Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › O2 AMP + ODAC
New Posts  All Forums:Forum Nav:

O2 AMP + ODAC - Page 182

post #2716 of 3771
You know. You can nit pick all you like but the O2 with the Sennheiser HD600's is phenomenal. I'm sitting here listening to ZZ. Top. All the grunge and distortion that the band intend is all there but it is like the crust on a pie. The O2 lifts the lid so that you get all the lovely juicy bits inside. smily_headphones1.gif and all for under£400! Crazy.
Edited by krismusic - 4/20/14 at 8:54am
post #2717 of 3771
Quote:
Originally Posted by adydula View Post
 

Kool I humbly disagree....

 

Its your bucks enjoy...

 

A.

No problem, it 'd be boring if everyone was in perfect agreement all the time.

 

About the amping and the powering of headphones, the best non-sound analogy I can think of would be those limited power versions of motorcycles that people who are not yet 24/don't have their license for a sufficiently long time yet can purchase/ride with.  Sure, they run.  But the second you can pull the plugs out and have full power available they're something different.  

 

I know it's far from a perfect analogy and stipulate that the degree to which this will manifest itself differs but you catch the meaning.

 

Will take a look at that J River player again tomorrow, indeed a crapload of option menus to wade through

post #2718 of 3771
Quote:
Originally Posted by krismusic View Post

You know. You can nit pick all you like but the O2 with the Sennheiser HD600's is phenomenal. I'm sitting here listening to ZZ. Top. All the grunge and distortion that the band intend is all there but it is like the crust on a pie. The O2 lifts the lid so that you get all the lovely juicy bits inside. smily_headphones1.gif and all for under£400! Crazy.

^this^
Quote:
Originally Posted by Xenophon View Post

No problem, it 'd be boring if everyone was in perfect agreement all the time.

About the amping and the powering of headphones, the best non-sound analogy I can think of would be those limited power versions of motorcycles that people who are not yet 24/don't have their license for a sufficiently long time yet can purchase/ride with.  Sure, they run.  But the second you can pull the plugs out and have full power available they're something different.  

I know it's far from a perfect analogy and stipulate that the degree to which this will manifest itself differs but you catch the meaning.

Will take a look at that J River player again tomorrow, indeed a crapload of option menus to wade through

JRiver is good. It's not pretty but it's good. A big plus - for me - is that it allows remote control via various devices.
post #2719 of 3771
Quote:
Originally Posted by Zorrofox View Post

^this^
JRiver is good. It's not pretty but it's good. A big plus - for me - is that it allows remote control via various devices.

I went through all the settings and turned off all the options. I allowed the rest to be their default values. I found that players that tout bit-perfect playback come out of the box that way where all parameters are set to their default. There was still a small difference between the Audirvana+ and J River players. I would of not thought anything of these small difference if it were not for the test subjects ability to pick out J River. But there will be more significant differences in the area of lossy audio files and sample rate conversion. Both involve mathematical operations where there are trade offs between different approaches.

By the way, I did extensive blind testing with a musician that had a well-trained ear with good FR. I cannot call the results conclusive, but IMO they are highly suggestive.

And I just discovered the remote control aspect of J River. Next is setting it up to stream music across the Internet to my iPad when I am in a sit down bookstore or coffee shop. The C5D which I also own will come in handy here.

Life is sweet! smily_headphones1.gif

PS: the discussion of my blind testing started here: http://www.head-fi.org/t/699832/mac-users-what-audio-player-do-you-guys-use/30
Edited by r010159 - 4/20/14 at 11:52pm
post #2720 of 3771

Its amazing to compare an O2 amp that can be had for less than $100 to a B22 that fully assembled can easliy cost $1000+. There are folks that have compared these two and cant hear any real world differences.

 

Its hard for folks not to think that the more a piece of gear costs the better it will sound.

 

Its also nice to have a world class amp and dac for the low cost the o2 and odac provide many of us that cant afford the higher priced end stuff.

 

Like I said it your money...enjoy....

 

Motorcycles!!! If you only knew...

 

A.

post #2721 of 3771
Quote:
Originally Posted by SilverEars View Post
 

Sonically speaking, I favored the 650 with Tubes.  Tubes are regarded as having higher distortion and providing 2nd harmonic distortion that people may favor the coloration of the sound.  

 

At the meet I've heard the LCD-3 with Isabella, a tube amp which sounded fantastic, also Alpha Dogs mr. speakers brought with his top tube amp sounded fantastic.  I believe amps generally do not have the level of distortion as the headphones.

 

What is this booster mod you speak of? I'm curious to try it.  Thanks.

 

SilverEars - here's the link to the diyaudio thread on agdr's booster board: http://www.diyaudio.com/forums/headphone-systems/244473-o2-headamp-output-booster-pcb.html

 

Starting in late-May, agdr has also indicated that he will be selling completed booster boards for those who don't want to take on the surface mount work: http://www.agdraudio.com/Page2.html

 

I completed mine a week or so back and find that it is a very nice improvement on the stock O2, along with the dual LME49990's you can add to the gain stage to up the slew rate.  Really enjoying the finished result with my AD's as a bedside rig.  

post #2722 of 3771
Quote:
Originally Posted by adydula View Post
 

Its amazing to compare an O2 amp that can be had for less than $100 to a B22 that fully assembled can easliy cost $1000+. There are folks that have compared these two and cant hear any real world differences.

 

Its hard for folks not to think that the more a piece of gear costs the better it will sound.

 

Its also nice to have a world class amp and dac for the low cost the o2 and odac provide many of us that cant afford the higher priced end stuff.

 

Like I said it your money...enjoy....

 

Motorcycles!!! If you only knew...

