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Re: MQN
Posted: Tue Jun 17, 2014 1:50 pm
by nige2000
sbgk wrote:must admit I use an unmodified usb printer cable, maybe time for a change.
with non usb implementations you have options for memory mapping between source and device using wdm ks.
http://www.ebay.co.uk/itm/1m-8-Core-Pur ... 2ec983fcd7
if you dont need much lenght <300mm i can post you one of my spares/previous attempts
Re: MQN
Posted: Tue Jun 17, 2014 2:22 pm
by jrling
sbgk wrote:
with non usb implementations you have options for memory mapping between source and device using wdm ks.
That would be good [with MQn I mean!]
Re: MQN
Posted: Tue Jun 17, 2014 2:44 pm
by jesuscheung
nige2000 wrote:Hi Johnathon
What way do pcie soundcards
Would have thought if they were given dedicated clean power supplies they would stand a better chance of having better sq than usb dacs
everyone is doing
usb pcie card -> usb dac
why not just plugin the dac into the pcie already
think usb cable requires audio stream to be repackaged as usb stream
firewire takes the audio stream as it is
again. don't understand why firewire is getting obsoleted either haha
correct me if i am wrong.
Re: MQN
Posted: Tue Jun 17, 2014 2:58 pm
by Aleg
2channelaudio wrote:Interesting you raise this.
On the weekend I will be putting my Yellowtec puc2 lite, up against a Juli@ ESI PCI to spdif card.
As I have been looking for a PC spdif output solution that works in windows and linux.
For those that don't know the Yellowtec puc2 lite is a fantastic (pro grade) usb to aes converter, which out preformed the highly respected audiophilleo 1, in two systems I tested the unit in.
After I heard the yellowtec I brought one and sold my audiophilleo 1...
I'll keep you informed.
My gut feel is the ESI Juli@ will sound very good.
2CA
I would never expect a PCIe board connected to a mobo and located inside a chassis to outperform an asynchronous outboard USB.
Having the SPDIF clock on a board fed by PCIe buspower is imo likely to have interference from power fluctuations, ground disturbances and EMI/RFI pollution.
I have a Juli@ but never considered it to be better than any outboard USB I had.
Am curious to you findings.
Cheers
Aleg
Re: MQN
Posted: Tue Jun 17, 2014 3:03 pm
by jesuscheung
Aleg wrote:2channelaudio wrote:Interesting you raise this.
On the weekend I will be putting my Yellowtec puc2 lite, up against a Juli@ ESI PCI to spdif card.
As I have been looking for a PC spdif output solution that works in windows and linux.
For those that don't know the Yellowtec puc2 lite is a fantastic (pro grade) usb to aes converter, which out preformed the highly respected audiophilleo 1, in two systems I tested the unit in.
After I heard the yellowtec I brought one and sold my audiophilleo 1...
I'll keep you informed.
My gut feel is the ESI Juli@ will sound very good.
2CA
I would never expect a PCIe board connected to a mobo and located inside a chassis to outperform an asynchronous outboard USB.
Having the SPDIF clock on a board fed by PCIe buspower is imo likely to have interference from power fluctuations, ground disturbances and EMI/RFI pollution.
I have a Juli@ but never considered it to be better than any outboard USB I had.
Am curious to you findings.
Cheers
Aleg
this is exactly i don't understand.
don't you think your pcie USB card is getting interference which located exactly inside the chassis ?!
the audio stream is still getting through the pcie slot regardless.
just plugin the dac into the pcie already
Re: MQN
Posted: Tue Jun 17, 2014 3:09 pm
by Aleg
jesuscheung wrote:Aleg wrote:2channelaudio wrote:Interesting you raise this.
On the weekend I will be putting my Yellowtec puc2 lite, up against a Juli@ ESI PCI to spdif card.
As I have been looking for a PC spdif output solution that works in windows and linux.
For those that don't know the Yellowtec puc2 lite is a fantastic (pro grade) usb to aes converter, which out preformed the highly respected audiophilleo 1, in two systems I tested the unit in.
After I heard the yellowtec I brought one and sold my audiophilleo 1...
I'll keep you informed.
My gut feel is the ESI Juli@ will sound very good.
2CA
I would never expect a PCIe board connected to a mobo and located inside a chassis to outperform an asynchronous outboard USB.
Having the SPDIF clock on a board fed by PCIe buspower is imo likely to have interference from power fluctuations, ground disturbances and EMI/RFI pollution.
I have a Juli@ but never considered it to be better than any outboard USB I had.
Am curious to you findings.
Cheers
Aleg
this is exactly i don't understand.
don't you think your pcie USB card is getting interference which located exactly inside the chassis ?!
the audio stream is still getting through the pcie slot regardless.
just plugin the dac into the pcie already
No, because the clock that creates the spdif signal is located outside and, in the case of Sonjcweld, uses extremely well regulated power.
EMI/RFI shielding does improve an internal USB card, but it is spdif generating clock that needs to be outside and isolated.
Re: MQN
Posted: Tue Jun 17, 2014 3:18 pm
by nige2000
Think its to do with marketing most audiophiles just want plug and play
They don't wanna know about emi/rfi, ground loops, super regulators seperate power supplies, signal reclockers
Cause all this and more becomes an obstacle with soundcards
I think it's very possible to do,
but who's going to buy it?
Re: MQN
Posted: Tue Jun 17, 2014 3:19 pm
by jesuscheung
Aleg wrote:
...
No, because the clock that creates the spdif signal is located outside and, in the case of Sonjcweld, uses extremely well regulated power.
makes sense....
still not convinced with the design. think the engineers can do a better job
Re: MQN
Posted: Tue Jun 17, 2014 3:23 pm
by jesuscheung
until our DACs become a bottleneck, none of these matter, at least to me anyway.
clean power > DAC
Re: MQN
Posted: Tue Jun 17, 2014 3:25 pm
by John Dot
jrling wrote:sbgk wrote:
with non usb implementations you have options for memory mapping between source and device using wdm ks.
That would be good [with MQn I mean!]
I used this OCC 7N Cryo wire to make my usb cable:
http://forzaaudioworks.com/en/product.php?id_product=22 and some gold plated plugs. There is huge difference between standard printer cable.