Disturbance comes from the digital part, the differential input of opamp can suppress, now you use only one output without supression..
It is possible, and that would be the least painful and easily resolved, that "bump-bump" have software origin..player enters the digital interference when changing song..
Anyhow, the revolution has begun, opamp never again!
It is possible, and that would be the least painful and easily resolved, that "bump-bump" have software origin..player enters the digital interference when changing song..
Anyhow, the revolution has begun, opamp never again!
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Hi I am new to this site and new to DIY electronics so still learning.
I have just ordered a DA-4399 dac pcb from eBay.
It won't turn up for about 3 weeks so I'm not sure what it even looks like yet.
It's got Dual Mono AK4399.
I am planning to make tube output as per lampizator site with tube power suply for the tube section.
I am using 2 x 6N6p tubes for the output section and 2x 6u5c for the tubed power suply.
I have got most of the parts for the tube output stage already.
I just need to order my case and chokes from bluebell audio when I get the money together.
This started out as a project using a behringer src2496 as per lampizator site but decided to go for this instead.
Has anyone else tried this pcb and where would I be best to take my output from.
I am guessing as close to the dac chip as possible as with the behringer from lampizator site.
I am going to be doing dual mono designe so would I use the + L & - R output from each dac chip or run series parallel to get dual mono outputs from dac chips ?
Basically I want a L+ & L- signal & a R+ R- signal for the tubes direct out from the dac.
I won't need ant caps or resistors because I am using a small cap at the tube input for this.
I take it because I am not using tube output I won't need the 15v transformer.
I have just ordered a DA-4399 dac pcb from eBay.
It won't turn up for about 3 weeks so I'm not sure what it even looks like yet.
It's got Dual Mono AK4399.
I am planning to make tube output as per lampizator site with tube power suply for the tube section.
I am using 2 x 6N6p tubes for the output section and 2x 6u5c for the tubed power suply.
I have got most of the parts for the tube output stage already.
I just need to order my case and chokes from bluebell audio when I get the money together.
This started out as a project using a behringer src2496 as per lampizator site but decided to go for this instead.
Has anyone else tried this pcb and where would I be best to take my output from.
I am guessing as close to the dac chip as possible as with the behringer from lampizator site.
I am going to be doing dual mono designe so would I use the + L & - R output from each dac chip or run series parallel to get dual mono outputs from dac chips ?
Basically I want a L+ & L- signal & a R+ R- signal for the tubes direct out from the dac.
I won't need ant caps or resistors because I am using a small cap at the tube input for this.
I take it because I am not using tube output I won't need the 15v transformer.
Got a circuit board today ..
Besides false RCA and opamps I have much bigger problem ..
I tried several drivers and none of them work .. note that from before I have XMOS usb-spdif converter from the same kitchen that works fine ..
I tried several drivers, install and uninstall, no results .. if the problem can be on the computer, or simply is defective device .. how could I be certain..
Besides false RCA and opamps I have much bigger problem ..
I tried several drivers and none of them work .. note that from before I have XMOS usb-spdif converter from the same kitchen that works fine ..
I tried several drivers, install and uninstall, no results .. if the problem can be on the computer, or simply is defective device .. how could I be certain..
I said earlier, I already have XMOS usb-spdif converter that works fine .. both devices are from China and use the same drivers, maybe that's the problem .. old device never have problem, just a new board sometimes works then stops... for now I can not find the reason stops, it only happens when I switch from one to the other, in Foobar I get a message that it can not initialize driver..
Sorry to here about your problems.
I am new to this and have never used a computer for music .
I didn't order the USB card to go with my dac but was planning to order it at a later time.
The company I ordered my dac from didn't offer the xmos dac but offered a 6331 USB I think it was.
Perhaps there's a reason for this.
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XMOS is not the right solution for audio, at least not with the Chinese drivers.. TE8802 seems a more logical solution..
In any case, if I decide to buy another DAC, certainly not from minishow..
My experience is quite the opposite, XMOS is a s good USB interface if not better than CM6631 and Minishow gave me good service, e.g. provide me the latest XMOS driver upon request, I bought the XMOS and AK4399 single board from him and it worked well.
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