• The swap meet forum is for private non-commercial transactions. Only unmoderated members can post here.

    diyAudio provides this forum for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members. Use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

wanted: TDA1541A S1 or S2 Crown

Reality is worse ! I prefer Life of Brian to the one of the genuine guy !

And the chip story was heard not watched ! (I prefer the S1 I have vs the 98 I find drilled in the highs, at least in my set up)
 
Last edited:
Yes your setup. Also your IC. Maybe either one has some slight problem that is overseen. As an engineer I would just replace the part that seems to be the problem for a known good one. Another 1998 chip no one complains about so to speak.

Nice you mention "Life of Brian" 😉 I love the scenes with the Messiah 😀 Classic.
 
Last edited:
Good one, Eldam. 😀
I have seen pictures of some good cd players (not entry level models) with the chips that had Y, and these sure were not cd players in development stage. I'd also like to know what this Y means if anybody knows.
 
Guys, there were also S1 double crown with Y marking : look at the photograph here ! Philips TDA1541A S1 double crown d/a converter

When you buy a chip which has a problem, I believe it is a batch which has not passed the quality control (the last letter, often "H" as Sl1 pointed out in the code explanations above). It doesn't mean the vendor is dishonest, just sometimes he never chechecked what he bought thinking all was ok! Of course there are also thieves with sophistical technics : reprinting font : EBay seller most of the time or second hand on audio forums...

I believe film or not, a guy can bought a batch from Philips in a non official circuit but from Philips and this is what you can get sometimes ! Now I will just buy a chip I can listen too in an excellent dac
 
Last edited:
For all you know that Dutch site may even have a fake chip photo which
he was never aware off & that means that we'll be misinformed. Lol
Tell me how are you to buy a good TDA chip that you can listen too Eldam ?
Safest way is to hunt down old dead CDP's that have those S1 chips. Lol
 
Somehow Im thinking that your tweaks on AYA no longer
works for the Taiwan chip or you've expose the chips weakness
where other users have not.
In my early days of diy I've noticed that all my tweaking will end
up only having a few CD's which sounds gd but mediocore CD's
will sound like ****. As I learned more it became clear that I've
done things wrongly. Now on my set up, even mediocore Cd's
still can sound good. This means that Im on the right track
Btw not saying that your tweaks are wrongly done ya. Lol

Ciao
 
I believe film or not, a guy can bought a batch from Philips in a non official circuit but from Philips and this is what you can get sometimes ! Now I will just buy a chip I can listen too in an excellent dac

Now you are spreading false rumours just because 1 IC supposedly does not perform in your tweaked device. Please stop making such unfounded assumptions. I had the batch and checked documentation (a sticker on the packaging and a form).There is nothing wrong with these. Do you really think a manufacturer keeps defective products in stock ? It starts to seem like womens gossip. If hundreds of these IC's perform like they should and only your DAC has some problem it might be that the problem is specific to your device and/or your skills. At least that would be a technical approach to a challenge. It might very well be that some tweaks don't work 100% as previously known on this specific IC. A car mechanic would not distrust all Renault Megane if he has one that has a serious technical problem. ... eh, bad example 🙂 There iw already enough mistrust regarding TDA chips, I would never buy one anymore these days and go on with what I have. The hype being partly myth and being partly true performance has created too many side effects IMHO.

The challenge would be to make this specific IC perform as good as it can. Like the cabernet grape being different every year and still being able to make a good wine from every years batch 😉
 
Last edited:
... but why all my others chips performs well (even the S1 which is near in sounding signature) but not this one or the two others Taiwan 98 I sent back as they were not for me ?! It is possible and faisible than in the big batch you bought there were some bad ones and even the one I have is not from your batch...and even more this is not about money as the price was very correct & friendly, so not a plot !

