Upgrading the Sony XA5400es sacd player - diyAudio
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Old 28th December 2014, 11:21 PM   #1
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Default Upgrading the Sony XA5400es sacd player

Hi guys,

I realise that probably most of the mods i allready did are in the opinion of many to be psycho acoustic related..

BUT, i would appreciate if you guys could have a look if there are any further components in the player worth upgrading.

E.g. the opamps or some other caps?

SO ANY RECCOMENDATIONS ARE VERY WELCOME!


To summarise what i have done allready;

1. Eliminated vibrations to the flimsy plastic transport by covering parts with bitumen.

> I perceived this as being a good addition, as such, that to MY ears afterwards this mod, the music sounding more pleasing, a bit cleaner.

2. Replaced the original fuses with the brand 'hifi tuning fuses'.

> This was an experiment, i did not really believe in the possibility of this making any difference, (Warning: this might be VERY psycho acoustic) i was wrong, to my suprise it did make quite a difference. and i do not regret having done this.

3. Bypassed the ac filtering on the psu

> this, to my ears, was a good enough mod, i got this tip from a guide from Tino (an Italian gentleman who has a webblog regarding his modification of the xa5400es player and is the reason why i also started this little project.)

4. Replaced the coupling caps surrounding the DAC chip with Elna Silmic II in greater values.

> I am very very content with the result! This was a cheap mod and brought so much, again to my ears


And now for the mods which i have in mind and would like YOUR opinion on!


5. PSU caps before the regulators

> QUESTION:
Which ones should i get, Nichicon FW? or Elna Silmic II? or any other perhaps?


6. C183, C156 and C159 (power line crystal oscillator and clock)

>First two are originally 180uF 6.3V and i will change to: Elna Silmic II 220Uf 10V

>> the C159 cap is original 39uF, 16V and will change this one to a 39 uF 16V Elna Silmic II
QUESTION
Would a bigger value be of any benefit for this cap? perhaps an 47uF or even a 100uF?


7. Replacing the 5V power supply regulator (a Rohm BA05T), used for both the DAC and the clock circuit, with a Fidelity Audio SPower Digital.

> (QUESTION:
ANYONE HAVING ANY EXPERIENCE WITH THESE?

8. Opamps, now there is the OPA2132UA/2K5 fitted in the player

> QUESTION:
So far i have the following reccomendations from Mooly and Stephan:

# LM4562
# B-B OPA134/2134/4134

maybe anyone else so i have a couple of possible contenders which i can experiment with?


9. Resistors in signal path

>QUESTION:
Could there possibly be any benefit from changing a few resistors to e.g. audio note tantalum 2W on specific locations? If so which ones should i consider changing?



Thanks for reading and looking forward to some nice tips !!

Last edited by simsalabim; 18th January 2015 at 01:34 PM.
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Old 29th December 2014, 08:20 AM   #2
Mooly is online now Mooly  United Kingdom
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Quote:
Originally Posted by simsalabim View Post
Would a different opamp be a good mod?
Which is reccomended and why?
Depends what is fitted already and how well it is implemented.
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Old 30th December 2014, 12:05 AM   #3
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I need to have a look at what is fitted, hope to disassemble the player tomorrow, thanks.
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Old 31st December 2014, 09:22 AM   #4
ColinA is offline ColinA  United Kingdom
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Quote:
Originally Posted by simsalabim View Post
I need to have a look at what is fitted, hope to disassemble the player tomorrow, thanks.
I suggest getting a service manual FIRST
then understand the circuit and layout before diving in.
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Old 3rd January 2015, 10:20 AM   #5
marce is online now marce  United Kingdom
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What are hi-fi tuning fuses?
Where are the ceramics you are going to replace, what is their function in the circuit, is replacing a ceramic with an electrolytic a good idea, not without knowing the circuit operation.
Replacing ceramic decoupling caps (the most common use of ceramic caps in SMD designs these days) with electros is not a good idea.
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Old 3rd January 2015, 10:42 AM   #6
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Always refer to the service manual. Bitumen on the cd mech, Hi Fi fuse? Improved the output sound? I find that hard to believe!
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Old 3rd January 2015, 11:27 AM   #7
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Originally Posted by JonSnell Electronic View Post
Always refer to the service manual. Bitumen on the cd mech, Hi Fi fuse? Improved the output sound? I find that hard to believe!
Hi Jon, thanks for your reply, i appreciate it when people try to keep me on the ground!!

So yes, i agree.. and last thing i want to do is to say that these mods are something somebody should try (thus people spending money on the wrong things), i just state that i did change the fuses and that in my perception it bettered the sound, this is probably psycho acoustic, i know i am sensitive to that and again appreciate your reply, however..;

i can understand such replies come from people with a sound background in audio engineering, when you do not have that, and still want to DIY on the equipment you have you start looking for easy mods, like the fuses, if i would have a knowledge of the circuit i agree again with you that i probably woulnd't bother.

Therefore i started this thread, on DIY, because i know knowledgeable people come here, and i just hoped that maybe some people have allready changed a few aspects on the player which benefitted the sound, e.g. the opamps or any other component.
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Old 3rd January 2015, 11:35 AM   #8
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Quote:
Originally Posted by marce View Post
What are hi-fi tuning fuses?
Where are the ceramics you are going to replace, what is their function in the circuit, is replacing a ceramic with an electrolytic a good idea, not without knowing the circuit operation.
Replacing ceramic decoupling caps (the most common use of ceramic caps in SMD designs these days) with electros is not a good idea.
Hi Marce, thanks for your reply!

I have copied the page in the service manual and circled red is the caps i replace with the Elna's.

Why on earth would i do that you might think..
I have found a webblog of a person in Italy that modded his player and documented it thoroughly, this mod he describes as being a worthwile mod.

I maybe very stupid now.
Especially since i am almost done allready..
Please if you think it might be a very bad idea, can you than explain why?
Would be obliged!

Thank you.
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Old 3rd January 2015, 11:59 AM   #9
marce is online now marce  United Kingdom
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What device is IC202 please?
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Old 3rd January 2015, 12:12 PM   #10
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Originally Posted by marce View Post
What device is IC202 please?
Hi Marce,

that would be the DAC chip, it is the DSD1796
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