Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Use this form to submit comments directly to the Asylum moderators for this forum. We're particularly interested in truly outstanding posts that might be added to our FAQs.
You may also use this form to provide feedback or to call attention to messages that may be in violation of our content rules.

You must login to use this feature.

Inmate Login

By default, logging in will set a session cookie that disappears when you close your browser. Clicking on the 'Remember my Moniker & Password' below will cause a permanent 'Login Cookie' to be set.

Moniker/Username: The Name that you picked or by default, your email. Forgot Moniker?	Examples "Rapper", "Bob W", "joe@aol.com".
Password:	Forgot Password?
	Remember my Moniker & Password ( What's this?)

If you don't have an Asylum Account, you can create one by clicking Here.

Our privacy policy can be reviewed by clicking Here.

Inmate Comments

From:
Your Email:
Subject:

Message Comments

Original Message

LM4562 replacing an OPA 2134

Posted by EdAInWestOC on December 2, 2010 at 11:53:24:
I hope this isn't a stupid question but I noticed that the pin out for the LM4562 is identical to the OPA2134. I have a phono preamp based on the OPA2134 and wondered if the LM4562 could be used as a one for one replacement for the OPA2134.

I like the phono preamp (an Acoustech PH-1P) but couldn't help wondering if the LM4562 would make an improvement. There is sufficient buz about the LM4562 to at least check the possibility out.

There are four OPA2134s in the preamp. All of them are 8 pin DIPs mounted in sockets. I would like to try simply swapping the OP amps to see what I get.

Assuming this is possible, other than sound quality improvements should I expect any improvement in S/N performance?

Thanks,
Ed