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Old 8th October 2010, 03:05 AM   #51
wlowes is offline wlowes  Canada
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Default modification questions

I am a very happy user of your usb dac for quite a while. It is very good.

I am interested in experimenting with USB to a tda1541a board. Am I correct that I should be able to tap into the signal from pins 1,2&3 of the 1543 on your board, and drive the I2S inputs to a 1541 on a separate board?
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Old 8th October 2010, 03:07 AM   #52
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Yes, that's correct, plus ground.
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Old 8th October 2010, 03:25 AM   #53
wlowes is offline wlowes  Canada
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For those that like to experiment, I suggest experamenting with Sanyo Os-Cons SEPC caps with this DAC. I used the 16SEPC150MD in place of the 1000uf blackgate NX which I had borrowed for another project and some Panasonic 5600uf caps in place of the bg std. Your opinion may vary but to me it took a leap forward. Sound stage bigger, 3d, and precise.
The DAC is excellent as specified. This tweek may be an interesting alternative to some.
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Old 8th October 2010, 09:15 PM   #54
matt J is offline matt J  England
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Hi Peter, I only have Toslink available as digital out, is it possible to rig something up?
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Old 9th October 2010, 04:48 AM   #55
wlowes is offline wlowes  Canada
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Quote:
Originally Posted by Peter Daniel View Post
Yes, that's correct, plus ground.
Awsome!! Thank you. I missed the ground.

This has allowed me to combine three amazing innovators in this hobby. Peter Danial gainclone, +USB DAC + CICSPlay + Lampizator TDA1541. Things are sounding good! Thanks again!

BTW.. put os-con sepc series caps at the pcm2706 with great effect. I think it takes it to a different level.
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Old 9th October 2010, 05:04 AM   #56
le´flu is offline le´flu  Germany
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Hello Peter,

Quote:
Originally Posted by Peter Daniel View Post
I am putting together a DAC based on PCM1794. If it suounds better than my modified TDA1543 I will let everybody know.
any news you would let us know? I´m still using your DAC and upgrades are
always welcome ;-)

By the way, what (brand) are those multi-pin connectors (black ones) between
psu and main PCB?

Greetings ulf
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Old 9th October 2010, 05:55 AM   #57
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Those are Switchcraft: Digi-Key - SC1237-ND (Manufacturer - 4282-5SG-300) I still didn't the put the new DAC together

Quote:
Originally Posted by matt J View Post
Hi Peter, I only have Toslink available as digital out, is it possible to rig something up?
Using Toslink for input is not a problem, here's how it can be done:
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Old 18th October 2010, 03:20 AM   #58
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Default dac with optical input

I want the dac with optical input as my cdp and sound card have only optical out.Will it be as good as coaxial or will there be any difference in sound quality.
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Old 5th November 2010, 02:38 PM   #59
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How do i buy the usb dac or even get any info on the new 1794 version?
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Old 5th November 2010, 09:35 PM   #60
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I'm out of USB DACs, (only SPDIF version is available) and I didn't touch 1794 yet.
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