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Objective2 Mini-Review and Discussion - Page 8

post #106 of 386
Quote:
Originally Posted by Anaxilus View Post

I disagree.  This is an oversimplification in analysis similar to saying digital audio is just ones and zeros.

 

Digital audio is ones and zeros. Once it is not, it is no longer digital.
 

Quote:
Originally Posted by Anaxilus View Post

I have yet to hear any perfect wire w/ gain amp or perfect DAC w/o signatures of their own.  


Can you also tell any two DACs apart in a level matched double-blind test ? Or even just A and C or D and F here ? The signatures of amplifiers and DACs are often (but not always) just the product of imagination and not sufficiently well controlled testing.

 

post #107 of 386
Quote:
Originally Posted by stv014 View Post


Can you also tell any two DACs apart in a level matched double-blind test ? Or even just A and C or D and F here ? The signatures of amplifiers and DACs are often (but not always) just the product of imagination and not sufficiently well controlled testing.

Not taking sides here but can we keep this thread in the amp section please?
post #108 of 386
Thread Starter 
Quote:
Originally Posted by Anaxilus View Post

Be that as it may, IME many devices are bass light via LO into any amp within reasonable accuracy.  I'm talking some stuff from $60 to thousands of dollars.  I've never heard those bass light sources 'fixed' w/o coloration from a colored amp.  So I'm not sure I buy into high z input fixing things based on my experiences w/ 3-4 devices that come to mind.

 

Plus I have more than the HD800 in my inventory before anybody tries to go down that route.


Which devices are you talking about?  A high Z amplifier input will certainly fix bass roll off caused by undersized coupling caps which is the usual cause as far as I know.  That's on reason I use an amp with my D2+.  There certainly can be other problems that won't be fixed by load impedance though.

post #109 of 386
Quote:
Originally Posted by Draygonn View Post


Not taking sides here but can we keep this thread in the amp section please?


+1

post #110 of 386
Quote:
Originally Posted by khaos974 View Post


Why did Shike's thread get closed?

 

 

Quote:
Originally Posted by maverickronin View Post


Do not question the moderators for their ways are mysterious and blunt.

 

i.e. no clue


For those curious:

 

Spam/flames, last post I reported got removed and then the thread was locked.  Now you know.

 

 

 

 

I'm debating building up a second O2 when the odac arrives and going for the dac/amp solution.  I can't wait to see how it turns out - the April 1st update almost got me :P

post #111 of 386
Quote:
Originally Posted by Shike View Post

Quote:
Originally Posted by khaos974 View Post


Why did Shike's thread get closed?

 

 

Quote:
Originally Posted by maverickronin View Post


Do not question the moderators for their ways are mysterious and blunt.

 

i.e. no clue


For those curious:

 

Spam/flames, last post I reported got removed and then the thread was locked.  Now you know.

 

 

 

 

I'm debating building up a second O2 when the odac arrives and going for the dac/amp solution.  I can't wait to see how it turns out - the April 1st update almost got me :P


Shike, I do NOT want to continue with you here to affect this thread. But please be honest and do not lie.

 

Let us be factual, both my post and your post were removed. So if there were attacks, they were from both sides (me and you), not just my attack against you. You have at least one attacking post against me that was removed, said post stating "Your test was bad. You should feel bad" (this is a word-by-word quote). Is this not a fact?

 

I did not spam.  

 

 

post #112 of 386

I suggest that we both close our mouth and chill out. Let us not get another thread locked. Mods closed that thread for a good reason.

Edit: But I reserve the right to defend myself.


Edited by zzffnn - 4/5/12 at 1:51pm
post #113 of 386
Quote:
Originally Posted by Shike View Post

<snip>

 

I'm debating building up a second O2 when the odac arrives and going for the dac/amp solution.  I can't wait to see how it turns out - the April 1st update almost got me :P


The problem I'm having with the odac is that if I put it in my O2, I loose the batteries and it no longer has portable capability.

 

post #114 of 386
Thread Starter 

I'm probably going to put my ODAC in its own enclosure.

post #115 of 386
I'm placing my ODAC into my Crack
post #116 of 386

how much are the odacs going to be?  Will JDS labs be making them like they make the objective 02 dose any one know?

 

 

post #117 of 386
Probably.
post #118 of 386

For those who haven't followed as closely, the ODAC is going to be closed-source and use surface-mount components, unlike the O2.  Details are summarized below.

 

 

Warning: Spoiler! (Click to show)

It's not a DIY project.  Those like JDSLabs will probably be buying ODACs from whoever manufactures a relatively large run of them, maybe to resell, and to put in assembled O2 and ODA.  I'm not even sure if JDSLabs would even have the facilities to assemble (and program?) these.  The given rationale here is that there are purportedly no good 24-bit USB audio chips that run on default OS UAC1 drivers that are available without OEM licensing, so there's no suitable DIY option if you want high performance.  To cover costs of anybody manufacturing any significant quantity of these, there needs to be a decent guarantee that hundreds of ODACs will be sold, to break even on the production run.  If the design was open sourced, different potential manufacturers would all be wary that somebody else would also be making them, and thus they'd be afraid that they couldn't sell enough units to break even.  Thus there's only going to be one entity making these things, at least for the first run.

 

As for the price, latest info says it is "still on track to hopefully come in under $100."

 

As for fitting it in the O2 enclosure, if you moved up from the B2-080 to the taller B3-080 there might be room for both the ODAC and batteries I think.  You would need to figure out your own front and back panels for that though.

post #119 of 386
Jeez, this thread is a ticking bomb.
I'm afeard now to comment on certain posts.
post #120 of 386

Quote:
Originally Posted by Anaxilus View Post

So it has begun:

 

 

Warning: Yada yada... (Click to show)

 

Since some people seem to like car analogies....

 

20 years ago, the greatest scientists, engineers and aerodynamicists designed the fastest Formula One cars ever to race the earth all based on pure science (with a touch of productive art in the aero dept).  20 years later the cars are even faster and better based on the same physics which has not changed.  Did everyone from 20 years ago suffer from headcolds which impaired their designs?  I think not.  These 'true' scientists and objectivists keep pushing and searching for milliseconds in their development of a relatively simple electronic, mechanical and chemical device.  The only thing that matters is the lap time which is easy to test yet things are still dynamic, change and evolve.

 

In audio, you have a biologically (aural and neural) and psychologically dynamic system interacting with environmental physics and mechanical devices.  This seems a more variable and dynamic problem simply because of the three aforementioned variables.  To me this seems a much more complex problem than a D-Scope can solve in its entirety.  If an 'Objectivist' can claim that we know all there is to know about perfect audio reproduction, let him throw a tarp over Yo-Yo Ma and DBT his Cello versus whatever best audio reproduction system he can assemble and prove it on Youtube.  I'll even throw in a sweetner if you put your own money on the line. 

 

 


 

20 years ago carbon fiber was just being mastered and CAD wasn't much of a thing.  You're also comparing someone with the somewhat nebulous goal  of "going faster" to building a device with a well known and easily definable ideal performance.  

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