Head-Fi.org › Forums › Equipment Forums › Dedicated Source Components › Audio-gd Digital Interface
New Posts  All Forums:Forum Nav:

Audio-gd Digital Interface - Page 215

post #3211 of 4010
Quote:
Originally Posted by veritas aurum View Post

I use the DI between a TASCAM cd200 and an Anedio D2.  I have upgraded both clocks both have never used the upsampling. I told you I was a puriist! Regards


hah! ok.. I chose just the DI-V2-S with upgraded clock in the end, after deciding probably just gonna keep my music library with the variety of sample rates to pass through as they are and not kept to one upsampled rate...

 

Quote:
Originally Posted by DarknightDK View Post

Wow. I just switched the power supply of the DI-DSP from USB to an external Li-Ion battery and what a difference it made. The sound became more focused - better defined highs and better transparency to the music. Definitely an improvement in clarity, like a veil had been lifted. Cymbals sound more realistic with a bite to them and vocals are more upfront and natural. I highly recommend using an external power supply for the DI-DSP. The difference is not subtile and you will notice it right away.

 

may I know what battery u using? the same as recommended in the past pages?

Gear mentioned in this thread:

post #3212 of 4010
Quote:
Originally Posted by icecap View Post

may I know what battery u using? the same as recommended in the past pages?

 

Yep, That's the one.

post #3213 of 4010

i guess Kingwa should start asking his sales % from the ebay seller for creating a new market for him :)

post #3214 of 4010
Quote:
Originally Posted by kr0gg View Post

i guess Kingwa should start asking his sales % from the ebay seller for creating a new market for him smily_headphones1.gif

Kingwa should start selling external batteries as optional accessories for the DI
post #3215 of 4010
Quote:
Originally Posted by DarknightDK View Post


Kingwa should start selling external batteries as optional accessories for the DI

 

That goes against his philosophy.  He has stated he believes well-designed AC power supplies are better.

 

I'm no engineer but I always thought DC/batteries was the cleanest method of supplying power.

post #3216 of 4010

It all comes down to implementation. If one uses AC power or USB power then just make sure you filter that noise out in your design.

post #3217 of 4010
Quote:
Originally Posted by cky8 View Post

It all comes down to implementation. If one uses AC power or USB power then just make sure you filter that noise out in your design.

Am I right to say that the built-in 3 groups (or 5 groups for DI-DSP) of Class A PSUs helps in filtering out a certain level of noise from whichever power is supplied through DC?

post #3218 of 4010
Quote:
Originally Posted by IPodPJ View Post

 

That goes against his philosophy.  He has stated he believes well-designed AC power supplies are better.

 

I'm no engineer but I always thought DC/batteries was the cleanest method of supplying power.

 

Batteries are great but the problem is voltage changes as the battery discharges - often too high at first then settling to fairly even but slow downward trend eg: http://www.batteryspace.com/LiFePO4-Prismatic-Box-Battery-12.8V-20Ah-256Wh-10C-rate-without-PCM.aspx

I'm still not sure whether it is better to use direct batter or to use a linear voltage regulator for the battery.  Oh another thing is AC supply is less likely to spontaneously combust blink.gif

I don't mean to knock batteries as I just paid $500 for the battery supply for the Audiophilleo.

post #3219 of 4010

I am so glad that more and more people agree with my lithium battery tweak. (Please do correct me if I am not the first one posted here)

post #3220 of 4010
Quote:
Originally Posted by IPodPJ View Post

 

That goes against his philosophy.  He has stated he believes well-designed AC power supplies are better.

 

I'm no engineer but I always thought DC/batteries was the cleanest method of supplying power.

He would if EMS / DHL allowed him to ship batteries. "We only can find the battery in Chinese market, but both DHL and EMS have limit shipping the battery." - Kingwa

 

Quote:
Originally Posted by fourwed View Post

I am so glad that more and more people agree with my lithium battery tweak. (Please do correct me if I am not the first one posted here)

You were not the first ;). A few of us had them with the original DI with which it made a much bigger difference.


Edited by somestranger26 - 8/10/12 at 1:00pm
post #3221 of 4010
Quote:
Originally Posted by fourwed View Post

I am so glad that more and more people agree with my lithium battery tweak. (Please do correct me if I am not the first one posted here)

You were not the first ;). A few of us had them with the original DI with which it made a much bigger difference.

 

Quote:
Originally Posted by fourwed View Post

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.

 

 

 

I proposed this back from 04/12 with my DI-V1 and we had some discussions about these. :)

 

I still think the lithium battery improves my DI-V2-S but not that substantial.

post #3222 of 4010
Quote:
Originally Posted by fourwed View Post

 

I proposed this back from 04/12 with my DI-V1 and we had some discussions about these. :)

 

I still think the lithium battery improves my DI-V2-S but not that substantial.

 

Oh my bad, I forgot you posted back then. I thought you just got the battery. The battery seems popular, but how many have tried direct-connecting the BNC/RCA to their DAC? I thought that made as much difference as the battery did.
post #3223 of 4010

Still waiting for the new drivers...

post #3224 of 4010
Quote:
Originally Posted by somestranger26 View Post

 

Oh my bad, I forgot you posted back then. I thought you just got the battery. The battery seems popular, but how many have tried direct-connecting the BNC/RCA to their DAC? I thought that made as much difference as the battery did.

 

I totally agree with you. This is a cheap and effective tweak. Just remember to get a 75ohm connector if possible or there should be distortion.

post #3225 of 4010
Quote:
Originally Posted by somestranger26 View Post

 

Oh my bad, I forgot you posted back then. I thought you just got the battery. The battery seems popular, but how many have tried direct-connecting the BNC/RCA to their DAC? I thought that made as much difference as the battery did.


just received my DI-V2-S today! surely it gives out a very well separated layerings of instruments that is really a joy to listen to!! the possibilities to tweak this DI is really huge.. I realised coaxial cable connections between DI and my DAC gives a bassy and forward-vocal flavours.. direct connection with a BNC-RCA connector was, wow, opening the soundstage with a greater depth surrounding my rear.. bass was reduced slightly but tighter which I have compensation from DT990 Pro... however, vocals, too, was recessed that bit, something I would enjoy more from the cable connection.. that I guess I will compensate from a better tube of my 12au7 headphone amp.. but oh well, some more burn-in time needed to make a more accurate assessments... :)

 

Quote:
Originally Posted by fourwed View Post

 

I totally agree with you. This is a cheap and effective tweak. Just remember to get a 75ohm connector if possible or there should be distortion.

 

may I know if you do know of any link for such? I don't know at all if mine was 75ohm or not... ebay is selling so many types but with no mentioning of the impedance...

 

and one more question, has anyone tried powering DI with a DC wall-wart adapter? any takes on that? thanks!


Edited by icecap - 8/12/12 at 8:37am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Dedicated Source Components

Gear mentioned in this thread:

Head-Fi.org › Forums › Equipment Forums › Dedicated Source Components › Audio-gd Digital Interface