Well, I will send it to someone who knows, maybe it asks more post filtering than the simple NOS DAC I have (AYA from Audial + IanCanada front end with very low noise Mravica regs and R-Core traffo... I should say this is my humble skill who connected the boards togethers 😀... and put a wood cabinet around; maybe a Crystal I soldered with too much heat, etc... but again why just this chip gives a bad result : it is not more transparent/clear than the S1 i have)

I should test it with a Earth connection maybe... but even all the others TDA chips or your own Subu DAC sounds fine in this setup ! Notice the default is subtle and ask a very clear dac to hear it (but very fatiguing)! This is why I came to the same conclusion as you : swap the 'non enough good" part ! I have maybe one day the possibility to hear it with a pre filtering chip !). But yes it can make sense than Something is wrong somewhere as it's diy (cold joint, bad linking somewhere, etc : hard to check when it becomes complex & digital for a simple enthusiast like I am ...

@ Sumotan : me I'm very clever : I ask the guy to put the chip in its dac and to let me listen to it via his smartphone... anyway I'm deaf !😀
 
Last edited:
Of course the Subbu DAC sounds excellent and it plays high res stuff too. Sell the TDA DAC and be happy 😉

Seriously, the reason I made the Subbu DAC was that I was fed up with TDA chips. Too bad the ES9023 we sold with the boards were sold to us by a coughing man in a rain coat in a parking garage 🙂
 
Last edited:
No dac can fight with a properly tweak TDA on Red Book
play back Jean Paul. This I dare say in terms of overall
musicality. Yep different ppl have different taste but the
why are we all hanging around a 20-30 yr old chip &
90 yr old DHT tubes.

Cheers
 
Of course the Subbu DAC sounds excellent and it plays high res stuff too. Sell the TDA DAC and be happy 😉

Seriously, the reason I made the Subbu DAC was that I was fed up with TDA chips. Too bad the ES9023 we sold with the boards were sold by a coughing man in a rain coat in a parking garage 😉

JP, the AYA with Ian's stuffs outperforms the Subbu : it is not the same dimension anymore: you should do hear it to understand ! I would have invited you to drink some wine if you were closer ! It's a little like if you putt an Accuphase near a Denon CD player.... You might desolve the Taiwan chip in a glass of coca-cola after listening to it ! Or drink the Coca instead who knows !

Anyway the Subbu sounds very good and can go even further with some tweaks : a well born DAC !

@ Sumotan : If i have soft skill and not rude skin I will try to make the same surounding than the AYA in an IC for these chips : CS4397, AD1862, PCM63, and maybe PCM1704... as well ! But as we know all the layout and the pcb design is all and not everybody has enough experience despite all the many readings and advice to make a proper pcb !
 
Last edited:
Well we must be thankful that there's these gurus who makes
these wonderful kits for us to purchase & all we need to do is
tweak it to death. Lol
CS 4397 !!!!!! Cirrus chip u must consult me ya . lol
That original CS 4328 is the king if you know what to
do with it but no where compared to the TDA for overall
SQ. Could even sound better then Subbu who knows.
It's got this wonderful sounding build in mos fet output stage


Cheers
 
I was just joking, I am fully aware of the performance of TDA1541A but abandoned it for some reasons (even if it is the best) and wanted something simpler/more universal. Personally I prefer good sound quality combined with user friendliness so being able to play all "standard" formats and that at low jitter. Limiting myself and needing to think constantly what it can and what it not can play is not my cup of tea. Paying extreme prices for chips from dubious sources and all the insecurities, again not my cup of tea.

It is in fact silly to compare the Subbu DAC with any TDA1541A DAC as it can play more and that with excellent sound quality for the price of just 2 no crown TDA chips. I would rate the price/quality ratio as better to be honest. Sometimes absolute best quality is not what one is after.
 
Last edited:
Hi JP
You being the engineer, I have auditioned some new discrete R2R
dac but they just don't sound as gd as the TDA. What's your
opinion on this ? Is it because these new gen designers don't
understand how to build good sound using properly matched
components or ???

Thank
 
JP, this is you who compared and said you fed up with the TDA for newer designs ! Asking yourself your own skill, lol !

good SQ/P for sure, well done than this little Subbu, it sounded better that the crappy Soekris stock...(dunno for the highly modded one or further versions) !


I played some 192 and 380 sampling on my S1 TDA1541A as I have simultaneous mode and 45/49 crystals speed from Crystek... well, it's good : Kind of Blue from Miles Davis or Stan-Getz/Gilberto gills are awesome reccordings !
 
Last edited: