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O2 AMP + ODAC - Page 217

post #3241 of 3784
Quote:
Originally Posted by JacobLee89 View Post
 

 

EE would help troubleshoot mistakes and faults. Soldering skills however can be seen as a completely separate skill, though both seem to compliment each other very well.

 

I for one am a hobbyist whom picked up soldering but know next to nothing about electronics. Luckily I am as thorough as I am patient when following assembly instructions.

 

I still can't find a good reason yet to try out the ODA, since my O2 already has the mod board. Perhaps I'll give the ODA a shot once it reaches the next few revisions and when I find myself with "real" disposable income.

 

Soldering is what worries me. Every time I've picked up a hot soldering iron, I keep worrying i'm going to burn myself. I'm thinking of trying to assemble my own O2 at some point, after a little practice. Maybe on a CMoy or something like that.

 

And, mod board?

Quote:
Originally Posted by Xenophon View Post
 

The ODA is definitely not a starter project, certainly if you've never soldered before.  Parts are very small and if you don't know what you're doing and have no equipment, debugging will be virtually impossible. There are many other projects out there that will give you a good dac/amp with power to spare and are easier builds due to less parts and larger components/spacious boards.  Take a look on diyaudio.

 

Oh I can tell. Just looking at the O2 is worrying enough given my newbie status as it pertains to soldering.

 

Quote:
Originally Posted by HaVoC-28 View Post
 

 

Your current cans will not improve with an ODA , so you don't need one unless your planing in buying some HE-6 :p

 

Oh I know I don't need one but the variable gain settings and bass boost circuit (what can I say? I'm a basshead) by themselves are enough to pique my interest. And who knows? I've been bitten by the planar bug with the HE-400 so someday I might end up getting an HE-6, if only just to see what the fuss is about. :D

post #3242 of 3784

The ODA has more advantages over the O2 than just more current capacity for HE6 type cans.....

 

You can have 2 sets of cans attached at the same time due to this increased current capacity... and quickly listen to one then another.

 

You can have 2 dads connected at the same time and switch between them to make dad "testing" or "listening" more efficient....

 

There are 4 selectable gains.

 

The power switch is on the back as many desired.

 

The AC power jack is on the back as many desired.

 

There is a pre-amp option that can be wired up in several ways if needed.

 

There is a clipping led indicator to actually tell you if your clipping at various gain settings.

 

There are (2) Power rail leds to indicate power is on and available for the +/- supplies.

 

I have my ODA connected to my Onkyo AVR to drive a set of speakers for gaming.

 

Anytime I can turn this off and pick up my connected cans and listen to music via JRiver...

 

Not only does the ODA have similar and in some cases better specs its much more versatile to me in my usage scenario.

 

Yes is will not make your headphones sound any better relatively but its current capacity is a plus and you might need that one day if you go the HE6 route.

 

The ODA doesn't make the O2 bad it just takes it to the desktop level.

 

But if u can't solder get someone to build you one.

 

Alex

post #3243 of 3784

Do you have any pictures of what a completed ODA would look like?

post #3244 of 3784
Quote:
Originally Posted by TheGame21x View Post
 

 

Soldering is what worries me. Every time I've picked up a hot soldering iron, I keep worrying i'm going to burn myself. I'm thinking of trying to assemble my own O2 at some point, after a little practice. Maybe on a CMoy or something like that.

 

And, mod board?

 

 

With soldering getting precision tweezers and the "helping hands" tool will help keep things in place, and out of burning range for your fingers. Solder flux is almost a must for anyone learning to surface mount.

 

As for how to's, youtube has plenty of good videos. The how to's with the most views are generally very good as far as I've seen. That's where I've learnt to surface mount.

 

As for the "mod board", I was referring to the output booster board by ADGR. The mod itself may or may not improve the already decent performance of the O2, but it is certainly much easier to do than the ODA by the looks of it.

Quote:
Originally Posted by adydula View Post
 

 

The ODA doesn't make the O2 bad it just takes it to the desktop level.

 

Ever since I've modded the O2, it's almost constantly connected thanks to the increased power drain. The ODA is getting increasingly tempting. Tinker fingers are getting excited over the thought.

post #3245 of 3784

Pictures... take a look here.....I started this ODA thread some time back.... scroll down etch and there are lots of pix from my DIY build experience.

 

http://www.head-fi.org/t/719611/objective-desktop-amp-a-version-from-agdr

 

Also look over at DIYAUDIO.COM under headphone systems and the ODA thread, its 50+ pages long now.

 

The ODA is now moving to version 2.1, its been built by AGDR and is under burn in testing at the moment.

 

Several people have PC boards reserved for this build level.

 

Alex

post #3246 of 3784
I'm not comfortable with recommending ANY setup as good for the HE-6 as long as I haven't tried it myself. I know the power/spl numbers the ODA should be able to reach with it but suffice it to say that I've heard the 6 from amps that could provide the same or better and it sounded like crap. And let's not forget the heating issue that might pop up. I agree that it's a great effort but it has issues that make it unsuitable for mass production.
post #3247 of 3784

I am afraid your confused...there is no heating issue with the ODA.

 

The booster board was looked at by JDS awhile back this may be what your thinking about.

 

I have thermocoupled measured the ODA for several days, if you want HOT try a Schitt Asgard.....that's HOT.

 

Alex


Edited by adydula - 8/1/14 at 5:31am
post #3248 of 3784
Quote:
Originally Posted by Poimandres View Post

glad to hear you are enjoying it. I decided to go with jds labs variant even though mayflower is literally 1/2 hour from me.

Hi Poimandres.

If you don't mind me asking...why didn't you go with Mayflower?

Thx
post #3249 of 3784

I really wanted to go with a local vendor however I did not want to pay NYS taxes, I also ended up returning the O2/ODAC and decided to keep the Fiio X5.

post #3250 of 3784
Quote:
Originally Posted by Poimandres View Post

I really wanted to go with a local vendor however I did not want to pay NYS taxes, I also ended up returning the O2/ODAC and decided to keep the Fiio X5.

Just curious, is there a way to go with a local vendor without paying local taxes?
post #3251 of 3784

Unfortunately not.  Also I wasn't sure if I was going to keep it so I went with JDS.


Edited by Poimandres - 8/3/14 at 5:43am
post #3252 of 3784
Quote:
Originally Posted by Poimandres View Post

Unfortunately not.  Also I wasn't sure if I was going to keep it so I went with JDS.

Bizarre. Do these local taxes apply to everything you buy locally?
post #3253 of 3784

OK, I get the sales tax part...that's your choice. 

 

I think that their return policies are the same.

 

Since my parents live near Mayflower I will consider them and maybe look to see if sales tax and shipping balance out if I pick up an item...

 

Thx

post #3254 of 3784
Quote:
Originally Posted by Zorrofox View Post


Bizarre. Do these local taxes apply to everything you buy locally?


How does that even apply?  What is bizarre is your interest in this and your candor, it would be nice if you would stop trolling.  However as taxed as our country is it is certainly not as taxed as you brits or the rest of Europe.


Edited by Poimandres - 8/3/14 at 6:35am
post #3255 of 3784
Quote:
Originally Posted by Poimandres View Post


How does that even apply?  What is bizarre is your interest in this and your candor, it would be nice if you would stop trolling.  However as taxed as our country is it is certainly not as taxed as you brits or the rest of Europe.

There's no need to be defensive mate. I was merely interested that given where you live you'd not prefer to pay a local tax as opposed to whatever tax is applicable where JDS operates. I clearly don't understand the tax system in your country.

Anyway, I'll say no more & apologise for offending you.
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