To a degree, I can't follow all the traces. I'm not sure what's up with the output ones. Someone else on here I think talked about them. I'd imagine lower noise ones might be good, but without knowing the schematic I'm not certain what to suggest.
If the input diodes are so you can hook up AC, remove and bypass without a doubt. If this is true, it may make the Sure re-contend in it's ability to play with the heavily modded units.
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Im curious on the output ones too.
What can possibly expected if input diodes are bypassed?
I asked for the schematic. They wouldn't send it to me.
The sound should be more pleasant if they are bypassed (if they're what I think).
For example the chipamp TDA7297 doesn't even sound good with a diode in place so it can be run with AC. (well someone might think so, it sounded bad to me)
For example the chipamp TDA7297 doesn't even sound good with a diode in place so it can be run with AC. (well someone might think so, it sounded bad to me)
So I guess youd bypass the input diodes and install the coil craft that some are doing on the YJ board.
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Depends, if the Sure operates at a higher frequency it may not need the coil crafts.
Did any documentation say that the board can run on AC ?
The output diodes are clamps. I just looked it up. They prevent any possible blowing of capacitors if your amplifier is turned on without speakers as a load, from oscillation. They're optional you might say, with caution, but probably aren't causing much of an issue.
The input ones, those might be significantly be adding something undesirable, if they're for AC input. If they're for oscillations than they probably aren't adding much noise.
However, if one doesn't mind a potential sacrifice, they could just remove all the diodes and see what happens for the team! I don't know if Sure added them purely for safety, or because a higher switching frequency needs them.
As I searched, this was discussed on like page 1, probably where Sure got the idea...
Did any documentation say that the board can run on AC ?
The output diodes are clamps. I just looked it up. They prevent any possible blowing of capacitors if your amplifier is turned on without speakers as a load, from oscillation. They're optional you might say, with caution, but probably aren't causing much of an issue.
The input ones, those might be significantly be adding something undesirable, if they're for AC input. If they're for oscillations than they probably aren't adding much noise.
However, if one doesn't mind a potential sacrifice, they could just remove all the diodes and see what happens for the team! I don't know if Sure added them purely for safety, or because a higher switching frequency needs them.
As I searched, this was discussed on like page 1, probably where Sure got the idea...
Give your 1543 the low noise PSU from the Subbu, add an LC filter (like this one on my blog - http://www.diyaudio.com/forums/blogs/abraxalito/1157-dac-filter-discrete-buffer.html) to the output and most likely you'll never look back at the ES9023. Trafos will be called for to gain some isolation from USB though unless your TPA3116 is battery-fed.
Unless I want to listen to higher resolution music files of course.
You use a TDA1543 based DAC yourself? Interesting to come across fans of that chip - its so easy to follow the next great thing and leave the good stuff behind.
Yeah hi-res (in terms of more bits than 16) isn't a good match for the 1543. However when your RBCD is optimized you'll probably find there's no craving for hi-res. At least I found that, others have too.
I used to use 1543s (single, quad and X8), going back two or three years. But then I moved on to TDA1545s and 1387s and haven't looked back to 1543s. Whilst these chips require more care and attention than 1543, they're more transparent when optimized.
I used to use 1543s (single, quad and X8), going back two or three years. But then I moved on to TDA1545s and 1387s and haven't looked back to 1543s. Whilst these chips require more care and attention than 1543, they're more transparent when optimized.
Just spent a couple of hours listening to my OB system with the DUG amp driving the Alpair 7.3. I have to say that the inclusion of the 3116 amp in that system has exceeded my expectations big time!
All comparisons aside (actually I hate doing comparisons, straining to hear differences) in the OB system the amp is stunning - well the whole system is stunning. Even the bass seems tighter, I guess you never really listen to just bass, the full range driver is playing its part in instruments that drive the bottom end of the spectrum.
The sound is so clean, no overhang, by which I mean that individual instruments etc. get their own life without being muddled by others. Drum impact is almost scary.
I think the DUG board with Destroyer OS PSU work really well with Mark Audio drivers - very revealing, sharp, clean sound.
Almost feels like the end of a journey with it all coming together so well now, but I guess this is DIY.
All comparisons aside (actually I hate doing comparisons, straining to hear differences) in the OB system the amp is stunning - well the whole system is stunning. Even the bass seems tighter, I guess you never really listen to just bass, the full range driver is playing its part in instruments that drive the bottom end of the spectrum.
The sound is so clean, no overhang, by which I mean that individual instruments etc. get their own life without being muddled by others. Drum impact is almost scary.
I think the DUG board with Destroyer OS PSU work really well with Mark Audio drivers - very revealing, sharp, clean sound.
Almost feels like the end of a journey with it all coming together so well now, but I guess this is DIY.
That's good news for me - I also have the Subbu V3 and a bunch of MA drivers.
You still have the FHXL with Alp 10.3 - care to give it a spin? 🙂
"Most likely" .... Did you compare TDA1543 and ES9023 in real life ? I know you are not too fond of Delta Sigma DAC chips but so am I 😉
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If by 'compare' you mean did I do a side-by-side comparison, no. I listened to a very simple ES9023 board quite some time ago and found it not to my liking. In particular it introduced some smearing on vocals (the track I tried was Rebecca Pidgeon's 'Spanish Harlem').
Playing🙂
Hi skrstic,
What about the sound after the OSCON mod ??
I own two stock Sure board and i'm planning doing this also !
More propgress on my board modificatiom.
Added 2 22uf 60V OSCON for PVCC at both end of the chip.
Found these caps from a surplus shop for 0.3$ each so I bought 20 to try.
Source is the Shigclone MKII S/pdif to subbu 9023 V2.1 DAC going into a DCB1 then 3116D2. The sound is getting better everyday, these caps may not be at par with the pana sepf cap but I think it comes close plus the price is dirt cheep.
I will think about how to implement Destroyer OS.'s power supply on SMPS. The sound is much better than stocks.
Added 2 22uf 60V OSCON for PVCC at both end of the chip.
Found these caps from a surplus shop for 0.3$ each so I bought 20 to try.
Source is the Shigclone MKII S/pdif to subbu 9023 V2.1 DAC going into a DCB1 then 3116D2. The sound is getting better everyday, these caps may not be at par with the pana sepf cap but I think it comes close plus the price is dirt cheep.
I will think about how to implement Destroyer OS.'s power supply on SMPS. The sound is much better than stocks.
OK, let's suppose we are talking about TPA3116 amps in general. They don't sound the same as we know. No one can say all TPA3116 amps sound the same.
This is also the case with ES9023 DACs, you can't judge from paper how our DAC compares to a TDA1543 DAC board just because you heard one certain board with the ES9023. So I would appreciate it if you would compare DACs in real life as that is what matters.
Viva OSCON'S
By 12 oscons, do one and compare and be amazed.
DO OSCONS. Thanks to one who suggested them. Thanks.
Pictures are after check if it's working. I'm listening it now. Sound is uau. Good. So little so good. I'm not good in explaining but it's beather in every way.
By 12 oscons, do one and compare and be amazed.
DO OSCONS. Thanks to one who suggested them. Thanks.