Hi Jaffrie
Well we know he is open when I asked in 2014 for uf-l input on the AYA 2 2014 and furthers and the mods I have made he published in the manual till Aya4 version before he refined the PS on the AYA5. So stupborn is not in his personality and not in minne either,just I know the difference between a young lady and an old junk.
We had a conversation if I remember in PM about that DEM clock with that frequency and the 100 uF caps, it was a little technical but to make fast : he was not convinced at all for some reason and tonall sound equilibrium. Was simple explanation from a pedagog that know perfectly this chip.
I remember you didn't like it as well. As for the active DEM we were not agree about the active DEM of the AYA : I found the bass were fat and it was a regress and we know my simple mod sounded better in this dpt. He finally not advice it anymore in the Aya5 while it is still there as an option.
Btw you still didn't try some of the mods I told you... 8 years ago if I remember, ahaha
So now you like the 100 uFs caps DEM things, tom y ears it is not good (don't like the strings, the bass presentation,...) and was still theorical when John wrote it, there was no protos with real world sound checking from him but people jumped in the train. As RyanJ board with the Power supply distribution some call sota... I think it is a limitation and we had no details about the layers... Pedja's is clever and saw the opportunity of a ground star with a standaloen dacchip at these speeds that are still low (clever guy). When I see he is still proposing bare boarde at 50 euros and people here still waste monney on boards from diyers from here at ebay or elswhere, I think they are wrong or just have no real experience on the tda1541A or innocents ! Or just watch bad measured screen capture from death diyers !
But Pedja's does try for real, and like you and me, part by part. So yes he stills refine things.
I still think you have one to try the complete mods and seond the simultaneous mode I wait you try for 8 years Bro ;
(Oh I see some plussoie but still do not know about the people they talk about... pathetique ! as they do not know you or me either and gave nothing to the world)
Best Bro, I still wait you popuate you spare board till the end, comon just few parts missing (just avoid the relays and jumpers the i2s like I show you on the photograph) and I send you an I2Sto PCM board to try the sim mod, you will like it. It is a major henhacement VS that DEM things everyone follows like lambs ! First try the main things before the little ones, imho ! But of course YMMV, but at least try it please !It is not only about rethorical!
Well we know he is open when I asked in 2014 for uf-l input on the AYA 2 2014 and furthers and the mods I have made he published in the manual till Aya4 version before he refined the PS on the AYA5. So stupborn is not in his personality and not in minne either,just I know the difference between a young lady and an old junk.
We had a conversation if I remember in PM about that DEM clock with that frequency and the 100 uF caps, it was a little technical but to make fast : he was not convinced at all for some reason and tonall sound equilibrium. Was simple explanation from a pedagog that know perfectly this chip.
I remember you didn't like it as well. As for the active DEM we were not agree about the active DEM of the AYA : I found the bass were fat and it was a regress and we know my simple mod sounded better in this dpt. He finally not advice it anymore in the Aya5 while it is still there as an option.
Btw you still didn't try some of the mods I told you... 8 years ago if I remember, ahaha
So now you like the 100 uFs caps DEM things, tom y ears it is not good (don't like the strings, the bass presentation,...) and was still theorical when John wrote it, there was no protos with real world sound checking from him but people jumped in the train. As RyanJ board with the Power supply distribution some call sota... I think it is a limitation and we had no details about the layers... Pedja's is clever and saw the opportunity of a ground star with a standaloen dacchip at these speeds that are still low (clever guy). When I see he is still proposing bare boarde at 50 euros and people here still waste monney on boards from diyers from here at ebay or elswhere, I think they are wrong or just have no real experience on the tda1541A or innocents ! Or just watch bad measured screen capture from death diyers !
But Pedja's does try for real, and like you and me, part by part. So yes he stills refine things.
I still think you have one to try the complete mods and seond the simultaneous mode I wait you try for 8 years Bro ;
(Oh I see some plussoie but still do not know about the people they talk about... pathetique ! as they do not know you or me either and gave nothing to the world)
Best Bro, I still wait you popuate you spare board till the end, comon just few parts missing (just avoid the relays and jumpers the i2s like I show you on the photograph) and I send you an I2Sto PCM board to try the sim mod, you will like it. It is a major henhacement VS that DEM things everyone follows like lambs ! First try the main things before the little ones, imho ! But of course YMMV, but at least try it please !It is not only about rethorical!
