The Opamp thread

[leeperry]

yeah, thanks, I saw you mentioning this one...but it's only available in funky packages?! : Precision Amplifiers - Low Noise - OPA2211A - TI.com

and I read you didn't like the OP275? AD advised me to try it.

anyway, I love the clear trebles on the 49720NA, maybe I'll just add some crazy EQ in the low end to make it give

 

[Cynips]

Quote:

Originally Posted by majkel /img/forum/go_quote.gif I rate the LME49860 higher than the THS4032. They are similar but the last one simplifies tonality a small bit. I still think the LME49860 is my favorite dual op-amp. Not so thick and smeary as the LM4562 and not so bland as the LME49720.

Are you talking 49720NA here? And in what setup have you tried out these opamps?


BTW, I got my LT1358's in the mail today, but I still want to get a pair of adapters for the HA's. Anyone know if buying from audioupgrades.co.uk is the cheapest way of getting hold of TO-99 to 8 pin DIP adapters when you, as I do, live in Sweden? As good as the HA's sound on my setup I find it more than likely that I will want to reinstall them after checking out other opamps. If nothing else for the sake of further comparison.

 

[SpudHarris]

You will probably get them here. Audioupgardes distribute the Cimarron Stuff so buying direct could possibly be cheaper.

 

[12Bass]

Quote:

Originally Posted by leeperry /img/forum/go_quote.gif yeah, thanks, I saw you mentioning this one...but it's only available in funky packages?! : Precision Amplifiers - Low Noise - OPA2211A - TI.com and I read you didn't like the OP275? AD advised me to try it. anyway, I love the clear trebles on the 49720NA, maybe I'll just add some crazy EQ in the low end to make it give

IMO, the OPA2211A is a bit clearer than the LME part, and more organic-sounding too. Many of the modern high performance opamps are not available in DIP, so most of us employ SOIC -> DIP adapters. OP275 was well-regarded in the 90s, but not so much today.

 

[majkel]

Quote:

Originally Posted by Cynips /img/forum/go_quote.gif Are you talking 49720NA here? And in what setup have you tried out these opamps?

No, the MA version. The platform was the DAC used for the review in my signature. Trying the old school OP275 is a waste of time and money.

 

[SpudHarris]

Just found out some 49710's in my ''odds and sods'' chips. I only ever tried them in a cmoy and that was quite some time ago (before I got any quality amps). If my memory serves me well I found them to be a little sterile / metalic, but like I said that wasn't in a quality circuit.

I'm going to give them a try in the P3+ this evening.

 

[leeperry]

oh my, the bass is awesome on the 2111

nothing I've ever heard from the LM/LME serie

and the SS is also pretty damn wide! sound's very detailed, and the spatial placement is far less messy than on the LM/LME. you can almost pin-point their respective locations.

hopefully its sound signature won't change after burn-in, so far I <3 it...even the trebles are very detailed and not harsh like the LM/LME...it just sounds very impressive so far!

PS: I'm gonna buy a Chinese t-amp that's got a 4580, and put one of these babies instead...my dub plates are not gonna be smokin'

 

[majkel]

I've got the OPA2111KP in my repository but I could let it go, as well as many other op-amps. It's surely better than the similar OPA2107.

 

[leeperry]

anyway, one of my test tracks is "The Stranglers - Golden Brown"...and it sounds far more natural that it ever did on the LM/LME, it's pretty clear that they were pushing the top mids and made the harpsichord sound wonky as hell.

 

[SpudHarris]

Quote:

Originally Posted by majkel /img/forum/go_quote.gif I've got the OPA2111KP in my repository but I could let it go, as well as many other op-amps. It's surely better than the similar OPA2107.

The OPA2111 is the dual version of the OPA211 isn't it? Just goes to show how subjective this subject is because out of the OPA211 and OPA2107 I would take the OPA2107 every time.

 

[majkel]

No, OPA2111 = 2x OPA111.

 

[SpudHarris]

Ah..not tried the OPA111 or OPA2111 yet. Thanks.

Wow they're quite expensive, especially the ''KP''. How much do you want for it?

 

[12Bass]

Quote:

Originally Posted by SpudHarris /img/forum/go_quote.gif The OPA2111 is the dual version of the OPA211 isn't it? Just goes to show how subjective this subject is because out of the OPA211 and OPA2107 I would take the OPA2107 every time.

Not me.....

Found the OPA2107 lacking, compressed or something, from what I recall - fairly disappointed with it especially considering the high cost and all of the accolades. IMO, the more modern OPA211/2211A are in a different league - clearer, lower distortion, and more natural-sounding. Not sure if I'd even consider the OPA2107 better than the OPA2132. I'd take OP827 over those two if I needed FET input.

 

[SpudHarris]

Like I said ''Subjective''.

No OPA2211 on Farnell? But I wouldn't mind a look at the OPA2111KP. They have the OPA111's but they are TO-99 only and VERY expensive.

Anyone want to part with a 2111KP - majkel??

 

[leeperry]

it takes time to get used to the "neutral" mids on the 2111, the LM/LME were putting it up the roof in comparison

but man, the bass sounds so friggin' good

well TI gives away the 2111 for 100% free....except if you have high level ethics, I don't see any problem here...and they ship fast as hell!