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LME49710 vs OPA627s ? - Page 2

post #16 of 43
Thread Starter 
LME49710 is the single version of the LME49720 which is to me the same as the LM4562.
post #17 of 43
LT1028 is more transparent than the LT1363, and I've learnt how to make it stable at gain of 1, even without additional capacitors. it's described in the datasheet.
post #18 of 43
Thread Starter 
Quote:
Originally Posted by majkel View Post
LT1028 is more transparent than the LT1363, and I've learnt how to make it stable at gain of 1, even without additional capacitors. it's described in the datasheet.
Heard LT1028 and LME49710 on same CDP (tweaked philips) , I prefer the LME.
post #19 of 43
Thread Starter 
Not precise enough, noisier, less realistic to me.

Colors and tastes...
post #20 of 43
RFL - try AD825. I liked the LT1363 for a couple of days but it's too blurry and congested for me. Too much warmness. AD825 after a year still amazes me sometimes. It's a pleasure oriented op amp.
post #21 of 43
Thread Starter 
Quote:
Originally Posted by RFL View Post
Perhaps you haven't used it correctly. The LT1028 has such a low (lower than that of the LME49720) specified noise voltage that you would have bionic hearing


Regarding tonality, the LME49720 is cold-blue whereas the LT1364 is warm-yellow. I like warm colors. The LT1364 absolutely doesn't lack transparency, but it's not boringly clynical which I like for sure. They actually work very well together, one after the other in the audio path.
I was mostly talking about the LT1364. I know LT1028 is one of the lowest in the market.

I have better details with the LME49710, difference is bigger with my 24-192 DAC than with CDP (use 2X LME 49710 and 2X LT1028 on a brown dog adaptater).

Heard the AD825 too, not woth a double 627AP which is under the LME49710 to me.
post #22 of 43
Is there a reason to use single op-amps instead of duals? For exemple 2x LME49710 on brown dog adapter instead of LME49720.
post #23 of 43
LT1360 looks like a lower biased and therefore slower LT1363, so it probably sounds worse overall. Actually, different op amps work in different applications better. Let's better not make a general op amp discussion of this thread because there is lots of other existing.
post #24 of 43
I have a proper supply decoupling and I'm waiting for the LT1360 and LT1357 samples actually. IIRC, the LT1469 has been ordered as well.
Quote:
Let's not be too rigid, too. Opinions evolve.
I was saying you can revive other threads where you can find interesting assumptions about AD8599, AD797, AD8021 and others. For instance, I prefer the AD8599 to the LT1364, both are warm but LT1364 hasn't got top notch trebles. AD8022 is another very good dual chip with no single equivalent, etc.
post #25 of 43
Thread Starter 
Quote:
Originally Posted by Henmyr View Post
Is there a reason to use single op-amps instead of duals? For exemple 2x LME49710 on brown dog adapter instead of LME49720.
Less offset, less noise and less bias.
post #26 of 43
hey here, I'm looking for OPAs for my prodigy HD2, i'm using x3 LM4562 for now, instead of the x3 5532 on the original board, it's way better, really, but, i'm looking for something else, the same 'power' but with better mids and lows, voices sounds very cold and distant, I think i'm gonna buy the LT1364,
my questions to you OPA experts is, will I need 3 of them ?

And, are the :
"LT1364CN8#PBF Dual 6mA 70MHz 1000V/uSec OA PDIP"
from the Linear Technology website the ones I will need ?
post #27 of 43
Thank you RFL, I need DIP, so, I will buy the CN8, three of them, $4.58 each, I can't go wrong.
post #28 of 43
The best PROVEN combination for Prodigy HD2 is 2x OPA2604 + AD8022, period. I know, the guys haven't tried the LT1364 but I'm still not expecting it to be better. Cascading the same op amps can't produce best results as the same sonic effects get emphasized, instead of some sonic compensation and synergy.
post #29 of 43
Hello deug,

I like the LMs too. Haven't compared them to OPA627s, but have done so with LT1364s where the LMs are clearly more transparent.
post #30 of 43
OK, thank you for your advice majkel, I Already heard OPA2604, it was with 2x OPA2134, I still prefer 3x LM4562,
considering I never heard the 2xOPA2604+AD8022 combination, plus , considering I caught the Head-fiing virus, I will plan to buy 3x8022, 3x2604, 3x1364, I think it will be LT1364 at first.

PS : sorry for this out of thread Parenthesis
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