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Yes promise to finish that Aya base on your recommendations. When I first tried the recommended Dem 100uf caps I didnt like the sound,
yes fat & slow but recalled piano sounded more real. Guess I was bored recently something told me to give it another go, well had spare
KZ 100uf 25v caps & gave it another go, wow much more transparency but sound was tight & in your face, than I remenbered that I kept
saying not to use 25v version of KZ so out it went & in with the 50v KZ now this is a tight squeeze but with the 0.1uf pps caps as bypass,
it really is another level. you should give it a try sometimes. After all I see that you modding the ouput into a tube stage so what's there not to
try just for experience sake & fun. lol
Cheers Bro
yes fat & slow but recalled piano sounded more real. Guess I was bored recently something told me to give it another go, well had spare
KZ 100uf 25v caps & gave it another go, wow much more transparency but sound was tight & in your face, than I remenbered that I kept
saying not to use 25v version of KZ so out it went & in with the 50v KZ now this is a tight squeeze but with the 0.1uf pps caps as bypass,
it really is another level. you should give it a try sometimes. After all I see that you modding the ouput into a tube stage so what's there not to
try just for experience sake & fun. lol
Cheers Bro
I promiss to retry Bro with your mods when you try sim mod at least and SC Cut crystal at 5 M hz, I just will have a pcb cause I do not like average grounding with that chip if i try again that no so good 50 Hz DEM... I even do not understand however why some still use ceramic 0.1 uf to bypass that mod and make resonant tank circuitry... Well, as far they measure just the level of THD they are happy !
About the tube I/V I have good guidance and a sota non microphonic NIB tube (I mean for a tube, lol ) or I would have not put any fingers in it... And still It is with transistors in it (so half or less than a tube sound, story to illustrate and if "tube sound" words has any sense). Passive elvating traffos have their own drawbacks and the best cause more expensive than a plane from here to Spore, ahahah ! (so not elevating traffo or OT traffo for me, as big H numbers chocks... (Well I did some interressant experience with ad1862 and a 4 layers pcb I draw but I do not propose you as I have to wait 8 years or more with you, lol ... and I still think tda1541A with good chip selection from it still has an edge, me still have only 2 ears yet !
See you Jaffrie
About the tube I/V I have good guidance and a sota non microphonic NIB tube (I mean for a tube, lol ) or I would have not put any fingers in it... And still It is with transistors in it (so half or less than a tube sound, story to illustrate and if "tube sound" words has any sense). Passive elvating traffos have their own drawbacks and the best cause more expensive than a plane from here to Spore, ahahah ! (so not elevating traffo or OT traffo for me, as big H numbers chocks... (Well I did some interressant experience with ad1862 and a 4 layers pcb I draw but I do not propose you as I have to wait 8 years or more with you, lol
... and I still think tda1541A with good chip selection from it still has an edge, me still have only 2 ears yet !See you Jaffrie
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Btw J. did you see Rogic designed on specs a O-Core output traffo as an option with the new GB ? Wonder if there is a symetric output option with it ? Usefull to cancel H2 disto or noise of the line due to the symetrical nature ? Linearity of the traffo matters...
Also wonder why he does not use such traffo for PS as well as an alternativ to EI-Core and simple torroids ! Maybe I ask him... but think he is very busy with the GB and summer holyday I surmise.
Also wonder why he does not use such traffo for PS as well as an alternativ to EI-Core and simple torroids ! Maybe I ask him... but think he is very busy with the GB and summer holyday I surmise.
It didn't changed things in mine with my 47K pre DC coupled. theorically the second opa has the same current output, no ? Just lower impedance as it is used base input and open loop) ? Btw wonder if it is still G+1 after the 120R output well...
In the AYA5 the diamond discrete output buffer should be more musical perhaps, though I wonder how is made internally the opa861... maybe diamond structure as well, duno...
