The audiophile community has given these opamps great reviews, and I was wondering if anyone here has ever tried them:
MUSES01 NJR | MUSES01-ND | DigiKey
The datasheet specs look similar to every other opamp. I'm curious what all the hype is about.
MUSES01 NJR | MUSES01-ND | DigiKey
The datasheet specs look similar to every other opamp. I'm curious what all the hype is about.
It seems to be designed specifically for audio. I'm thinking of using it for input stage of an amp. A friend in another country said that it is a great value for the price.
Made by JRC who make opamps used everywhere
MUSES Official Website
I guess they had to do something to compete with Burr-Brown from TI 🙂
MUSES Official Website
I guess they had to do something to compete with Burr-Brown from TI 🙂
I would want some better detail and explanation as to how this opamp gained "great reviews" and the bona fides of who wrote them.
Some products with anonymous reviews solicited from websites, turn out to be trash with the secret ingredients of packaging, copycat
cool brand name and good, old fashioned BS.
Given the ease of swapping in a DIP8 socket and making no other circuit changes in say, a line level amplifier, what could we expect it
to do for audio, if it can only add its $50 worth of relatively high THD?
Some products with anonymous reviews solicited from websites, turn out to be trash with the secret ingredients of packaging, copycat
cool brand name and good, old fashioned BS.
Given the ease of swapping in a DIP8 socket and making no other circuit changes in say, a line level amplifier, what could we expect it
to do for audio, if it can only add its $50 worth of relatively high THD?
The 0.4ppm THD is specified at 1Khz and gain of 1 , not exceptionnal.
At higher frequencies it s inferior to a NE5532 wich has also half the noise
of this JRC wonder....
http://semicon.njr.co.jp/eng/PDF/MUSES8920_E.pdf
At higher frequencies it s inferior to a NE5532 wich has also half the noise
of this JRC wonder....
http://semicon.njr.co.jp/eng/PDF/MUSES8920_E.pdf
What I would like is some schematic.
You can fool anybody with things, but the schematic will tell if there is something good.
You can fool anybody with things, but the schematic will tell if there is something good.
An opamp like LM4562 does have better specs. However, they sound bright and metallic compared to other opamps and discrete circuits when used for voltage amplification. I'm most interested in the sound.
Stereophile and 6moons gave it rave reviews of the opamp as part of a $400 DAC upgrade, even though the opamps themselves are much cheaper. They said it was a great value.
I dont give much truck to the opamp fetishism thing audiophiles have. For me, the NE5532 and OPA2134 (for FET input) are perfectly transparent, implemented correctly.
Dont know but given the low diaphony i suspect that there is two
separate chips inside.
They could even have used electricaly parraleled dual op amp chips ,
a chip per op amp with all the advantages of parralelisation , more
gain , less noise and higher output current , 100mA......😀
I have also heard Lm4562's sound bright and forward. i've also heard them sound open, sweet and dynamic. It's all down to implementation.
I know what you mean, so often specs look nice but then you realize it's at 1K and when you look from 10K and up it worsens severely..
Depends how the opamp is used. As a buffer, the NE5532 actually has superior specs. Likely no audible difference. As a voltage amplifier, there is a definite difference between NE5532 and other opamps such as LM4562. If I can tell the difference in a blind test with you as the operator, do I get a prize? I would happily prove to you what I already know so long as I am paid for my time.
Most circuits use the implementation in the datasheets/application notes. If it's a bad implementation, they should not publish such circuits.
They show distortion at 20 Hz (good so no low frequency thermal "memory" problems) and 20 kHz (still pretty good)
Power supply rejection is excellent
Power supply rejection is excellent
Reviews
So, all the inaudible specified nasties have been checked and we predict it will be indistinguishable in use,
so how do the incredibly perceptive reviewers at Six Moons find it to be superior to others?
Maybe by inferior implementations? After all, just dropping a JFET input amp into BJT's dip socket will usually
cause some audible disturbance, yet this is an accepted methodology for "Hi-end" sound dabblers and,
I would suggest, non-technical reviewers. 😉
So, all the inaudible specified nasties have been checked and we predict it will be indistinguishable in use,
so how do the incredibly perceptive reviewers at Six Moons find it to be superior to others?
Maybe by inferior implementations? After all, just dropping a JFET input amp into BJT's dip socket will usually
cause some audible disturbance, yet this is an accepted methodology for "Hi-end" sound dabblers and,
I would suggest, non-technical reviewers. 😉