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Audio-gd Digital Interface - Page 212

post #3166 of 3990
Quote:
Originally Posted by kr0gg View Post

good news to those who have Olimex usb isolator.

 

it works actually.

i was able to install drivers and use DI after i've connected a second power supply to the isolator. (Audio-gd's PSU on DI and a 7.5v PSU from my router on the Olimex isolator)

it was identified as a TE8022 device and i had to manually install the Audio-gd's drivers.

i guess that isolators didn't work without the PSU only because the te8802 chip + adum isolator eat more than the 500ma a usb port can provide

Maybe for you. Mine had chronic dropouts (multiple per second) when hooked up like this.

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post #3167 of 3990

I don't like anything touching the D+ and D- of any digital connection, no galvanic isolation, no chokes, no adapters etc.  I might consider galvanic isolation only for the V+ and ground with a Y-cable or something, but honestly with my system I only ever hear degradation with anything extra placed in the USB digital connection (lesson learnt again with the Vaunix hub)

post #3168 of 3990

Hi All,

I have a Digital Interface with PSU I bought over a year ago with the TE7702 chip. It is connected to a Reference One DAC with DSP-1 v5. I've been out of head-fi for a while and haven't kept up on the latest offerings in terms of the DI. I see now there are two different versions, one with and without a DSP3 and with I2S. I don't feel like I'm being robbed of any sonic detail or musicality with my current setup (I feel no need to upgrade), but would I benefit at all from getting a newer DI? Would be it redundant to have the DI up-sample the stream with the DSP3 if the DSP1 v5 will do so anyways? Is one DSP better then the other? Apologies if this has been posted elsewhere.

post #3169 of 3990

The new version uses SMD components which I think are better for digital. I would suggest upgrading the clocks, as I found that to make a substantial difference. YRMV. Regards

post #3170 of 3990
Quote:
Originally Posted by log0 View Post

Hi All,
I have a Digital Interface with PSU I bought over a year ago with the TE7702 chip. It is connected to a Reference One DAC with DSP-1 v5. I've been out of head-fi for a while and haven't kept up on the latest offerings in terms of the DI. I see now there are two different versions, one with and without a DSP3 and with I2S. I don't feel like I'm being robbed of any sonic detail or musicality with my current setup (I feel no need to upgrade), but would I benefit at all from getting a newer DI? Would be it redundant to have the DI up-sample the stream with the DSP3 if the DSP1 v5 will do so anyways? Is one DSP better then the other? Apologies if this has been posted elsewhere.

I find the latest version with the asynchronous TE8802 chip to sound significant better than the original version. I got mine with both TCXO upgrades. Better clocks usually mean better sound... My sistem is sounding better than ever!!
post #3171 of 3990

I hesitate between a clock .Tentlabs vcxo and the Audio Gd tcxo,can you give me your opinion ,please.

post #3172 of 3990

i have a 24.576 Tentlabs clock and it sounded better when upsampled to 96khz that the upgraded Audio-gd clock.

but i tested it only on the old DI.

on the new one - i've put the Tentlabs one and didn't care to compare

post #3173 of 3990
Hello
 
I have a DAC from audio gd Reference 5 no dsp version / 96k-max /.
I would like to purchase the DI + PSU. I see there are now new models. I understand that the V2 version is bad for my DAC. So I want buy the DI DSP ​​+ PSU.
I would like you to advise me what to choose in addition. Better clock? What? 12.24?
In what else I should invest? Shipping is expensive and niechciałbym pay 2x then.
 
Please help.
 
Regards
Art
post #3174 of 3990

Krogg,thanks for your advice,it's the XO or the VCXO  Tentlabs clock that you have.

post #3175 of 3990

Has anyone tried using their DI-DSP with an external battery supply? Could you recommend me which battery produces the best results for the DI-DSP?

 

Also, does an external battery improve the SQ over the DI-PSU?

post #3176 of 3990
Quote:
Originally Posted by DarknightDK View Post

Has anyone tried using their DI-DSP with an external battery supply? Could you recommend me which battery produces the best results for the DI-DSP?

 

Also, does an external battery improve the SQ over the DI-PSU?

 

i'm using this battery: http://www.ebay.com/itm/1-Sanyo-18650-2S2P-Li-ion-Battery-pack-7-4V-5-2Ah-4-Wheel-Alignment-W-PCM-Plug-/220969435546?pt=US_Rechargeable_Batteries&hash=item3372ce019a

there is an improvement in clarity over the audio-gd's PSU,but it is minor.

 

Quote:
Originally Posted by clsidxxl View Post

Krogg,thanks for your advice,it's the XO or the VCXO  Tentlabs clock that you have.

it's an XO.

post #3177 of 3990
Quote:
Originally Posted by kr0gg View Post

 

i'm using this battery: http://www.ebay.com/itm/1-Sanyo-18650-2S2P-Li-ion-Battery-pack-7-4V-5-2Ah-4-Wheel-Alignment-W-PCM-Plug-/220969435546?pt=US_Rechargeable_Batteries&hash=item3372ce019a

there is an improvement in clarity over the audio-gd's PSU,but it is minor.

 

 

Thanks! Exactly what I'm looking for. How long does the battery last with the DI-DSP on a single charge?

post #3178 of 3990

there's a circuit which automatically disables it when it drops its voltage due to low charge, so DI  never consumes  a full charge actually.

i guess it keeps my DI-DSP running for about 7 hours.

post #3179 of 3990

Krogg,I would like to change the 2 clocks,one for the 8802 is 12mhz and the upsampling is 24,576mhz,the voltage of 3,3 volt is good ? VCXO needs 5volt.


Edited by clsidxxl - 7/29/12 at 11:10am
post #3180 of 3990

you have to understand, that although TCXO and XO 5v clocks usually may work with 3.3v, but is not optimal.

also, i'm not sure if VCXO clocks can work with lower voltage.

 

i guess you'd better order upgraded clocks from Kingwa

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