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Chip Amps Amplifiers based on integrated circuits

Has anyone ever had experience with MUSE opamps?
Has anyone ever had experience with MUSE opamps?
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Old 9th November 2012, 05:17 PM   #11
wahab is offline wahab  Algeria
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Originally Posted by cbdb View Post
$50 each!!!! I wonder what generic opamp they relabelled.
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......
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Old 9th November 2012, 05:45 PM   #12
sq225917 is offline sq225917  United Kingdom
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Send a message via MSN to sq225917 Has anyone ever had experience with MUSE opamps?
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.
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Old 9th November 2012, 05:54 PM   #13
MagicBox is offline MagicBox  Netherlands
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Originally Posted by wahab View Post
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
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..
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Old 9th November 2012, 06:06 PM   #14
Boscoe is offline Boscoe  United Kingdom
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Never in a million years will someone be able to tell this op amp apart from an NE5532.
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Old 9th November 2012, 08:47 PM   #15
cbdb is offline cbdb  Canada
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Originally Posted by Boscoe View Post
Never in a million years will someone be able to tell this op amp apart from an NE5532.
Until they look at there bank account.
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Old 9th November 2012, 09:10 PM   #16
wahab is offline wahab  Algeria
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Originally Posted by Boscoe View Post
Never in a million years will someone be able to tell this op amp apart from an NE5532.
Too much exageration kill the exageration....
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Old 9th November 2012, 09:30 PM   #17
cotdt is offline cotdt  United States
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Quote:
Originally Posted by Boscoe View Post
Never in a million years will someone be able to tell this op amp apart from an NE5532.
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.
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Old 9th November 2012, 09:31 PM   #18
cotdt is offline cotdt  United States
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Quote:
Originally Posted by sq225917 View Post
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.
Most circuits use the implementation in the datasheets/application notes. If it's a bad implementation, they should not publish such circuits.
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Old 10th November 2012, 12:24 AM   #19
davidsrsb is offline davidsrsb  Malaysia
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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
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Old 10th November 2012, 07:09 AM   #20
Ian Finch is offline Ian Finch  Australia
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Default 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.
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