!!

 

AD8620 provides more current which is only relevant for low sensitivity, low impedance phones. Even then I think is still not enough. It won't matter with headphones greater than 100 ohms.

 

Only O2 I know that can drive most cans which below 300USD. This is exactly what I asked Nick from Leckerton before. An amp with the similar dimensions as the UHA-6MKII and the same power output as the O2.

post #2180 of 2184

Thanks for clarifying. If only the ODAC/O2 was battery driven / portable. I do like that versatilty even around the house. Any experience or thoughts on pairing DX90 with Senn HD598 unamped? I listen to a lot of solo instrumental or folk-rock music, some classic rock and jazz, and these are well regarded by some for those genres. I believe they are 50 ohms. Sorry if this is too off topic, I'll search for a dx90 / senn thread as well.

 

Thanks!


Edited by LoryWiv - 8/26/14 at 10:19pm
post #2181 of 2184
Quote:
Originally Posted by headwhacker View Post

Quote:
Originally Posted by rzvnz View Post

I am considering a UHA-6S MKII (with ADA4627-1B) to pair with DX90 from iBasso -only as amp- , but I am not sure if there would really be an improvement (for  using  AKG-702, Sony MDR SA-5000, Grado SR 325i, Beyerdynamic DT-880 250ohm). What is your experience?


 



UHA-6SMKII is not going to improve DX90. You will actually lose something if you stack DX90 with UHA-6SMKII in terms of power output. DX90's amp is capable of delivering more power and lower THD than what UHA-6SMKII can offer. The built-in amp of DX90 was built/design specifically so you don't need a stack to go with it.

To be honest most portable amp is virtually useless on DX90. The only time you need an amp is if you are driving power hungry cans the built-in amp can't properly drive.

Having said that, the Leckerton did an amazing job complementing my DX50. DX50's amp on paper is as powerful as DX90 but in practice it's lackluster and pairing it with UHA-6SMKII makes it a whole lotta better listening experience.

Pairing DX90 with UHA-6SMKII using my Roxanne sound similar when connected directly out of DX90's HO. The Leckerton actually doesn't sound as good as the HO when I use full-size cans like my Grado 325e and Beyer DT250. Also T1 sounds better albeit a bit underpowered directly out of the HO (@ high gain). Leckerton simply just can't drive T1 to an acceptable quality at lower volume. (But then it's not designed to drive 600-ohm cans).

I am going to offer a different opinion. I mostly only use the DX90 with either the Leckerton or the PB2. This is to either Triple Fi 10s or Sennheiser HD600s. I would agree that you don't *have* to' but is it better, in my opinion, yes it is.

The Leckerton with OP627s sounds sublime, smooth and the timbre of the music is almost tubelike.

I find also the Leckerton a very versatile unit.

Not only can I use it as a headphone amp with the DX90, it can also take the coax output from it.

Now having recently signed up to Spotify premium, I now use it to play the offline stored music tracks as a DAC/Amp by taking the digital bytes output from my iPhone 5 into the DAC of the Leckerton.
post #2182 of 2184
Quote:
Originally Posted by LoryWiv View Post
 

Thanks for clarifying. If only the ODAC/O2 was battery driven / portable. I do like that versatilty even around the house. Any experience or thoughts on pairing DX90 with Senn HD598 unamped? I listen to a lot of solo instrumental or folk-rock music, some classic rock and jazz, and these are well regarded by some for those genres. I believe they are 50 ohms. Sorry if this is too off topic, I'll search for a dx90 / senn thread as well.

 

Thanks!

 

You probably already know this, but just in case: as long as you don't get the combined O2/ODAC unit, the combo technically is portable, is just isn't small enough to be pocketable. The ODAC runs off USB bus power from the source device, and the O2 has its own battery. When I first got mine, I used velcro straps to keep the two together and listened to it while I was in the car and on an airplane.

 

Just a thought! :)

post #2183 of 2184

Thanks, Theogenes. That's good info. Still aiming for something with O2/ODAC performance but more truly portable, usb charge for simplicity. The hunt continues.


Edited by LoryWiv - 8/28/14 at 10:55am
post #2184 of 2184
Quote:
Originally Posted by LoryWiv View Post
 

Thanks, Theogenes. That's good info. Still aiming for something with O2/ODAC performance but more truly portable, usb charge for simplicity. The hunt continues.

 

No problem man. I will say that thus far, the Leck is the best overall portable amp I've heard, even over a few others I really liked (Meier PCSTEP, O2, Apex Glacier, iBasso D-Zero, etc). Just a superb little amp.

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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)