You try frst, my tweak is older, from 5 years vis a vis of the one with the OT, ahaha ! After I try your ! Better we eat half the banana than I eat the entire banana and you its skin ! . Hurry up, populate your spare in order both to try the arrengement and mostly the sim mode with your Wave I/O before.
cheers
In the AYA5 the diamond discrete output buffer should be more musical perhaps, though I wonder how is made internally the opa861... maybe diamond structure as well, duno...
You try frst, my tweak is older, from 5 years vis a vis of the one with the OT, ahaha ! After I try your ! Better we eat half the banana than I eat the entire banana and you its skin !
. Hurry up, populate your spare in order both to try the arrengement and mostly the sim mode with your Wave I/O before.cheers
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Do you have a detailed mods list for your AYA? I've been using AYA2 for over 15 years and a few mods . I've recently been using Marcels RTZ FIRDAC as a main dac but would like to squeeze more out of the AYA if possible .Hi Jaffrie
Well we know he is open when I asked in 2014 for uf-l input on the AYA 2 2014 and furthers and the mods I have made he published in the manual till Aya4 version before he refined the PS on the AYA5. So stupborn is not in his personality and not in minne either,just I know the difference between a young lady and an old junk.
We had a conversation if I remember in PM about that DEM clock with that frequency and the 100 uF caps, it was a little technical but to make fast : he was not convinced at all for some reason and tonall sound equilibrium. Was simple explanation from a pedagog that know perfectly this chip.
I remember you didn't like it as well. As for the active DEM we were not agree about the active DEM of the AYA : I found the bass were fat and it was a regress and we know my simple mod sounded better in this dpt. He finally not advice it anymore in the Aya5 while it is still there as an option.
Btw you still didn't try some of the mods I told you... 8 years ago if I remember, ahaha
So now you like the 100 uFs caps DEM things, tom y ears it is not good (don't like the strings, the bass presentation,...) and was still theorical when John wrote it, there was no protos with real world sound checking from him but people jumped in the train. As RyanJ board with the Power supply distribution some call sota... I think it is a limitation and we had no details about the layers... Pedja's is clever and saw the opportunity of a ground star with a standaloen dacchip at these speeds that are still low (clever guy). When I see he is still proposing bare boarde at 50 euros and people here still waste monney on boards from diyers from here at ebay or elswhere, I think they are wrong or just have no real experience on the tda1541A or innocents ! Or just watch bad measured screen capture from death diyers !
But Pedja's does try for real, and like you and me, part by part. So yes he stills refine things.
I still think you have one to try the complete mods and seond the simultaneous mode I wait you try for 8 years Bro ;
(Oh I see some plussoie but still do not know about the people they talk about... pathetique ! as they do not know you or me either and gave nothing to the world)
Best Bro, I still wait you popuate you spare board till the end, comon just few parts missing (just avoid the relays and jumpers the i2s like I show you on the photograph) and I send you an I2Sto PCM board to try the sim mod, you will like it. It is a major henhacement VS that DEM things everyone follows like lambs ! First try the main things before the little ones, imho ! But of course YMMV, but at least try it please !It is not only about rethorical!
it's easy, ... take a mortgage !
But non usefull when the designs are, well... ! It's like putting a Ferrari AI in a bycycle, you will not go... higher !
Your only not to fake chance is to find the very few cd palyers that had two crowns, but imo it is not usefull, a little like chasing an edelweis when snorkling !
Try to find a late Taiwann made. Then you will have both sounds the TDA1541A was able to ! 90% of the rest is the surrounding design.
You just bougth a copy of a good design, which is good because well made and gaving it all, power supplies, clever reg, etc ! So whatever the tda chip you will be limited, with an copy atrtifact.
But non usefull when the designs are, well... ! It's like putting a Ferrari AI in a bycycle, you will not go... higher !
Your only not to fake chance is to find the very few cd palyers that had two crowns, but imo it is not usefull, a little like chasing an edelweis when snorkling !
Try to find a late Taiwann made. Then you will have both sounds the TDA1541A was able to ! 90% of the rest is the surrounding design.
You just bougth a copy of a good design, which is good because well made and gaving it all, power supplies, clever reg, etc ! So whatever the tda chip you will be limited, with an copy atrtifact.