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Old 23rd November 2012, 09:37 AM   #41
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Default 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
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Old 23rd November 2012, 09:54 AM   #42
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I'd suggest the HA7-5222 (which is obsolete but you may find enough on the secondary market) with the proviso its more power-hungry than the 5532 by a factor of about 2.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.
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Old 15th October 2013, 06:44 PM   #43
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Quote:
Originally Posted by Mooly View Post
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

Quote:
Originally Posted by Pete Fleming View Post
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!
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Old 15th October 2013, 06:49 PM   #44
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Pleased you like it and its still one of my favourites.
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Old 15th October 2013, 07:10 PM   #45
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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)
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Old 15th October 2013, 08:54 PM   #46
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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!)
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Old 16th October 2013, 06:38 AM   #47
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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.
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Old 16th October 2013, 09:05 AM   #48
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Originally Posted by Mooly View Post
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:

Click the image to open in full size.

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

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)

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Old 16th October 2013, 10:14 AM   #49
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Adapters would be the neatest solution by far. If a jobs worth doing and all that.......
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Old 16th October 2013, 01:17 PM   #50
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Well, it's a really good and rare amp over here. I cannot take any risk with this one.

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