Monkeyed around with the DAC. 1K + 47nF in original cct.
Changed to 3300pf / (220nF + 470R) and is certainly more open and cleaner sounding, bass may have more drive and speed too. It is a little more clinical/tingly at first few listens but we will see how it settles as the unit warms up etc.
Changed to 3300pf / (220nF + 470R) and is certainly more open and cleaner sounding, bass may have more drive and speed too. It is a little more clinical/tingly at first few listens but we will see how it settles as the unit warms up etc.
This chip thing seems bizarre....
My two chips: GYAROC9212 made in Korea, GFTAGXAF0303 made in Taiwan and better sounding.....
How could it be an F if made in 2003 when there are Gs going back to 1997?
A run of an old dye?
JP, I may be interested in one of your G chips.... PM price please or chips you may be after to swap.
"Best mod is too get rid of SPDIF and built a better DAC driven directly in the DVD/CD/harddiskplayer"
Perhaps but I have listend to a fair wack of affordable one disk players up to say USD1400.00 equivalent that have not excited me much at all. The new Lyngdorf CD is one I like a lot and is a lot better then what I have but also silly money.
Not being in a store that sell digital anymore I do not get the opportunity to pop many lids anymore so have little idea of what makes what work these days nor the same exposure to new players. I also hate the universal mech loading times of some of the new players. (They said LP lacked convenience, I can "load" and spin up an LP faster then DVDA/SACD/DVDV etc.....)
My two chips: GYAROC9212 made in Korea, GFTAGXAF0303 made in Taiwan and better sounding.....
How could it be an F if made in 2003 when there are Gs going back to 1997?
A run of an old dye?
JP, I may be interested in one of your G chips.... PM price please or chips you may be after to swap.
"Best mod is too get rid of SPDIF and built a better DAC driven directly in the DVD/CD/harddiskplayer"
Perhaps but I have listend to a fair wack of affordable one disk players up to say USD1400.00 equivalent that have not excited me much at all. The new Lyngdorf CD is one I like a lot and is a lot better then what I have but also silly money.
Not being in a store that sell digital anymore I do not get the opportunity to pop many lids anymore so have little idea of what makes what work these days nor the same exposure to new players. I also hate the universal mech loading times of some of the new players. (They said LP lacked convenience, I can "load" and spin up an LP faster then DVDA/SACD/DVDV etc.....)
tubenut said:
"Best mod is too get rid of SPDIF and built a better DAC driven directly in the DVD/CD/harddiskplayer"
Perhaps but I have listened to a fair wack of affordable one disk players up to say USD1400.00 equivalent that have not excited me much at all. The new Lyngdorf CD is one I like a lot and is a lot better then what I have but also silly money.
Not being in a store that sell digital anymore I do not get the opportunity to pop many lids anymore so have little idea of what makes what work these days nor the same exposure to new players. I also hate the universal mech loading times of some of the new players. (They said LP lacked convenience, I can "load" and spin up an LP faster then DVDA/SACD/DVDV etc.....)
Maybe the DAC you use now can be built into the cdplayer you have now. Or you can build a new DAC in the existing cdplayer.
That's what I meant.
Did you see the Russ White Opus DAC ??
Hi JP
I seem to have lost all my manners in the new year... THANK YOU for all your input and help here, my DAC sounds quite a lot better after chip change and monkey business
The quite seriously modded Theta Data Basic II has little space for the big DS Pro Basic II pcb, I have thought in this line since I do not really use the additional inputs on the DAC these days.
The moment I see a rave for something affordable by someone I know for a smaller unit I will look at it....
Ta
G
I seem to have lost all my manners in the new year... THANK YOU for all your input and help here, my DAC sounds quite a lot better after chip change and monkey business
The quite seriously modded Theta Data Basic II has little space for the big DS Pro Basic II pcb, I have thought in this line since I do not really use the additional inputs on the DAC these days.
The moment I see a rave for something affordable by someone I know for a smaller unit I will look at it....
Ta
G
I replaced the original loop filter 1k / 68n with 3050pf mica and 460 ohm / 150n tin foil.
No possibility for A/B can't say if sound is better.
Made A/B with and without the mica, no difference.
Added 10n Teflon to the Mica, no difference.
How large can the direct cap be made ?
No possibility for A/B can't say if sound is better.
Made A/B with and without the mica, no difference.
Added 10n Teflon to the Mica, no difference.
How large can the direct cap be made ?
Bernhard said:
How large can the direct cap be made ?
Appendix C of the CS8427 datasheet should give you some ideas.
Bernhard said:I replaced the original loop filter 1k / 68n with 3050pf mica and 460 ohm / 150n tin foil.
No possibility for A/B can't say if sound is better.
Made A/B with and without the mica, no difference.
Added 10n Teflon to the Mica, no difference.
How large can the direct cap be made ?
Please first use the defined values, then make comparisons. Keep things as compact as possible. The 3.3 nF can be soldered between the pins if you use ceramic SMD.
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