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The Sub-$200 Portable Amps Shootout – 13 (+11) amps compared - Page 29

post #421 of 454

I have recently purchased an HD600, and looking forward to buy an amp within 200$

 

Portability doesnt matter much for me.

 

I was thinking about E12 and O2. Which one to pick?

post #422 of 454
I am just thinking about opamp in C5, what if it change to LME49720ma ? maybe would be a good deal create more soundstage width.
just say
post #423 of 454
Thread Starter 
Quote:
Originally Posted by YoYo JoKeR View Post
 

I have recently purchased an HD600, and looking forward to buy an amp within 200$

 

Portability doesnt matter much for me.

 

I was thinking about E12 and O2. Which one to pick?

 

Both are fine. O2 will be a bit more transparent while E12 is more powerful. If bass boost and crossfeed ain't something you are going to use, pick O2. There is also E12DIY, which with the right opamp, can sound as transparent as O2, and offer similar power as regular E12.

 

Quote:
Originally Posted by palermo View Post

I am just thinking about opamp in C5, what if it change to LME49720ma ? maybe would be a good deal create more soundstage width.
just say

 

Hard to say as it involves the whole circuit. But I'll make a guess and say it might turns out to be cleaner sounding than OPA2227. Again, I am just guessing.

post #424 of 454
Quote:
Originally Posted by YoYo JoKeR View Post
 

I have recently purchased an HD600, and looking forward to buy an amp within 200$

 

Portability doesnt matter much for me.

 

I was thinking about E12 and O2. Which one to pick?

For under 200 I'd go with Schiit Audio so you can get both an AMP and a DAC for that value. A good DAC is just as important as a good amp. You can get the Magni amp and Modi DAC for $198. 

post #425 of 454
Quote:
Originally Posted by ClieOS View Post
 

Hard to say as it involves the whole circuit. But I'll make a guess and say it might turns out to be cleaner sounding than OPA2227. Again, I am just guessing.

 

Done! 
Yes, I could hear more clear with good detail in mid-hi. 

post #426 of 454

I find O2 lacking in power to drive an HD600.

 

Even after pressing the gain switch, maximum and setting player's volume to maximum, O2 seems to just drive them with volume knob 80% on, with not enough power remaining on the reserve.

 

Is everybody having this problem? or is it me?

post #427 of 454

Out of curiosity, where would you rank the FiiO E18 on this list?

When I got the E18 I was not really thinking I was going to keep it as I was about to receive the E17 as well and I was biased due to the display and treble/bass controls  but I dont know if my mind is playing tricks on me but the E18 seems to have better dynamics and instrument separation so not it seems my goal of selling the E18 for a quick profit as I got it for a good price used, is not going to happen lol

post #428 of 454
Quote:
Originally Posted by YoYo JoKeR View Post
 

I find O2 lacking in power to drive an HD600.

 

Even after pressing the gain switch, maximum and setting player's volume to maximum, O2 seems to just drive them with volume knob 80% on, with not enough power remaining on the reserve.

 

Is everybody having this problem? or is it me?


Yes, I've got that problem too. O2 also lack power to bring out dynamic on HD650.
It why there is threat in diyaudio, modify buffer section of O2. 

post #429 of 454
Quote:
Originally Posted by palermo View Post
 


Yes, I've got that problem too. O2 also lack power to bring out dynamic on HD650.
It why there is threat in diyaudio, modify buffer section of O2. 


How to do it? any link would be helpful.

 

Other than this no other problem. Amplifier is superB.

post #430 of 454

this is link from there, 
http://www.diyaudio.com/forums/headphone-systems/244473-o2-headamp-output-booster-pcb.html

 

the same ID made it too in head-fi DIY section, but many people in head-fi seem less interested  
http://www.head-fi.org/t/693300/o2-headamp-output-booster-modification-pcb

 

post #431 of 454
Thread Starter 
Quote:
Originally Posted by shaolin95 View Post
 

Out of curiosity, where would you rank the FiiO E18 on this list?

When I got the E18 I was not really thinking I was going to keep it as I was about to receive the E17 as well and I was biased due to the display and treble/bass controls  but I dont know if my mind is playing tricks on me but the E18 seems to have better dynamics and instrument separation so not it seems my goal of selling the E18 for a quick profit as I got it for a good price used, is not going to happen lol

 

Your mind (and ears) isn't playing trick as E18 is indeed better sounding than E17, by a good margin no less. I'll place it 4th on the ranking, either Just a step behind E12.

post #432 of 454

That will be vs an AMP only I see. I forgot it was not a thread about amp/dacs. Good deal and good to know I am not imagining things lol 

Like this song has vocals that start in Stereo very wide and slowly keep getting closer until the main singers starts and with the E17 the separation is not as clear as with the E18. That was the first song got me curious to test more. Thanks for the confirmation!
 


Edited by shaolin95 - 3/7/14 at 10:19am
post #433 of 454
Thread Starter 

Even as DAC, E18 is still a little ahead  But with most DAC comparison, the noticeable difference will be smaller.

post #434 of 454

Little off topic,

 

But

Matrix M stage V/s O2 very much worth discussing.

 

Who would be winner and by what all aspects.

post #435 of 454
Quote:
Originally Posted by ClieOS View Post
 

 

Both are fine. O2 will be a bit more transparent while E12 is more powerful. If bass boost and crossfeed ain't something you are going to use, pick O2. There is also E12DIY, which with the right opamp, can sound as transparent as O2, and offer similar power as regular E12.

 

 

Hard to say as it involves the whole circuit. But I'll make a guess and say it might turns out to be cleaner sounding than OPA2227. Again, I am just guessing.

 

Hi ClieOS, I am curious about how the original E12 compares in terms of transparency and soundstage to the E12DIY when it is fitted with the same OPA1611 and LME49600 chips as the original E12. Does the more simplified circuitry of the E12DIY improve the transparency/soundstage if using the two same chips mentioned? Is the improvement substantial? Thanks!

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