Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › P4 the Warbler a new portable amp from iBasso . . first impression pg 3 . images Pg 6&7 . . .
New Posts  All Forums:Forum Nav:

P4 the Warbler a new portable amp from iBasso . . first impression pg 3 . images Pg 6&7 . . . - Page 23

post #331 of 528
Quote:
Originally Posted by SpudHarris View Post

Search e-bay for ''soic to dip'' adapters on e-bay.

 

OPA627BP are expensive and there are better chips out there costing a lot less. Most are listed in this thread.... I'm off to work now so don't have time to list now but will do later if you wish.


I find OPA627 to be nothing fantastic but it works generally well with everything thrown at it. You will never get listening fatigue with it onboard but you will also not be able to get that kind of excitement that makes you wanna get up of your seat and dance.

 

post #332 of 528
Some opamps that work well in the P4 are THS4032, ISL55002, LT1355, LT1678 AD8599, OPA2209, OPA1642, OPA1612 just to name a few. All of these are less expensive than the OP627/637.

iBasso has also included a very nice selection in the P4 rolling kit.
Edited by HiFlight - 12/13/11 at 10:17am
post #333 of 528

Forget RMAF - we need to get Ron and Spudley in a room to talk us through every conceivable combination of opamps/buffers, following by an afternoon prac session and extensive DBT. I'd love to put the P4 up against some of its more fancied single-ended opposition.

post #334 of 528
Quote:
Originally Posted by estreeter View Post

Forget RMAF - we need to get Ron and Spudley in a room to talk us through every conceivable combination of opamps/buffers, following by an afternoon prac session and extensive DBT. I'd love to put the P4 up against some of its more fancied single-ended opposition.


Not to forget the most important thing - the supply of all the opamps.

 

We can forget about Ron abd Spudley. Just leave all the opamps/buffers there and it will be good enough bigsmile_face.gif

 

jk.

post #335 of 528

You're a real team player, uelover. very_evil_smiley.gif

post #336 of 528
Quote:
Originally Posted by estreeter View Post

You're a real team player, uelover. very_evil_smiley.gif



evil_smiley.gif

 

Anyone knows if this works with the P4??

http://coolfungadget.com/store/index.php?route=product/product&product_id=91

post #337 of 528
Quote:
Originally Posted by uelover View Post



evil_smiley.gif

Anyone knows if this works with the P4??
http://coolfungadget.com/store/index.php?route=product/product&product_id=91

That adapter would fit and probably work OK, but the price is "too good to be true" as the cost from most suppliers is about $24 EACH for the OPA627AP. The adapter, sockets, resistors and labor to assemble would add yet more to the cost. Perhaps the opamps are counterfeit rather than authentic Burr-Brown??

I would want proof of authenticity before ordering.
post #338 of 528

x2

 

I'm with Ron on this, there are a lot of fakes around unfortunately. I learned the hard way in the early days and unless I am 110% sure I generally buy from trusted sources like Farnell, Digikey, Mouser or RS. Of course I do get a few samples from source also biggrin.gif

 

The old saying still stands - If it looks too good to be true, then it probably is...... My advice would be to buy from a genuine source and do the mod yourself.

post #339 of 528

Actually that guy is one of the seller of the Matrix M-Stage headamp. Quite well-known though. He modded that opamp specially for the M-Stage V2.

 

I got my Dual OPA627 from Vintage Audio Lab. Cost me about the same amount as this one.

post #340 of 528
Quote:
Originally Posted by HiFlight View Post

Some opamps that work well in the P4 are THS4032, ISL55002, LT1355, LT1678 AD8599, OPA2209, OPA1642, OPA1612 just to name a few. All of these are less expensive than the OP627/637.
iBasso has also included a very nice selection in the P4 rolling kit.



Thanks for the heads-up!

 

I presume these are all for the L/R sockets.....

 

In your experience (you seem to have more than most users), which of these are the best for soundstag and dynamics?

 

post #341 of 528

So what is the p4 like compared to say fiio e7, am i in for quite a leap in sound?

 

 

 

 

post #342 of 528
Quote:
Originally Posted by Huxley View Post

So what is the p4 like compared to say fiio e7, am i in for quite a leap in sound?

 

 

 

 

Yes, It is a different class in term of power, transparency, detail, soundstage..

 

BTW E7 is DAC+AMP... should be compared with D-Zero?
 

 

post #343 of 528
Quote:
Originally Posted by Huxley View Post

So what is the p4 like compared to say fiio e7, am i in for quite a leap in sound?

 

 

 

 



That will depend entirely on your source - with a poor source, I believe the P4 will actually bite you very badly.

post #344 of 528

Source is my sansa fuze with custom lod, i think there's decent caps inside paid enough for the thing.

 

And i run 320kbps or flac where i can.I do have lower bitrates but that tends to be edm, so not really vital there as the dj's tend to mix things up anyway, if you get what i mean.

 

And yeah i know the e7 is a dac/amp but it's the only portable amp i have atm, i went for the warbler because it represents such good value, from what i've read it holds it's own with more expensive models.

 

Aah, you're the guy who put a drillbit through his p4, that must have been rather gutting.


Edited by Huxley - 12/17/11 at 2:07am
post #345 of 528
Quote:
Originally Posted by estreeter View Post


That will depend entirely on your source - with a poor source, I believe the P4 will actually bite you very badly.


 

No that is not true. It depends on the internal opamps configuration. P4 is a chameleon.

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › P4 the Warbler a new portable amp from iBasso . . first impression pg 3 . images Pg 6&7 . . .