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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 25

post #361 of 2149
Quote:
Originally Posted by olear View Post

With a RB Clip+, UHA, low gain, volume knob at 1:00 the HD600 sing.  The UHA is definitely more powerful with greater punch and over all  better sounding than the C421.

If I set the gain to high, I can only turn the volume knob a few degrees up as it gets way too loud. 

 

For those that have this amp/dac, is it better to get a coaxal cable and put one end in the HO of the Clip and the other end in the UHA COAX? Now a 3.5mm cable goes from the Clip HO to the UHA input.


No because Coaxil is intended to use the UHA6 MKIIs DAC and bypassing the sources DAC and Amp section. So unless you get a transport or a DAP with Coaxil/Optical you can't use it.

post #362 of 2149

Coax is digital, Clip has no digital output otherwise I'd actually use mine from time to time.

post #363 of 2149

My UHA6smk2 arrives in a week or so (as well as my new Marty custom HPs).  I am in a bit of a cable conundrum.  I know that Nick supplies a micro usb to usb A cable with the amp.  Now is this enough or should I get a good second hand LOD (for iPod listening) and / or optical cable (which would require a mini adaptor for my Mac - I can get a really well priced MIT AVT 1) and / or a Furutech Formula 2 usb cable (which would require a mini to micro usb adaptor to get into the UHA)?

 

I will be using the Leckerton amp and dac off my Macbook pro, my iPod and my iPad using a CCK to bypass the internal amp and dac.  I would ask Nick who has been very good re emails but I don't want to hassle him any more than I already have.  Thanks in advance - and if you want to see my new 'golden ears' Marty is making me see the link below - mine are the lighter coloured 'gold' ones in the second photo.  He is currently making wooden blocks etc for these 'works of art'.

 

http://www.martincustomaudio.com/2012/08/teaser-pics-brazillian-rosewood-and.html

 

Thanks in advance for any help re interconnects etc.  Maybe the cable that Nick provides is enough - or maybe you can let me know if there is anything that will add appreciably to the overall outcome sound wise.

post #364 of 2149
Quote:
Originally Posted by Anaxilus View Post

Coax is digital, Clip has no digital output otherwise I'd actually use mine from time to time.

 

 

Quote:
Originally Posted by lee730 View Post


No because Coaxil is intended to use the UHA6 MKIIs DAC and bypassing the sources DAC and Amp section. So unless you get a transport or a DAP with Coaxil/Optical you can't use it.

Any experience with these: DAPs:

Archos 605 (through DVR dock)
Archos Jukebox Recorder (coax)

Cowon Q5 (forthcoming)

iRiver H120
iRiver H140


 

post #365 of 2149

Just placed my order.  Went with the 627 on a hunch that it's the closest to the sound I like.  Hope it doesn't take too long to ship to Amsterdam.  beyersmile.png

post #366 of 2149
Quote:
Originally Posted by Kendoji View Post

Just placed my order.  Went with the 627 on a hunch that it's the closest to the sound I like.  Hope it doesn't take too long to ship to Amsterdam.  beyersmile.png


I think you'll enjoy it. Very nice, natural and spacious sound. More non-fatiguing. 8610 is my favorite followed by 627.

post #367 of 2149

lee, so the OP627 is smoother Vs. the 209?

Is it easy to swap out one chip to another?

post #368 of 2149
Quote:
Originally Posted by olear View Post

lee, so the OP627 is smoother Vs. the 209?

Is it easy to swap out one chip to another?


IMO yes OP 627 is smoother. 209 will show you more impurities of the tracks. Including the impurities that are not meant to be in the tracks (digital artifacts during conversion to analog lol). It is easy to switch out the Op Amps. The board is a pin board. Just use tweezers or a DIP extractor to carefully remove the chips (2 chips) then replace them with the other chips.

post #369 of 2149
Quote:
Originally Posted by lee730 View Post


IMO yes OP 627 is smoother. 209 will show you more impurities of the tracks. Including the impurities that are not meant to be in the tracks (digital artifacts during conversion to analog lol). It is easy to switch out the Op Amps. The board is a pin board. Just use tweezers or a DIP extractor to carefully remove the chips (2 chips) then replace them with the other chips.

If you had to choose one OP amp, would you choose the 627?

What are the AD8610 ARZ and AD797ANZ?

I was listening to my EX1000 with Leckerton (OP209) and Clip+ and the bass does sound better and hit much harder compared to listening w/o the Leckerton.  I chose the 209 thinking I was going to use the Leckerton for the full sized HD600 and the synergy would fit better with the already warm Senns. It's good to have the choice, especially when using with IEMs.  Thanks

post #370 of 2149

That's really hard to decide to be honest. Well if I had to chose one out of the 3 I'd choose 8610 because it has qualities of both 209 and 627. 8610 is quite neutral with just a hint of warmth, the mid-range has a very nice added clarity to it. The sound is more focused on depth with a reasonably wide (not very wide though) sound stage. 209 is very nice but gets tiring after a while. I have to be in the mood for it so it won't get used all the time. I'm much more apt to use 8610 or 627. 627 has both a very nice mid range and bass. Treble is more smooth on it. Sound stage is rather dynamic and wide. 3D like.

 

Before ordering a pair of OP-Amps though make sure to contact Nick from Leckerton to make sure the Op-Amps you are deciding on will fit directly into the board. You don't want to buy the chips without the adapters attached to them. It would be a PITA to solder them plus they are delicate. I'd rather not go that route to save a couple bucks :). But the Op Amp from Mouser 627AP is a direct fit. The chip is also large in comparison to Op-Amp 8610 and 209. No wonder the battery life is greatly compromised. Still more than enough for my needs though.


Edited by lee730 - 8/30/12 at 4:34pm
post #371 of 2149

I don't think it is that possible to recommend an ideal pair of op-amps because of the different gears we each use as well as our listening preferences/mood.

 

I bought the UHA6SMKII with stock opa209 and then ordered another pair of opa627ap from an independent source for USD30 shipped. For an extra USD30, it gives me option.

 

If you were to order from Nick the UHA6SMKII with opa627ap fitted and then add another pair of opa209, the total extra cost would come up to USD70 (50+20).

post #372 of 2149

I ordered my pair from mouser. It was about $18.00 each one. I was to worried about getting fakes (I hear there are loads of fakes out) so I went to the lowest source I could find that was indeed genuine. I paid an extra $10.00 for 8610 and bought a pair of 209 from Nick for $20.00
 

post #373 of 2149
Quote:
Originally Posted by lee730 View Post

I ordered my pair from mouser. It was about $18.00 each one. I was to worried about getting fakes (I hear there are loads of fakes out) so I went to the lowest source I could find that was indeed genuine. I paid an extra $10.00 for 8610 and bought a pair of 209 from Nick for $20.00

 

Yeah many fake ones around, you need to buy from trusted source.

 

I would think that mouser would be a good place for those in the U.S.

 

Or, maybe you all can bug HiFlight. :p

post #374 of 2149

If I op amp role, I think I would just buy them all.

 

That being said, the 209 doesn't seem to lack anything for my tastes, so I may never try the others. It's just nice to have options.


Edited by robm321 - 8/30/12 at 4:47pm
post #375 of 2149
Quote:
Originally Posted by uelover View Post

 

Yeah many fake ones around, you need to buy from trusted source.

 

I would think that mouser would be a good place for those in the U.S.

 

Or, maybe you all can bug HiFlight. :p


More like I wanna bug HiFlight to demo his tera player lol ;)

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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)