NE5532 or OPA2134 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 30th May 2007, 01:50 PM   #1
diyAudio Member
 
Join Date: May 2007
Send a message via MSN to wandelblu
Default NE5532 or OPA2134

Hi!

I have a cd player SONY XA2-ES, It has four opamp NE5532, I'm thinking to change them with OPA2134.

Is it really a good sound improvement?

Can you give me some advices?


Best Regards.
Enzo
  Reply With Quote
Old 30th May 2007, 02:31 PM   #2
CJ900RR is offline CJ900RR  Sweden
diyAudio Member
 
Join Date: Jan 2006
Its only your own personal impression that can deside witch one is the best sounding. Compare them both and then make your own desission, its not so much money.

Thats the best advice I can give you.
  Reply With Quote
Old 30th May 2007, 02:44 PM   #3
Did it Himself
diyAudio Member
 
richie00boy's Avatar
 
Join Date: Nov 2003
Location: Gloucestershire, England, UK
They are both comparable chips, both good sounding. I don't think you'll notice much if any difference.
__________________
www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more.
  Reply With Quote
Old 30th May 2007, 05:08 PM   #4
Minion is offline Minion  Canada
diyAudio Member
 
Join Date: May 2006
Location: Cowican Bay , vancouver island
The NE5532 is a Bipolar Input opamp and the OPA2134 is a Fet Input opamp so depending on what the Opamp is doing in the curcuit the OPA2134 may or might not be a suitable replacement....

I would maybe look into other Bipolar input opamps with simular specs for a replacement or maybe post the schematic of the unit....


  Reply With Quote
Old 30th May 2007, 09:42 PM   #5
diyAudio Member
 
Keruskerfuerst's Avatar
 
Join Date: May 2007
A good choice would be:

Analog Devices AD 8620, but the recommended supply voltage is +-12V.

Texas Instruments THS4032.

Both are bipolar input OPs.
  Reply With Quote
Old 30th May 2007, 10:30 PM   #6
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
Quote:
Originally posted by Minion

The NE5532 is a Bipolar Input opamp and the OPA2134 is a Fet

Input opamp so depending on what the Opamp is doing in the curcuit
the OPA2134 may or might not be a suitable replacement....

I would maybe look into other Bipolar input opamps with simular specs for a replacement or maybe post the schematic of the unit....

Hello, Wandelblu, Minon.

If the orginal OP is a FET (like TL072, OPA2134 etc)
we may be careful
sometimes NOT possible to replace with Bipolar (like NE5532 etc).

When the original OP is Bipolar(like NE5532 etc)
we can most always
replace with FET or another similar Bipolar OP.

Another way to say it:
JFET OPamps like OPA2134 can replace most any other audio opamp.
Bipolar or not.



Now there are both Bipolar and JFET OPs of many types.
So there is no 100% garantee it will work
But if unsure, it is good to ask, as been done in this topic.
We are many that could make a very good guess
especially if we can see schematic of actual circuit.


If you want to keep it Bipolar and upgrade to a 'better'
you may want have a look at:
OP275 ---> http://www.analog.com/UploadedFiles/...eets/OP275.pdf
LM833 ---> http://www.onsemi.com/pub/Collateral/LM833-D.PDF



My advice, still:
Go for OPA2134
- it gives great audio value for money
- easy to find and buy - wherever on Earth (except Antartics )
- it has been proven to work well and be stable in most any audio circuit
- without doubt the most used and loved op-amp in diy audio

As being a Dual OP-Amp with JFET input transistors,
it can, in 90% of all cases, replace BOTH Bipolar type and other JFETs.
Without any issues


Regards
lineup
__________________
lineup
  Reply With Quote
Old 30th May 2007, 10:58 PM   #7
! is offline !  United States
diyAudio Member
 
Join Date: Jun 2005
Location: Midwest
Quote:
Originally posted by Keruskerfuerst
A good choice would be:

Analog Devices AD 8620, but the recommended supply voltage is +-12V.

Texas Instruments THS4032.

Both are bipolar input OPs.
AD8620 is JFET not bipolar input.

I agree with the prior post that normally a JFET can replace the prior bipolar, but why the focus on only these two? THS4032 might work but is probably harder to keep stable and it's higher output current capability is unnecessary.

The general character of OPA2132 is slow, semi-smooth and mellow tubby sound. What is the supply voltage for this opamp? That might narrow the possible candidates unless you were to modify more of the circuit to raise voltage some.

Whether these are SOIC or DIP(8?) might matter as well, limiting choices.

How many *need* replaced at what is the budget for it? Many like OPA2107 but it does cost 4X as much, is possibly a more detailed cousin of OPA2132. AD8620 is also a good candidate, a little livelier, less laid-back sound.
  Reply With Quote
Old 31st May 2007, 09:58 AM   #8
rabbitz is offline rabbitz  Australia
diyAudio Member
 
rabbitz's Avatar
 
Join Date: Jul 2003
Location: Newcastle, Australia
Default Re: NE5532 or OPA2134

Quote:
Originally posted by wandelblu
I have a cd player SONY XA2-ES, It has four opamp NE5532, I'm thinking to change them with OPA2134.
I've been through this on a Sony CDP-X55ES and changing the 4 opamps to 2134 did not sound as good (became very shouty and over blown) as leaving the first 2 as 5532's and only changing the last 2 to 2134's.

Best results (by a mile) came from changing the last 2 opamps to AD825.

BTW, the output caps after the opamps were changed to Black Gate NX and have also had success with Nichicon ES.
  Reply With Quote
Old 31st May 2007, 02:55 PM   #9
diyAudio Member
 
Keruskerfuerst's Avatar
 
Join Date: May 2007
In case of FET-input opamps, the source impedance has to be <=2KOhm. Otherwise distortion will rise.

Bipolar opamps do not have this restrition. But they have a much higher input bias current.
  Reply With Quote
Old 31st May 2007, 10:03 PM   #10
ctong is offline ctong  United States
diyAudio Member
 
Join Date: Jun 2005
Location: Clemson, South Carolina
I changed the opamps in my sony scd-c555es to 2132 and it sounds great. 2134 is not good at all. I use pass aleph pre, adcom amp, and b&w n803 speakers.
__________________
CT
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Upgrade for NE5532 diy student Solid State 18 16th February 2014 04:12 PM
What about NE5532? rhavecilla Chip Amps 12 6th September 2007 03:05 PM
PGA2310 & NE5532 get hot? sergiusz Digital Source 10 20th December 2005 12:32 PM
Ne5532 zahlm Parts 3 13th May 2004 09:22 PM
Suspicious NE5532 wxn Parts 22 13th February 2004 08:48 PM


New To Site? Need Help?

All times are GMT. The time now is 09:33 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2