Anyway, I think I've found my next speakers! The Italian made "Indiana Line Tesi 260" (the "Musa 105" being a little too expensive). It's so new it's not even in shops yet. I heard the smaller, and less recent "Tesi 204" recently and it performed very well too (better balanced than that twice as expensive B&W DM686), though I prefer how this new model looks, and that it's bigger 🙂
The Tesi series uses chambered neodymium tweeters, mica injected polypropylene woofers...and has film caps in the tweeter crossover 😎
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Andrea,
I roll back to my LME49720HA and find it has a better overall balance in sound with different types of music.
Very noticeable with chinese music, more real to me.
I roll back to my LME49720HA and find it has a better overall balance in sound with different types of music.
Very noticeable with chinese music, more real to me.
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Originally Posted by Andrea
I suggested the AD845 above because it sounds good and numerically it'd go well with the OPA1611, as I don't believe that using the same opamp in multiple stages is a good idea (and numbers fully agree).
Hi Andrea,
This I don't understand. If you find the OPA1611 the best sounding opamp it's logical to replace all the opamps by this one in multiple stages (if possible). I can't imagine that a circuit with multiple opamps (like a preamp) sounds better with different opamps than with identical opamps.
Please give your comments.
Regards,
John
Originally Posted by Andrea
I suggested the AD845 above because it sounds good and numerically it'd go well with the OPA1611, as I don't believe that using the same opamp in multiple stages is a good idea (and numbers fully agree).
Hi Andrea,
This I don't understand. If you find the OPA1611 the best sounding opamp it's logical to replace all the opamps by this one in multiple stages (if possible). I can't imagine that a circuit with multiple opamps (like a preamp) sounds better with different opamps than with identical opamps.
Please give your comments.
Regards,
John
I don't know, they're different... I think the tonality of the OPA1611 is the more real. To me, the LME49720HA retains a certain emotionally detached character characteristic of National's chips, only somehow reduced in magnitude compared to the plastic version of the 49720; while the OPA1611 gets 'closer to the heart of the music'. That's why I'm sold on the OPA1611 🙂
Well I find that you can make a ranking of the best opamps to an extent; however in the real world, whenever several opamp stages are in the signal path, things get more complicated...and challenging 🙂
Since every opamp (every single audio component for that matter), however good it is overall, has a certain type of personality, repeating it can only cause the sound to become undesirably characterised... even just with 2 pieces of the same opamp being 'piped'.
The AD845 had struck me as being somewhat complementary to the OPA1611 with its rigorous tonal character and balance... yes, in and by itself it is a little less refined but... well, hard to explain... I just have my reasons to suggest trying the combination 😛😉
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Both my Rotel and Magnavox dual TDA1541A CDP have the same output stage, 1 dual opamp for I/V and buffer in one channel. Very difficult to try with different I/V and buffer opamps.
OPA1611 and LME49720HA is my best 2 so far.
Too bad LT1028ACN8 has no dual and there is no room for the 2 single DIP8 to dual converter in both unit.
OPA1611 and LME49720HA is my best 2 so far.
Too bad LT1028ACN8 has no dual and there is no room for the 2 single DIP8 to dual converter in both unit.
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In that case, what you'd want is precisely the opamp type that inherently colors the sound the least... no wonder you like those two best then 🙂
Since the LT1028 due to its electrical parameters makes a very good I/V chip seemingly, then I guess it would indeed be worth trying the CS8, which at least is more expensive (=better!?) than the CN8 🙂
use additional sockets are risers, use any means necessary..but try them, LT1028A leaves out of speech
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use additional sockets are risers, use any means necessary..but try them, LT1028A leaves out of speech
Well, really, the difference with the LT1028CS8 is quite subtle (if it even exists). Don't know about the CN8 (which is certainly cheaper than the CS8, for whatever reason), although I know well what majkel says about it being inferior to the ACN8 😉🙂
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All opamps alter the sound in some way = coloration. To either find the coloration you want, or to get an amp as neutral as possible, the way to go is to blend different opamps. It's very logical.
Very. 🙂 That's one of the great things about chips: you can couple different types easily; and, that way, you can tune a system to suit your taste (whether you call this practice seeking neutrality or seeking musicality 😉)
...because (by experience) I don't buy it that a discrete design would sound neutral (nor always appealing) instead. 🙂
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I tested with a NAD5425 CDP with MN6471M dac inside today with LME49720HA, LME49860, LM4562, OPA1642.
Very stange finding, sound is no better with the orginal NE5322N.
Very stange finding, sound is no better with the orginal NE5322N.
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MN6471M + NE5532N = 1234567, i.e. the first 7 numbers covered completely 🙂
MN6471M + LM4562 = 124567, not as good 🙂
The rest give an even worse result (most "musical" numbers missing).
Try the LME49723 (1234679) or the LME49725 (1245679).
😎MN6471M + NE5532N = 1234567, i.e. the first 7 numbers covered completely 🙂
MN6471M + LM4562 = 124567, not as good 🙂
The rest give an even worse result (most "musical" numbers missing).
Try the LME49723 (1234679) or the LME49725 (1245679).
Where did you get all these formulas
