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Audio-gd Digital Interface - Page 182

post #2716 of 3993

Hi again,

 

The resistors are for free, you have to just ask for them when placing the order.

 

 

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post #2717 of 3993

IMHO, it is a must to use / at least try to use battery to power your DI. The sound are clearer and crispy, more detailed. It is a very noticeable difference.

 

Based on my experience, it is a little tricky to A/B test the USB powered and battery powered. There were a few times the DI did not output any sound or output crack sound. I was very afraid that I crashed my DI. Luckily, there should be some protection circuits inside. If you experience such problems, just unplug everything and wait for 10 seconds or so.

 

Accroding to my experience and Kingwa's advice, I come up with these procedures:

 

How to power on using Battery:

1. Unplug every cable

2. Turn the switch to USB.

3. Plug the battery to the DI

4. Turn the switch to DC IN

5. Plug the USB cable and enjoy

 

 

How to power off using Battery:

1. Stop the source and unplug the USB cable

2. Turn the switch to USB

3. Unplug the battery from the DI

 

It is better to unplug every cable and wait for 10 seconds before you change the power source - Either from USB powered to Battery powered / from Battery powered to USB powered.

 

post #2718 of 3993

Where did you source the battery ?

 

On the new DI I see there is a DSP version and one without DSP

 

 

post #2719 of 3993

I tried TWO 3.7V 18650 lithium battery for torch and 7.4V lithium polymer battery for R.C. helichopter. Both work okay although I could not tell you if there was a difference.

 

I think you could try shops for R.C cars / ships / helichopters.

 

PLEASE MAKE SURE THE POLARITY IS RIGHT!!


Edited by fourwed - 4/18/12 at 3:13am
post #2720 of 3993

So the use of a battery is preferred over the DI-PSU by Audio Gd?

 

Also, is it recommended to upgrade the TCXO clocks in the DI? Could someone explain to me what the difference is with the clock upgrade?

post #2721 of 3993

im pretty sure the upgraded clock only helps when your upsampling, but i may be wrong.

I just ordered a V21 to replace my original di and i opted for the TXCO even though i probably wont use upsampleing.

post #2722 of 3993

Clock is for upsampling only and I felt it sounded better with the TXCO and upsampled vs the standard clock- everything just a little more focused.

post #2723 of 3993

Anyone have a web link or specs for a lithium battery for the DI? I am always for cheap tweaks =).

post #2724 of 3993

 

Quote:
Originally Posted by BoyNamedSue View Post

Anyone have a web link or specs for a lithium battery for the DI? I am always for cheap tweaks =).

 


its on this page, just scroll down.

http://www.audio-gd.com/Pro/dac/DIv2/DIv2EN.htm

post #2725 of 3993

 

Quote:
Originally Posted by darren700 View Post

im pretty sure the upgraded clock only helps when your upsampling, but i may be wrong.

I just ordered a V21 to replace my original di and i opted for the TXCO even though i probably wont use upsampleing.

 

According to the product page the DI-DSP has one clock for upsampling (24.576mhz) and one clock for usb (12mhz). The V21 has only the 12mhz and doesn't have the upsampling functionality because that is a feature of the DSP3.1. So, you will be benefiting from the upgraded clock.

 

I emailed them regarding the DSP and whether it improves the USB input or not, and Kingwa said it does. I was going to get the V21 to replace my DI but decided to get the DI-DSP with 12mhz upgrade even though I don't need the upsampling/spdif input. Can't wait to get it.
 


Edited by somestranger26 - 4/19/12 at 5:28am
post #2726 of 3993

i've asked them the same question about the 12mhz clock.

imho, it doesn't affect sound quality because it is related to the TE8802 USB controller.

on the other side - the te8802 chip is pretty new, seen only in a TEAC dac and one taiwanese DAC, and no one really knows yet much info about it.

 

anyway - i'm going for the DSP version too because i like the current DI's upsamling sound. it really tightens things up.

 

i've already ordered a Tentlabs clock too. didn't want to buy it earlier because i considered it a waste of money which would better be spent on an async converter. Now, when these guys release an async DI, i think that the right moment has come :)

post #2727 of 3993

I'm in the market for a USBtoSPDIF converter.  I have looked at other options: V-Link II, Hiface2.  They both will cost around $200 with shipping.  It seems like the DI is the best price/performance value.  I will most likely get the DI-V21.  I'm hesitant to add another $75 for the PSU though; maybe I will just go the DC power route.

post #2728 of 3993

 

Quote:
Originally Posted by aural bliss View Post

I'm in the market for a USBtoSPDIF converter.  I have looked at other options: V-Link II, Hiface2.  They both will cost around $200 with shipping.  It seems like the DI is the best price/performance value.  I will most likely get the DI-V21.  I'm hesitant to add another $75 for the PSU though; maybe I will just go the DC power route.

 

The PSU is minimal improvement IMO from experience. Money would be better spent on the DSP version rather than the PSU, again, IMO.


Edited by tim3320070 - 4/19/12 at 8:06am
post #2729 of 3993

The $108 DI-V21 or the $198 DI-DSP.  This is the question.  Too bad nobody has experience to comment on them yet.

post #2730 of 3993

some users might not like the effect of DI upsampling, but i highly recommend it.

it makes scene-positioning much more precise and adds body to vocals.

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