Yes Vunce, but for me it's a game... only bad side is I have to listen many same times the same music materials I work with from several years : a lost time for over musics 
during these tweaking times... but it's a hobby like to construct houses with matches ! (and of course and not the less all thi job is made on the digital front end side ! )
But if you hear my tda1541A dac... after hearing it some are throwing their ESS or AK moden DAC at several thousand usd units through the windows
.... 
.. !
during these tweaking times... but it's a hobby like to construct houses with matches ! (and of course and not the less all thi job is made on the digital front end side ! )But if you hear my tda1541A dac... after hearing it some are throwing their ESS or AK moden DAC at several thousand usd units through the windows
.... .. !
Lol, I take pills for that !
(last night I dreamed this was my last instants on Earth then seing two white tunnels in spite of a standalone one as the usual story... I saw each tunnels had above the entrance a placard !
One was Pan FR and the other one Pan FC ! what was the good one this time for the 7 cloud
.... then I woke up sundenly totally sweat, going out out from the bed... spouse said " what is happening yet ?"... "nothing darling, I need to open my cans of caps to check something !" )
(last night I dreamed this was my last instants on Earth then seing two white tunnels in spite of a standalone one as the usual story... I saw each tunnels had above the entrance a placard !
One was Pan FR and the other one Pan FC ! what was the good one this time for the 7 cloud
.... then I woke up sundenly totally sweat, going out out from the bed... spouse said " what is happening yet ?"... "nothing darling, I need to open my cans of caps to check something !" )
Last edited:
I just assembled and tried the DAC for the first time.
Unfortunately it’s a no go, so I need some help.
I noticed that one of the DACs was warmer than the other so I immediately cut the power.
I carefully checked for shorts. First - between the rails, then - the caps. Nothing. Finally, after a long time I started checking the DAC pins. I noticed a short on one of the (colder one) DACs between pin 1 and 2.
I pulled it out of the socket to make sure it’s the DAC and not the rest of the PCB. I’t s the DAC.
I guess I’m open to a) suggestions and b) if someone is selling another pair of 1862s.
In the meantime, since I still seem to have one chip, I’ll keep digging and will try to make at lest one of the channels work.
On a totally separate note, I realized I have bought a while ago some 4627. I have at least 6 soldered on single brown dog adapters.
If someone is interested, I’ll part with a couple for now - I bought a pair of 627s for this project and I may part with the rest of the 4627 if you guys insist
It seems I also have some 49990 - at least 2 unsoldered and at least 4 more on 2 dual brown dog adapters.
Send me PMs if interested - I’m not eager to part with them, but would be willing to help fellow enthusiasts and save them from evil bay.
All these parts were acquired from Mouser, so 100% legit.
Unfortunately it’s a no go, so I need some help.
I noticed that one of the DACs was warmer than the other so I immediately cut the power.
I carefully checked for shorts. First - between the rails, then - the caps. Nothing. Finally, after a long time I started checking the DAC pins. I noticed a short on one of the (colder one) DACs between pin 1 and 2.
I pulled it out of the socket to make sure it’s the DAC and not the rest of the PCB. I’t s the DAC.
I guess I’m open to a) suggestions and b) if someone is selling another pair of 1862s.
In the meantime, since I still seem to have one chip, I’ll keep digging and will try to make at lest one of the channels work.
On a totally separate note, I realized I have bought a while ago some 4627. I have at least 6 soldered on single brown dog adapters.
If someone is interested, I’ll part with a couple for now - I bought a pair of 627s for this project and I may part with the rest of the 4627 if you guys insist
It seems I also have some 49990 - at least 2 unsoldered and at least 4 more on 2 dual brown dog adapters.
Send me PMs if interested - I’m not eager to part with them, but would be willing to help fellow enthusiasts and save them from evil bay.
All these parts were acquired from Mouser, so 100% legit.
I feel FC has shrill top and recessed low end, how does FR compare to that regard
what Is your choice for post regulator electrolytic
did you try Audio Note Kaisei non polar and polar caps
what Is your choice for post regulator electrolytic
did you try Audio Note Kaisei non polar and polar caps
Ah not at all for me...
