4558 and TL072 question - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 12th January 2005, 09:12 PM   #1
jsteigs is offline jsteigs  Japan
diyAudio Member
 
Join Date: Oct 2004
Default 4558 and TL072 question

Are the 4558 and TL072 interchangeable? I see a lot of people replace one with the other in their build reports but i just want to make sure.
  Reply With Quote
Old 12th January 2005, 10:38 PM   #2
diyAudio Member
 
Tube_Dude's Avatar
 
Join Date: Mar 2002
Location: Aveiro-Portugal
Default Re: 4558 and TL072 question

Quote:
Originally posted by jsteigs
Are the 4558 and TL072 interchangeable? I see a lot of people replace one with the other in their build reports but i just want to make sure.
Yes!...they are interchangeable!
__________________
Jorge
  Reply With Quote
Old 13th January 2005, 01:27 AM   #3
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi jsteigs,
The TL072 is a J-fet input op amp. This will normally give you lower noise but may not be suitable in all circuits. In audio chains it is normal to install TL072's or better.
-Chris
  Reply With Quote
Old 13th January 2005, 02:19 AM   #4
diyAudio Member
 
udip's Avatar
 
Join Date: Oct 2004
Location: Israel
If your going to replace a 4558 that replace it with NE5532
and not a TL072...


udi.
  Reply With Quote
Old 13th January 2005, 02:50 AM   #5
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Not always, sometimes TL072 is better, sometimes NE5532 is better. They are many other opamps that may better suit a particular circuit. Price can be factor as well.
-Chris
  Reply With Quote
Old 13th January 2005, 02:56 AM   #6
BrianL is offline BrianL  United States
diyAudio Member
 
Join Date: Mar 2002
Location: USA
Both TL072 and 4558 are considered sucky parts. Don't
waste your time, money or ears on them.
__________________
bel
  Reply With Quote
Old 13th January 2005, 03:08 AM   #7
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
In a pure world, yes and maybe. NE5532 sounds okay. It strongly depends on what you are replacing the parts in. If it had 4558's, I doubt it rates spending $10.00 or more each on op amps when these maligned op amps (TL072, NE5532) would bring a large improvement.

You would be shocked to see what your audio signal goes through in a studio. Sometimes an NE5532 is the best thing in the chain. The most common interconnect is Beldin wire. Older consoles are chock full of old electrolytics (new if you are lucky) and older transistor designs. I'm thinking of old Neve and MCI boards. These are prized by some for their sound. Yes, tube and transistor outboard gear. Bucket brigade echo boxes, or if you're real lucky, an older tape loop job.
The newer boards like the SSL may be all digital. 'nough said. Then we compress it. Compression probably happened early on actually

Now, there are some that think op amps are a waste of time & money. Everyone has a point of reference, and the truth is often ugly.

-Chris
  Reply With Quote
Old 13th January 2005, 10:04 AM   #8
jsteigs is offline jsteigs  Japan
diyAudio Member
 
Join Date: Oct 2004
Quote:
Originally posted by anatech

Now, there are some that think op amps are a waste of time & money. Everyone has a point of reference, and the truth is often ugly.

-Chris
wow...very prophetic...

anyways, thanks for all the help every one. I know that these two opamps aren't so great, its just that i can get the 4558s very cheaply here in japan.
  Reply With Quote
Old 13th January 2005, 10:29 AM   #9
diyAudio Member
 
Join Date: Apr 2003
Location: Portland,Oregon
Blog Entries: 4
Send a message via AIM to DigitalJunkie
I replaced the 4558's in my cheaper Sony 50+1 disc changer (CDP-CX50) with TL082's,figured it couldn't hurt.
I actually noticed a bit "tighter/faster" bass response,and the treble seemed a bit better too.At first,It seemed to affect the midrange in a strange way,or maybe it was just my ears/brain adjusting?
I wasn't sure if I liked it at first,but it seems okay,since the 82's are still in there.
I also added small bypass caps on all the filter caps for each rail,and added a couple Sanyo Os-Con's to bump up the capacitance a tad..sounds pretty good for a cheaper player....Still havn't removed the muting x-istors yet either..I plan to replace them with a small relay.
  Reply With Quote
Old 13th January 2005, 02:24 PM   #10
diyAudio Moderator Emeritus
 
lumanauw's Avatar
 
Join Date: Oct 2002
Location: Bandung
Send a message via Yahoo to lumanauw
Does anyone knows what is the dual opamp (like NE5532) that uses folded cascode topology?
  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
by what to replace the TL072? seb83 Analog Line Level 13 1st January 2012 06:44 PM
Upgrading From 4558 To OPA627 Is Expensive! dantwomey Digital Source 6 26th December 2006 03:04 PM
TL072 vs. 4560? kubeek Parts 8 14th July 2006 08:42 PM
4558 replacement with opa627's ljk11 Digital Source 2 25th December 2005 07:52 PM
TL072 replacement Smiffy Digital Source 1 26th October 2003 10:39 AM


New To Site? Need Help?

All times are GMT. The time now is 10:05 AM.


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