The Opamp thread

[Mad Max]

1363 is not bass-shy in my gear, also its lack of articulation has been bugging me.
 
Quote:

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Haven't tried ADA4627-1.  ADA4898-1 didn't wow me; however, looking at the data sheet, it may take an optimized circuit for it to perform as designed (very low impedance).

Give 4627-1 a try, You may have better luck with it than somebody.

 

[Mad Max]

*double post*

 

[leeperry]

1363 was sounding way too colored on my Prodigy HD2 as final buffer..hard to bear for more than a few hours. It works better as DAC LPF and from a clean PSU(due to its low PSRR), and also on a genuine browndog....but when it does, oh my oh my

 

[G.Trenchev]

Just got my OPA2134's.Impressions:
-Almost no tonal difference to NE5534
-Better separation and detail
-Brighter highs
-Soundstage a bit wider
 
Much better overall,but not as much as the price(5 times more expensive vs two NE5534)
Ordered OPA134 on sunday

 

[ROBSCIX]

 
Quote:

Just got my OPA2134's.Impressions:
-Almost no tonal difference to NE5534
-Better separation and detail
-Brighter highs
-Soundstage a bit wider
 
Much better overall,but not as much as the price(5 times more expensive vs two NE5534)
Ordered OPA134 on sunday

Either of those opamps are considered cheap from a price standpoint.  The 5532 is one of the cheapest so 5 times more is still not that much.

 

[G.Trenchev]

OK,anybody else finding OPA2134 too warm ?

 

[Spacehead]

Quote:

OK,anybody else finding OPA2134 too warm ?

It is loose smooth and warm. How you would like it to sound?

 

[G.Trenchev]

Well,I'm not sure really...I really like the slow,loose and detailed sound(that's what I wanted).It is great for classic and jazz.I just find the bass too warm and sweet to my taste.It has great punch and detail,but I would like more "metallic" feeling.

 

[leeperry]

those 2/134 chips are a waste of time and money...some guidelines on the chips to try: http://www.head-fi.org/forums/f6/audio-gd-discrete-op-amps-reviewed-OPA-earth-OPA-moon-OPA-sun-v-2-a-397691/
 
the highest grade of the 132/134 family is OPA132U, try that instead...if you really must

 

[ROBSCIX]

Quote:

Well,I'm not sure really...I really like the slow,loose and detailed sound(that's what I wanted).It is great for classic and jazz.I just find the bass too warm and sweet to my taste.It has great punch and detail,but I would like more "metallic" feeling.

The OPA2134 have what people call the "Burr Brown" sound. sonic traits that come through on alomt all units from the burr brown line up.
Try the OPA2107....It may give you what you are after.

 

[12Bass]

Or maybe OPA2604?
 
Personally, I don't find the newer TI/BB parts (OPA211/1611/827/1641) to sound much like the older ones (OPA132/34/604).

 

[G.Trenchev]

Thanks,I'll try these.
No urgent need actually,I got into BB sound and I like it now.While 5534 was very neutral-even amping an amp with the amp adds nothing to the sound(it's "invisible"),it was somewhat compressed sounding.2134 is open and warm,musical.Somehow it retrieves the details and adds a warm touch.It's a true Hi-Fi opamp,but it's not neutral,you can always tell it's there by the significant sound signature.I thought It won't do rock,but I was wrong.It molds perfectly with DP's Motorhead,sounding very fun and energetic.Also great for classical and jazz.That's it.
I can spend a night rolling opamps,and there's so many.Great hobby

 

[Mad Max]

I think you'll love 1611 and 1641.
 
My favorite BB so far is THS4081.

 

[leeperry]

did some more rolling

 
-LM6171AIM: very very close to 1363, just less percussive and more boring
 
-AD825: the same harsh/metallic/agressive upper mids as AD845...worthless!
 
-LT1115: the SS is clearly different from 1028AC, and it's also far less bassy...but 1363 has more precise/tighter low end bass.
 
now comparing 1363CS8 and 1363CN8

 
PS: on this song(in FLAC), 1363 puts the other chips to shame: http://www.google.com/search?q=Big%20Bang%20-%20Speak%20Low&tbs=vid:1

 

[ROBSCIX]

Quote:

Thanks,I'll try these.
No urgent need actually,I got into BB sound and I like it now.While 5534 was very neutral-even amping an amp with the amp adds nothing to the sound(it's "invisible"),it was somewhat compressed sounding.2134 is open and warm,musical.Somehow it retrieves the details and adds a warm touch.It's a true Hi-Fi opamp,but it's not neutral,you can always tell it's there by the significant sound signature.I thought It won't do rock,but I was wrong.It molds perfectly with DP's Motorhead,sounding very fun and energetic.Also great for classical and jazz.That's it.
I can spend a night rolling opamps,and there's so many.Great hobby

 
There are many aorudn here that do this as a hobby, some been in this much longer then others.  When you change out an opamp just remember to give yourself a chance to get used to the new signatures.  There are much better opamps out there then the OPA2134 but it is a resonable place to start...  Have fun.