Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › anyone tried the leckerton amps with the opa 627?
New Posts  All Forums:Forum Nav:

anyone tried the leckerton amps with the opa 627? - Page 3

post #31 of 35
1/10/12 at 5:47am

I own ER4S and XBA-4 which required output imdpence of less than 1 ohms. I love to have  amp which can do justice to ER4S.Which opamp benefits me the most? Thanks in advance. 

Reply
post #32 of 35
1/10/12 at 3:49pm
Quote:
Originally Posted by audionewbi View Post

I own ER4S and XBA-4 which required output imdpence of less than 1 ohms. I love to have  amp which can do justice to ER4S.Which opamp benefits me the most? Thanks in advance. 

I owned the UHA-4 with the OPA209 opamps and found it to provide a very smooth and neutral balance across the full audio spectrum. I am not a big fan of the OPA627 as I personally think its performance for audio has been over-rated. I have tried it in many amps during my testing and never found an instance where it justified its cost.

IMHO, the 209 outperforms the 627 when used in battery-powered headphone amps.

I don't know what the impedance of your XBA-4 is, but with the 75 ohm ER4S, any output impedance less than about 9 should work just fine.
Reply
post #33 of 35
1/10/12 at 5:24pm
Quote:
Originally Posted by HiFlight View Post


I owned the UHA-4 with the OPA209 opamps and found it to provide a very smooth and neutral balance across the full audio spectrum. I am not a big fan of the OPA627 as I personally think its performance for audio has been over-rated. I have tried it in many amps during my testing and never found an instance where it justified its cost.
IMHO, the 209 outperforms the 627 when used in battery-powered headphone amps.
I don't know what the impedance of your XBA-4 is, but with the 75 ohm ER4S, any output impedance less than about 9 should work just fine.


Thanks for this, really helps. XBA-A has an impedance of 8 at 1 kHz. Will be ordering it soon. Thank you for your helpful advice. 

Reply
post #34 of 35
4/16/12 at 1:39pm

 

Why is this DAC/Amp not more popular?  I have my eye on the OPA627 version, love it's size.

 

Reply
post #35 of 35
4/16/12 at 4:27pm
Quote:
Originally Posted by kiteki View Post

 

Why is this DAC/Amp not more popular?  I have my eye on the OPA627 version, love it's size.

 


I beleive it's because Nick was in the middle of moving facilities.  He mentioned quite a bit of demand but the move hampered supply.  This should be fixed soon and the UHA4 is shipping now.  The UHA6SII has a nice new form factor.  I look forward to seeing how it compares w/ my first version.

 

Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › anyone tried the leckerton amps with the opa 627?