Replacing NE5532 in a Sony CDP-XA3ES‏. - Page 2

oshifis · 31st January 2012, 11:21 AM

Quote:

Originally Posted by Pipomantis

And what about THS4032? Any experience in XA-_ES player?

I found the THS4031 flat and boring. Now I am using OPA627 biased in Class A (1.5k resistor from output to negative supply).

Pipomantis · 31st January 2012, 07:23 PM

Quote:

Originally Posted by oshifis

I found the THS4031 flat and boring. Now I am using OPA627 biased in Class A (1.5k resistor from output to negative supply).

If you see the photo I post, which one to replace? IC602 or IC603?
Where do you bouth this chips?
Thanks.

SoNic_real_one · 08:51 PM

You have three OpAmps per EACH channel there. Converters seem to be 503 and 603.

Pipomantis · 1st February 2012, 06:03 AM

Quote:

Originally Posted by SoNic_real_one

You have three OpAmps per EACH channel there. Converters seem to be 503 and 603.

To be specific: Do I install OPA2134 on ic502 and ic602 and on the other hand AD627(dual) on IC503 and IC603?

Is this a good solution? Or tell me another. And sorry for my ignorance in electronics.
I need to improve the sound of my beloved XA3ES.

Mooly · 1st February 2012, 07:09 AM

I would endorse the OPA2604 recommendation for this player for replacing all the 5532's.

The AD627... no way. Thats a micropower opamp totally unsuited to audio. Slew rate 0.05V/us

Pipomantis · 1st February 2012, 03:48 PM

I´ll go for OPA2604. I hope to find the softness and sweetness I want. The CD match with Audiolab 8000S amplifier and B&W CDM1SE speakers.

SoNic_real_one · 1st February 2012, 04:58 PM

I did try them. Not very happy about them, after that I switched to LM4562...
Do what I did - use some good quality sockets first to try different variants. When you settle for one, you can eventually remove the sockets.

Pipomantis · 1st February 2012, 05:34 PM

Again I doubt arise. LM4562 or OPA2134.
I'm going crazy. At the end buy a new player.

Xoc1 · 1st February 2012, 06:13 PM

Before You replace the op amps there are other mods you could try.
I have not found a schematic (that I could download for free)!
But looking at your photo has the CD player output stage seems to have muting transistors. If they are muting transisitors they will probably be positioned in the circuit to pull down the outputs. If so, these usually can be removed.
You could probably also remove any DC blocking capacitors if you check that there are no excessive DC offsets.

Mooly · 1st February 2012, 06:14 PM

Quote:

Originally Posted by Pipomantis

Again I doubt arise. LM4562 or OPA2134.
I'm going crazy. At the end buy a new player.

Why doubt ? I thought you liked the player

The OPA2604 is the one to go for if you want the most "analogue and non fatiguing" sound.

The OPA2134 is less coloured but we are talking subtleties.

Either should easily better the 5532's fitted.

I havn't evaluated the LM4562 so can't comment on that one.
For what these parts cost and the few minutes it takes to swap them I can't see the problem tbh

31st January 2012, 08:41 PM	#13
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	You have three OpAmps per EACH channel there. Converters seem to be 503 and 603. Last edited by SoNic_real_one; 31st January 2012 at 08:51 PM.

1st February 2012, 07:09 AM	#15
Mooly diyAudio Moderator Join Date: Sep 2007	I would endorse the OPA2604 recommendation for this player for replacing all the 5532's. The AD627... no way. Thats a micropower opamp totally unsuited to audio. Slew rate 0.05V/us __________________ ------------------------------------------------------- *A simulation free zone.* *Design it, build it, test it.*

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1st February 2012, 03:48 PM	#16
Pipomantis diyAudio Member Join Date: Jan 2012 Location: Malaga	I´ll go for OPA2604. I hope to find the softness and sweetness I want. The CD match with Audiolab 8000S amplifier and B&W CDM1SE speakers.

1st February 2012, 04:58 PM	#17
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	I did try them. Not very happy about them, after that I switched to LM4562... Do what I did - use some good quality sockets first to try different variants. When you settle for one, you can eventually remove the sockets.

1st February 2012, 05:34 PM	#18
Pipomantis diyAudio Member Join Date: Jan 2012 Location: Malaga	Again I doubt arise. LM4562 or OPA2134. I'm going crazy. At the end buy a new player.

1st February 2012, 06:13 PM	#19
Xoc1 diyAudio Member Join Date: Nov 2008 Location: Devon UK	Before You replace the op amps there are other mods you could try. I have not found a schematic (that I could download for free)! But looking at your photo has the CD player output stage seems to have muting transistors. If they are muting transisitors they will probably be positioned in the circuit to pull down the outputs. If so, these usually can be removed. You could probably also remove any DC blocking capacitors if you check that there are no excessive DC offsets.