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Brief Odac impressions - Page 78

post #1156 of 1938

Great, it's just about the right length for me setup.

post #1157 of 1938
Ordered my odac from jdslabs, reading this thread has got me pretty excited about it.
I've currently got a native instruments komplete audio 6 which apparently measures quite well but I've been using its headphone out into my o2.
I got the RCA version aswell so I'll test it with my rokit 5's (I really need some new monitors)
I'll give my impressions when I get it. I've got the k702's and some krk kns8400's which are both quite bright cans so it'll be interesting to see if I can find this 'shrill brightness' which I've read about.
post #1158 of 1938

I'm thinking of trying out the RCA-output ODAC sometime next year (when I'll have funds); problem is I'm using an iPad2 as my source unit. Anyone know where to get DIY parts for USB cables, such as plugs, etc*? I'm thinking of having a custom Y-cable USB cable made - with the ODAC input plug on one end going out to a 0.5m length USB-A on one side (for the iPad CCK) carrying the signal conductors and either a longer one to go to a USB PSU/port on my surge protector, or a short one with a micro-B into an Energizer (or cheaper brand) 2700mAh battery pack. Or a mini-USB male to two female (any size) USB plug Y-cables**

 

Would that even work? Thing is I could either use a powered hub*** or a DAC with its own PSU that also powers the USB receiver chip**** but these have their owndisadvantages; plus based on reviews it sounds like the ODAC is exactly the sound I'll like.

 

Or  should I  just wire the batteries or a PSU to the DIY ODAC?

 

 

 

*no need for the conductors, I can chop up a few over cables or something like that

**the only ones I see have one mini-USB on one end, then the USB-A end has another USB-A attached to it - to get more power out from a computer into a portable HDD, the wiring of which I'm not sure if hooking up the power USB-A will be safe for the iPad or enough for the ODAC if the iPad sucks up that current

***which by some reports,some iOS or Android devices sometimes don't work with some of these - return policies in my country only work for defective units
****unlike the Bursons, which has a solid PSU but it's not powering the USB section


Edited by ProtegeManiac - 11/22/12 at 1:02am
post #1159 of 1938
Quote:
Originally Posted by ProtegeManiac View Post

[...]

Anyone know where to get DIY parts for USB cables, such as plugs, etc?

[...]

 

Some posters in the "DIY Cable Gallery!!" forum (http://www.head-fi.org/t/71148/diy-cable-gallery) have built their own USB (etc.) cables and know of sources. I don't know anything about them personally.

post #1160 of 1938
Quote:
Originally Posted by HamilcarBarca View Post

 

Some posters in the "DIY Cable Gallery!!" forum (http://www.head-fi.org/t/71148/diy-cable-gallery) have built their own USB (etc.) cables and know of sources. I don't know anything about them personally.


Cheap connectors can be found on ebay.

A simple (short) DIY usb cable with separate input for power would be the simplest solution to replace power of any usb dac that uses usb power.

The real problem is finding a 5V rechargeable battery pack. Or at lest I could not find one easily available so I'm using 3x1.5V for ~ 4.5 V output without any problems for a small usb dac (NOT ODAC).

post #1161 of 1938
Quote:
Originally Posted by HamilcarBarca View Post

 

Some posters in the "DIY Cable Gallery!!" forum (http://www.head-fi.org/t/71148/diy-cable-gallery) have built their own USB (etc.) cables and know of sources. I don't know anything about them personally.

 

Thanks! I forgot about that thread; going through it now.

 

 

Quote:
Originally Posted by ceausuc View Post


Cheap connectors can be found on ebay.

A simple (short) DIY usb cable with separate input for power would be the simplest solution to replace power of any usb dac that uses usb power.

The real problem is finding a 5V rechargeable battery pack. Or at lest I could not find one easily available so I'm using 3x1.5V for ~ 4.5 V output without any problems for a small usb dac (NOT ODAC).

