And even if I weren't - each opamp has its own "absolute" type & quality of sound, whether you like the idea or not. You can make it slightly better or slightly worse than the average performance it delivers by optimising the circuit around it... but... an AD845KN will never catch up with an LT1028; a OPA627 will never sound natural per se (it'll only possibly do so when paired with other active circuits that tend to balance its 'unmusical' coloration); an OPA211 will never quite be convincing (though it sounded very nice in my cmoy at least)... etc. etc.
Last edited:
Hmm, I'm not sure, perhaps just for extending the temperature range? I think the ceramic package is mostly intended for military
applications.
Hi All,
apparently the old now very rare Signetics original offerings for NE5532 & 4, is quite differently sounding beast's...
Together with other colleges, I have some experience with varying manufactures chips and sound of the same... Some good and most others less so... Bit of a minefield really and you just have to do listening test with your circuit, between the within reason (and possible objectives IE. cost, availability etc.) obtainable chip offerings for the application.
Kind regards
a1greatdane
apparently the old now very rare Signetics original offerings for NE5532 & 4, is quite differently sounding beast's...
Together with other colleges, I have some experience with varying manufactures chips and sound of the same... Some good and most others less so... Bit of a minefield really and you just have to do listening test with your circuit, between the within reason (and possible objectives IE. cost, availability etc.) obtainable chip offerings for the application.
Kind regards
a1greatdane
Hi All,
apparently the old now very rare Signetics original offerings for NE5532 & 4, is quite differently sounding beast's...
Together with other colleges, I have some experience with varying manufactures chips and sound of the same... Some good and most others less so... Bit of a minefield really and you just have to do listening test with your circuit, between the within reason (and possible objectives IE. cost, availability etc.) obtainable chip offerings for the application.
Kind regards
a1greatdane
Yuck, the Signetics may be better, but... where do you find them? At this point one would rather go with something more (may I say) modern period. As I've been saying, my favorite dual is the LME49723, despite it being cheaper and on paper (but only there) less brilliant than your popular LM4562 - LME49720 - LME49860.
1-Higher temperature, common numbers are 125C for ceramic and 70C for plastic.
2-Better specs, lower offset.
1+2=> MIL
Dear Andrea,
I have tried to get through all the post over the last 2 days and find Your exclamations on the LT1028 commendable, but I also find it a bit pusseling that You don't seem to have tried LT1115? Or have I missed that?
I believe it comes very highly recommended by some of the absolute 'top brass' in the business (is it John Curl?)
If the OPA211 was sort of almost there, then what about the OPA1611?? And the duals? Supposedly with some of the DC parameters a bit relaxed (less good for high precision instrumentation, but maybe good for sound?).
Kind regards
a1greatdane
I have tried to get through all the post over the last 2 days and find Your exclamations on the LT1028 commendable, but I also find it a bit pusseling that You don't seem to have tried LT1115? Or have I missed that?
I believe it comes very highly recommended by some of the absolute 'top brass' in the business (is it John Curl?)
If the OPA211 was sort of almost there, then what about the OPA1611?? And the duals? Supposedly with some of the DC parameters a bit relaxed (less good for high precision instrumentation, but maybe good for sound?).
Kind regards
a1greatdane
Dear Andrea,
I appreciate You stance, but I have actually heard the difference on various NE's and trust me - the spread is very wide! And Yes the Signetics is very, very good and very musical - and who knows? You might even like it to? (if only it could find it's way to Your 'ivory tower' I suppose...).
Cheers
a1greatdane
I appreciate You stance, but I have actually heard the difference on various NE's and trust me - the spread is very wide! And Yes the Signetics is very, very good and very musical - and who knows? You might even like it to? (if only it could find it's way to Your 'ivory tower' I suppose...).
Cheers
a1greatdane
Dear Andrea,
I appreciate You stance, but I have actually heard the difference on various NE's and trust me - the spread is very wide! And Yes the Signetics is very, very good and very musical - and who knows? You might even like it to? (if only it could find it's way to Your 'ivory tower' I suppose...).
Cheers
a1greatdane
I think I could indeed like it.
Well, the difference is that should only come in one flavor, the JRC flavor. I think.and what about the 4580 mistery?? some top notch equipment runs them exclusively, and they are great to drive headphones
Not only the 4580, but the 4570 too... there's one in my integrated amp (it does the preamp), and I love its sound for the modest price. I even compared it to a Yamaha integrated that costs over twice, and presumably is all discrete... I liked mine more.
haha don't say that
I'm about to quit the headphones out of my soundcard(based on a high gain JRC4580) to use this killer headphones amp: Burson HA-160 Headphone Amplifier
the difference between the lineout to my headphones and the JRC4580 output is exactly as they show on this link if you click on "TechNotes": Auzentech, Inc. X-Fi Home Theater HD : World First soundcards for Music, HTPC, and Gaming.
everything's perfectly focused, the lineout sounds like jelly beans in comparison.
I also tried two NJM4580D as AK4396 LPF, but well, too colored to my taste I think...LT1124ACN8 kills them
LT1124 was recommended by a Chinese guy who makes USB DAC's and several ppl rave about it if you look on google, each op-amp has a sound of its own...I don't really get why that AD op-amps designer talks to us like complete retards, but well nvm
I'm about to quit the headphones out of my soundcard(based on a high gain JRC4580) to use this killer headphones amp: Burson HA-160 Headphone Amplifier
the difference between the lineout to my headphones and the JRC4580 output is exactly as they show on this link if you click on "TechNotes": Auzentech, Inc. X-Fi Home Theater HD : World First soundcards for Music, HTPC, and Gaming.
An externally hosted image should be here but it was not working when we last tested it.
everything's perfectly focused, the lineout sounds like jelly beans in comparison.
I also tried two NJM4580D as AK4396 LPF, but well, too colored to my taste I think...LT1124ACN8 kills them
LT1124 was recommended by a Chinese guy who makes USB DAC's and several ppl rave about it if you look on google, each op-amp has a sound of its own...I don't really get why that AD op-amps designer talks to us like complete retards, but well nvm
that's the MSRP, once you negotiate it gets a lot lower
well, so far their dual discrete op-amps has really thrown me up the roof PRAT-wise, you can look for "burson" on audiogon, several ppl who used them also rave just like me. It sounds too awesome to be put into words.
like my dad used to say "the higher the fly, the smaller you appear to the ppl who watch you from the ground" ...that's how their op-amp makes me feel
well, so far their dual discrete op-amps has really thrown me up the roof PRAT-wise, you can look for "burson" on audiogon, several ppl who used them also rave just like me. It sounds too awesome to be put into words.
like my dad used to say "the higher the fly, the smaller you appear to the ppl who watch you from the ground" ...that's how their op-amp makes me feel
Last edited:
The link to the Azuentech sound card is childish as an argument. They are buffering the outputs of the IC OpAmp's to compensate for the low and variable impedance of the headphones. It doesn't "prove" that IC sounds worse that a complete discrete stage. If you look ate their pic you will see the IC OpAmp there.
An externally hosted image should be here but it was not working when we last tested it.
