I have upgraded my UCD400 from HG to HXR, and would say yes!, HXR is worth it.
HG sounds very good by themselves, and I found it hard to believe HXR could do much good.
But the difference is quite clear. The high frequency is more clear and detailed, but the biggest difference is in microdynamics, and perspective.
On my system it made an amazing difference to the perspective, suddenly I could "look" into the music, and place musicians much more precisely than before. And small details of every instrument stand more clear.
So I would say, go for HXR.
HG sounds very good by themselves, and I found it hard to believe HXR could do much good.
But the difference is quite clear. The high frequency is more clear and detailed, but the biggest difference is in microdynamics, and perspective.
On my system it made an amazing difference to the perspective, suddenly I could "look" into the music, and place musicians much more precisely than before. And small details of every instrument stand more clear.
So I would say, go for HXR.
sorry, nfb is negative feedback (i often see this abbreviation in this forum)
I see that the opamp is lm4562 which is very good .This opamp works with a power supply from +-2,5v to 17v and has a psrr of 120db. How can a better regulator make such difference in sound like some people wrote upper?
I see that the opamp is lm4562 which is very good .This opamp works with a power supply from +-2,5v to 17v and has a psrr of 120db. How can a better regulator make such difference in sound like some people wrote upper?
PSRR in op-amps real life is not so straightforward as bare numbers would suggest. More important for op-amp performance is output impendance of voltage regulator which should be low and flat throughout the audible range.
Fancy, low-ESR capacitors impendance ringing or vreg's output impedance variations in higher frequencies of audio band immediately manifest themselves as sound colorations which are related to bad rep of "op-amp sound". HxR is worth upgrading, my buffers with OPA1612 are powered with HxR.
Fancy, low-ESR capacitors impendance ringing or vreg's output impedance variations in higher frequencies of audio band immediately manifest themselves as sound colorations which are related to bad rep of "op-amp sound". HxR is worth upgrading, my buffers with OPA1612 are powered with HxR.
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