 

Thanks! I'll look at eBay; i was thinking there might be something like PartsExpress, I was browsing there before I posted here. As for the battery pack, aren't the mobile rechargeable powerbanks (usually intended for tablets and smartphones) like this capable of 5V? (And is 1amp enough?) I just sort of thought they would be since they're USB standard; plus I can get one in just about any electronics store and charge it easily.

post #1162 of 1938

Hi guys !

I'm really interested by the RCA output ODAC but I have a few questions. Here is my situation :
- Currently using the AKG 701 with the Heed Canamp AMP on my computer with the Asus Xonar essence ST doing the DAC part.
- Listening music on my computer.

Will I see any benefits/improvements with this DAC compared to the Asus Xonar Essence ST?

Thanks for the help guys!

post #1163 of 1938

I should be getting my odac next week, but in the meantime i've been thinking a lot.

 

The odac doesnt have any indication as to what sampling rate or bit depth it's processing. My old dac the fiio E17 always displayed this info so i always knew if i had my computer and foobar set up correctly. I've read here previously that since the odac supports 24/96, we should set up our audio player to use WASAPI and set up the Playback Devices tab like in the picture below. 

 

 

700

 

But when this was done with the E17, it would constantly display the selected bit depth and sampling rate (24/96) even when playing a 16/44.1 file. So isn't it up-sampling then?

 

What i found to work best was to set the playback devices option to 16/44.1, but make sure to tick all options under the supported formats screen:

 

 

Having it set up like this, when playing a 16/44.1 song in foobar, it would display just that on the E17, and playing a 24/96 song would also display correctly.

 

Would this not be the correct way to set up the ODAC with your Windows PC? 

post #1164 of 1938

Hey just curious here. I've heard great things about O2 +odac+HD600 combo. well, does anyone have any experience odac+matrix m-stage+HD600. Just curious. thanks guys.

post #1165 of 1938
Quote:
Originally Posted by SupR-Pinou View Post


Will I see any benefits/improvements with this DAC compared to the Asus Xonar Essence ST?

 

Considering the K701 reflects well enough any changes in the components upstream from it, and people compare the ODAC to $1,000 CDPs where you don't hear that about the Essence ST, most likely yes.

post #1166 of 1938
Quote:
Originally Posted by ProtegeManiac View Post

 

Considering the K701 reflects well enough any changes in the components upstream from it, and people compare the ODAC to $1,000 CDPs where you don't hear that about the Essence ST, most likely yes.

the essence is a good DAC albeit coloured, but it needs different opamps, and an external amp. 

 

And well AKG in general reflects better components. The k242HD is the same.

post #1167 of 1938
Quote:
Originally Posted by WiR3D View Post

the essence is a good DAC albeit coloured...

 

Now that you mention it, I'll add to my previous post: most likely there will be an audible difference, but as for whether the listener will like it is another matter.

post #1168 of 1938
Quote:
Originally Posted by thecansmancan View Post

Hey just curious here. I've heard great things about O2 +odac+HD600 combo. well, does anyone have any experience odac+matrix m-stage+HD600. Just curious. thanks guys.

The M-stage I had was very, very similar to the O2. I couldn't tell the two apart, so I sold off the one that was more bulky and more expensive and kept the amp with published measurements to prove it's performance.

Just my experience with the two :)

post #1169 of 1938
Quote:
Originally Posted by ProtegeManiac View Post

 

battery pack, aren't the mobile rechargeable powerbanks (usually intended for tablets and smartphones) like this capable of 5V? (And is 1amp enough?) I just sort of thought they would be since they're USB standard; plus I can get one in just about any electronics store and charge it easily.

 

I also found the phone powerbanks like the one you linked. These do output 5V but I don't like the fact that I can't see what it's inside the pretty box. Could be a 6/7V battery that gets its 5V output with a noisy regulator. I just want a normal 5V rechargeable battery :)

In the mean time 3 eneloops in series do their job just fine:)

 

1A is more than enough. Computer USB ports output 0.5A normally.

post #1170 of 1938

O2 cannot power k702, yea I wish i could but I dont feel good lying to myself. However pair O2 with Er4s, you will love it :)

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