You have to test to know as I have alreasy explained twice. If the FCs are genuine and don't work, try the FRs. If the FR doesn t work for you, I assume you will like the Nichicons but then don t try the kz if the FC didn t work. Of course you can try audio note or Mundorf if you feel reassured with them. I assume Elna is what you need also for a try. The Silmic 2 gives you that unatural exta bass and calms down the highs...that can be what you perhaps need for your system.
You have to test to know as I have alreasy explained twice. If the FCs are genuine and don't work, try the FRs. If the FR doesn t work for you, I assume you will like the Nichicons but then don t try the kz if the FC didn t work. Of course you can try audio note or Mundorf if you feel reassured with them. I assume Elna is what you need also for a try. The Silmic 2 gives you that unatural exta bass and calms down the highs...that can be what you perhaps need for your system.
Last edited:
Interesting how much taste is different....for me FC is absolute NoGo, as Samoloko described they sound harsh and utterly "unmusical" to my aging ears.Once I tried them in the heater supply of a tube phono, and they ruined the sound even there, so I removed them asap.
They have been he first low ESR caps around like 20 years ago, times changed a lot since then.
Fm and FR are better, but I would still not put them in positions like decoupling Opamps, maybe in first position after rectifier they are ok.
I agree that Silmics have a tendency for exaggerated bass and smoothed highs, but they are very unfatiguing and can be the right remedy in some systems.
I think it all comes down to know the own preferences in sound, and then come to know the signature of parts, and then cook your meal according to taste.
I once was at aguys place for testing his equipment, there was literally no bass, shrill mids and highs, and he was listening at deafening levels and was absolutely thrilled by it. Happy to be escaped without tinnitus...
Maybe in this case some Silmics would have done good.
On another note...I will have a lot of time soon for putting the dac together finally, as here in Germany due to that Covid thing i am not allowed to work for a month. Thanks god that it is a cheap project...Really curious about how it will sound compared to my Soekris and another friends Denafrips; we will have a shootout then.
Stay safe and healthy!
They have been he first low ESR caps around like 20 years ago, times changed a lot since then.
Fm and FR are better, but I would still not put them in positions like decoupling Opamps, maybe in first position after rectifier they are ok.
I agree that Silmics have a tendency for exaggerated bass and smoothed highs, but they are very unfatiguing and can be the right remedy in some systems.
I think it all comes down to know the own preferences in sound, and then come to know the signature of parts, and then cook your meal according to taste.
I once was at aguys place for testing his equipment, there was literally no bass, shrill mids and highs, and he was listening at deafening levels and was absolutely thrilled by it. Happy to be escaped without tinnitus...
Maybe in this case some Silmics would have done good.
On another note...I will have a lot of time soon for putting the dac together finally, as here in Germany due to that Covid thing i am not allowed to work for a month. Thanks god that it is a cheap project...Really curious about how it will sound compared to my Soekris and another friends Denafrips; we will have a shootout then.
Stay safe and healthy!
Can you post a few detailed pictures of your PCB?
Triple-check all capacitor polarities, measure voltages in the socket with chips unplugged.
What is your supplier of AD1862? If a china supplier, this is the risk
In that case, try to ask the seller to resend another chip.I look forward to your comparison
Use the same (or a similiar) operational amplifiers in both devices, if possible.@Paddy Garcia - I did that before putting the chips in.
Initially, I soldered everything and tested without the DACs and OpAmps. All looked good. Then I put the chips in and tested again.
I will test again without the chips to see if anything changed.
What is your supplier of AD1862? If a china supplier, this is the risk
Those chips came from me, direct from Rochester, so they are brand new. Not to say that one of those couldn't be bad, of course.
Well for me most of the time there is a harchness in the low treble while mellow everywhere with the FM..and that is drilling my ears.
Wellfor a guy like Pedja Rogic, FC can be good...so.
You must not use it alone in a circuitry...but it s straigjt, clear non harshing flat till the end...what you hear is defaults they highlights or you maybe work with tubes anf high efficienty drivers.
Well let stop that uninterresting discussion if you know what to do.
Wellfor a guy like Pedja Rogic, FC can be good...so.
You must not use it alone in a circuitry...but it s straigjt, clear non harshing flat till the end...what you hear is defaults they highlights or you maybe work with tubes anf high efficienty drivers.
Well let stop that uninterresting discussion if you know what to do.
Last edited: