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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 131

post #1951 of 2196
Quote:
Originally Posted by DMinor View Post
 

 

Have you noticed any sound difference between the two (say with the crossfeed turned off on 760 and both at lowest gain)?

 

I can't say I've noticed a difference. The 760 has better volume matching at very low volumes, making it a little better for extremely sensitive iems. Other than that, both amps sound completely colorless to me.

post #1952 of 2196

I agree the amp sounds colorless and very neutral. Just love this amp, and to my ears excellent combo with the EX1000 and my diymod. I have been using this amp and the EX1000 as a benchmark to test my multiple diymods with various caps.

 

post #1953 of 2196
Thread Starter 

Hi guys, long time no chat. For those who may be interested, I've just thrown my UHA-6S up on the FS forums. Included in the deal will be 2 extra sets of op amps. The condition of the unit is excellent and the only reason I'm letting this amp go if because I now own the AK120 as well as a CLAS-db/RXMKIII-B rig.

post #1954 of 2196

I'm also letting go of my UHA760 amp. It is in excellent condition and sounds superb :P.

 

 

http://www.head-fi.org/t/698537/leckerton-uh760-for-sale

post #1955 of 2196

Hey you guys ;)

 

speaking about the 6smkII;

state #1: low gain, volume is at ~3

state #2: high gain, volume is at ~10

 

if i'm listening on state#1, does it short the battery life ?

post #1956 of 2196
I just got my UHA-6S MKII with ADA4627-1A opamp today. Still doing some burn in. My initial impression so far is transparency, soundstage and imaging is at the same level as O2 if not better. It's definitely a huge improvement over UHA-4(OPA627) especially on bass slam and impact.

Will do a thorough comparison as soon as it has reach 100 hours burn in time.
post #1957 of 2196
Quote:
Originally Posted by headwhacker View Post

I just got my UHA-6S MKII with ADA4627-1A opamp today. Still doing some burn in. My initial impression so far is transparency, soundstage and imaging is at the same level as O2 if not better. It's definitely a huge improvement over UHA-4(OPA627) especially on bass slam and impact.

Will do a thorough comparison as soon as it has reach 100 hours burn in time.

 

Yeah, I found the UHA-6S MKII to be better than the O2 as well. (I'm using AD8610.) Didn't originally buy it it replace the O2 - bought it for USB OTG use with my Note 2, so the improvement for my desktop setup was a pleasant surprise. 

post #1958 of 2196
Quote:
Originally Posted by headwhacker View Post

I just got my UHA-6S MKII with ADA4627-1A opamp today. Still doing some burn in. My initial impression so far is transparency, soundstage and imaging is at the same level as O2 if not better. It's definitely a huge improvement over UHA-4(OPA627) especially on bass slam and impact.

Will do a thorough comparison as soon as it has reach 100 hours burn in time.

 

Yeah the amp is transparent. It's amazing this little amp so light can do this well. I also like how Nick designed it without using any dc blocking caps along the audio path yet it can compensate any seen dc offsets and drive it to zero at output.

post #1959 of 2196

I'm enjoying this amp at the moment and it seems like it could keep my O2 in the drawer for a long time.

 

The only issue I notice so far is the USB power is very noisy. I can here noise/hiss when connected to a USB power charger even on a 600-ohm T1.

 

But definitely clean and silent on battery power. I don't know if it's just my charger or just normal for USB power supply in general.

post #1960 of 2196

I never noticed any noises from usb charging (from laptop or desktop) while listening to music. Not sure if my iem (EX1000) is not sensitive enough to detect the noise, which I doubt.

post #1961 of 2196

No noise from mine, but with the same caveat that I might not be listening to as sensitive instruments. 

post #1962 of 2196

I have no noise from mine, either.  With my SE535 (which always picks up noise) or on my Heir 8.A or Noble K10.

post #1963 of 2196
Quote:
Originally Posted by headwhacker View Post
 

I'm enjoying this amp at the moment and it seems like it could keep my O2 in the drawer for a long time.

 

The only issue I notice so far is the USB power is very noisy. I can here noise/hiss when connected to a USB power charger even on a 600-ohm T1.

 

But definitely clean and silent on battery power. I don't know if it's just my charger or just normal for USB power supply in general.

That happens if you suddenly unplug the charger and plug it back in or something. It goes away if you turn the charging(switch) on and off. I get it sometimes too.

post #1964 of 2196

I have one Leckertons for trade with a desktop amp

http://www.head-fi.org/t/702531/leckerton-uha-6s-mkii-for-a-desktop-amp-or-dac

post #1965 of 2196

Are there any other portable amps designed similarly to the UHA-6S.mk2 without using dc coupling caps in the audio path?


Edited by DMinor - 2/2/14 at 12:45am
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