Drop in replacement for NE5532?

[grievousangel]

NE5532 upgrades?

Hello All:

What's the latest on an excellent upgrade for the NE5532 opamp? I've looked into the BB OPA2604 and the AD OP275 so far.

I have a Tascam M5000 console (~$45k for 40 channels in '95) and looking into converting to 24 channels and re-doing the center section.

Suggestions please?

Thanks,
Billy

 

[abraxalito]

I'd suggest the HA7-5222 (which is obsolete but you may find enough on the secondary market) with the proviso its more power-hungry than the 5532 by a factor of about 2. So were you going to upgrade the power supplies (and cooling) too?

HA7-5222/883 datasheet pdf datenblatt - Intersil Corporation - Dual, Low Noise, Wideband, Precision Operational Amplifier ::: ALLDATASHEET :::

You won't be needing the /883 version for an audio application incidentally.

 

[Karl vd Berg]

Get it all working first and then I would suggest trying the OPA2604 and perhaps the LM4562.
OPA2604 is the most "coloured" sounding (in the nicest possible way) and the LM4562 probably the more clinical.

and

I can only echo the praise for the BB OPA2604. It tends to have a warm sound which I like.

Cheers,

Pete

Man, today I finally heard the difference. Nice warm, very detailed and what a S-P-A-C-I-O-U-S sound as well!! To my ears this is "THE" opamp!

 

[Mooly]

Pleased you like it and its still one of my favourites.

 

[KatieandDad]

I'm just building a Linkwitz/Orion Active Crossover with 14 of the little babies, I hoping for great things from them. (That's the OPA2604)

 

[Karl vd Berg]

Pleased you like it and its still one of my favourites.

I'm still listening to "it" inside a small Yamaha "Natural Sound" A-450 (from 1979) which had the old JRC4558. Took it out and wanted to put the "natural sound" NE5532, but finished to swap it with an OP2604 I had in the same small bag. When I replaced the latter with the NE5532 I realized immediately that something was missing. Then I tried the 2604 back again and... BOOM! Now, it's there to stay!!

I have another Yamaha Natural Sound which has a few 8 and 9-pin Opamps:

IC102 is a 8-pin NJM2041S (CD Direct input)
IC103 and IC104 are a 9-pin C4570HA (Tone Control and Loudness/Balance, respect.)

Any chance to replace these with 2604s (Yamaha fans please don't curse me!)

 

[Mooly]

They can be replaced. If you look at the pinouts for a 9 pin SIL device you'll see that pins 9,8,7 and 6 allow a DIP pinout to drop in using pins 8,7,6 and 5 and the other side needs hard wiring. Or much neater... make a small PCB adapter.

 

[Karl vd Berg]

They can be replaced. If you look at the pinouts for a 9 pin SIL device you'll see that pins 9,8,7 and 6 allow a DIP pinout to drop in using pins 8,7,6 and 5 and the other side needs hard wiring. Or much neater... make a small PCB adapter.

Oh, I see that pin 9 is just another V+ like pin 1 is shown in the image below:

-----------------------

P.S.: I see that Bronw Dog has a nice DIP8 adapter for it. Maybe I can order a few of it.

Link: SO8/DIP8 to SIL Adapter (p/n 060301)

An externally hosted image should be here but it was not working when we last tested it.

 

[Mooly]

Adapters would be the neatest solution by far. If a jobs worth doing and all that.......

 

[Karl vd Berg]

Well, it's a really good and rare amp over here. I cannot take any risk with this one.

 

[akward]

NE5532 .. >>> OPA2134 or OPA2604!

 

[Mooly]

I'm finding lately that the LM4562 seems as good as it gets and that would be my current device of choice.

 

[akward]

I will try that, thx for mate

 

[Mooly]

You're welcome.

 

[akward]

=)

ever find a good replacement for a 5534?

heard the OPA134 would be ok!

what do you think?

 

[Mooly]

The 5534 needs external frequency compensation for gains lower than 3 and so its not always a straight swap... you need to be careful.

http://www.diyaudio.com/forums/anal...u-have-checked-see-its-stable-havent-you.html

 

[akward]

what would you recomend? It's for a G-SSL..

It's got 2 5532 and 4 5534 in original design.

 

[Mooly]

I would look at the LM4562 and the single version LME49710 but as I mentioned earlier, you can't be 100% sure until you test and measure. Look at post #1 in my link above and how the OPA604 was unexpectedly unstable. You would never have guessed that from just looking at the circuit. Test and measurement proved otherwise though.

 

[linuxguru]

Well, it's a really good and rare amp over here. I cannot take any risk with this one.

Nice amp - I have a Yamaha RX-300 Receiver from a similar era, with the same kind of controls and industrial design. Mine has extensive modifications and upgrades. The main problems I found were annular cracks on many solder joints, especially those with mechanical stress (connectors, controls, etc.), and bad contacts on the selector switches. Also a bit of noise on the potentiometers, but no show stopper.

The power amp section is fully discrete, so no opamp upgrade is needed. The phono section has an opamp, IIRC - I left it alone for now.

 

[Karl vd Berg]

I'm finding lately that the LM4562 seems as good as it gets and that would be my current device of choice.

I'll try it, too. Curious to "see" the stereo imaging/soundstage from it.

I'm still standing by the 2604. The 2134 is very good, but I like the 2604 a bit more.

Nice amp - I have a Yamaha RX-300 Receiver from a similar era, with the same kind of controls and industrial design. Mine has extensive modifications and upgrades. The main problems I found were annular cracks on many solder joints, especially those with mechanical stress (connectors, controls, etc.), and bad contacts on the selector switches. Also a bit of noise on the potentiometers, but no show stopper.

The power amp section is fully discrete, so no opamp upgrade is needed. The phono section has an opamp, IIRC - I left it alone for now.

A nice receiver indeed.

Actually the little can sound as good as the TOTL, includind the mighty RX-1130.