 

A.

It are two very different products with different properties, I'm not comparing them, the only thing I'm saying is that -being a HE-6 owner- the B22 is the only viable option for me if I'd have to choose between those 2.  That's a simple fact that even the developer himself wouldn't dispute.  Can't say about LCD-2 as I've never heard them on any amplifier.  

 

My point is that the O2 isn't the end all in terms of amplification and one shouldn't go overboard in trying to make out like if it were.  Every piece of gear has weaknesses and in the end it's as you say:  if you have the money then it's yours to spend and until further notice nobody can tell you what to spend it on.  Speaking just for myself I know full well that more money doesn't equate automatically to more quality, audio's full of vapourware, nice cases containing badly assembled junk and assorted BS.  

 

Analogy to motorcycles chosen because I happen to ride an Enfield here in India and an MV Agusta brutale in Europe....talk about the right tool for different circumstances.

post #2723 of 3771
Quote:
Originally Posted by Xenophon View Post
 

It are two very different products with different properties, I'm not comparing them, the only thing I'm saying is that -being a HE-6 owner- the B22 is the only viable option for me if I'd have to choose between those 2.  That's a simple fact that even the developer himself wouldn't dispute.  Can't say about LCD-2 as I've never heard them on any amplifier.  

 

My point is that the O2 isn't the end all in terms of amplification and one shouldn't go overboard in trying to make out like if it were.  Every piece of gear has weaknesses and in the end it's as you say:  if you have the money then it's yours to spend and until further notice nobody can tell you what to spend it on.  Speaking just for myself I know full well that more money doesn't equate automatically to more quality, audio's full of vapourware, nice cases containing badly assembled junk and assorted BS.  

 

Analogy to motorcycles chosen because I happen to ride an Enfield here in India and an MV Agusta brutale in Europe....talk about the right tool for different circumstances.


I agree.
With He-6 , I have seen the match showing that O2 can't properly drive it.
LCD-2 though, maybe my math is off:L3000:

post #2724 of 3771
Quote:
Originally Posted by adydula View Post
 

Its amazing to compare an O2 amp that can be had for less than $100 to a B22 that fully assembled can easliy cost $1000+. There are folks that have compared these two and cant hear any real world differences.

 

Its hard for folks not to think that the more a piece of gear costs the better it will sound.

 

Its also nice to have a world class amp and dac for the low cost the o2 and odac provide many of us that cant afford the higher priced end stuff.

 

Like I said it your money...enjoy....

 

Motorcycles!!! If you only knew...

 

A.

 

Don't take that post too seriously, O2 is very good indeed but it has its limit. I think the guy who posted that comparison just doesn't have really good hearing ability. I haven't heard the B22 with my own gear and setup but O2 is still 1 step down compare to my PPAV2 and 2 step down compare to my friend's Dynalo, with me i can hear the different very clearly and the O2 is definitely not up to level of these two so i don't even care to compare it to B22.

post #2725 of 3771

OT but I've been playing some more with this JRiver player (on my MBP).  Too many options and scattered all over the place would be my main criticism for now.  Forget my previous remark about it not sounding good, I screwed up a config option.  I take it that the blue icon meant to indicate bit perfect rendition is the EQ symbol that I marked below.  Will try and run some comparisons with Amarra but in the looks department it's already the hands-down winner.

 

post #2726 of 3771
Quote:
Originally Posted by Xenophon View Post

OT but I've been playing some more with this JRiver player (on my MBP).  Too many options and scattered all over the place would be my main criticism for now.  Forget my previous remark about it not sounding good, I screwed up a config option.  I take it that the blue icon meant to indicate bit perfect rendition is the EQ symbol that I marked below.  Will try and run some comparisons with Amarra but in the looks department it's already the hands-down winner.



The indicator is only there with the Noire default skin. I turned adaptive volume off which made a noticeable difference in volume where now I do not have to turn up the O2. I have found the last two versions to be problematic with DSP Studio. After I make some changes and then listen to the music, the volume begins to cut in and out. When I leave DSP Studio, this behaviour stops. Once again I do not think this is the O2, because this never happens any other time.

So the lesson of the day Is when the sound cuts in and out, even with static at times, first check your connections. Then check your software, the player in my case. Turning off the playback from memory option solved most of my problems.
Edited by r010159 - 4/21/14 at 8:16am
post #2727 of 3771

NP I don't take posts seriously anymore...not worth it....all I know is I have owned LCD2's and the O2 has the capability to blow you ear drums out with it..

 

There are other amps that would drive the HE6's as well as the B22 but this is an O2 ODAC thread so lets agree to take these issues up in the appropriate thread.

 

I will say this regardless of what has or will be posted...try your cans with an O2, YOURSELF and see if it meets your standards or not...don't trust me or anyone else.

 

Recommendations are great but lots of them are biased.

 

Motorcycles!

 

I have spent more time in the past 20 years of racetracks at speeds of 180mph+ than I care to remember and have taught high speed race skills on many tracks here in the USA.

 

We used to say 'Go fast or Go Home!!'

 

LOL

 

Alex

post #2728 of 3771

With the JRiver....many of those options are NOT needed for Bitperfect playback.

 

Bit Perfect playback is easy to setup.....its when you go in and start changing things and the blue light doesn't light up....and you forgot what u did.

 

Smiling...

 

A.

post #2729 of 3771
Playback from memory has it's uses. My Mac mini has 16GB installed so it's no problem for me. As far as I can gather it only pre-loads whatever is in your Now Playing list.
post #2730 of 3771
Would AGDR's Booster Board be of any use to my HD 650's?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphone Amps (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphone Amps (full-size) › O2 AMP + ODAC