I have a NAD 521BEE cdp and would like to explore what options are there for modding this with good benefits other than the standard Caps/Diode/opamp !
Thx !
Thx !
SOS Mu-Cop (mucop) ASM code issues
Hi everyone,
I'm new with microchip and I'm having some troubles sorting out what ever is worong with the mucop code. I have read most of the postings in this thread and I'm pretty sure it's something I'm doing wrong. If anyone would like to share a pre-assembled and known working hex file for the 16f877 I would greatly appreciate the help. That way I can trouble shoot my project rather than just plain shooting it.🙄
how many people have manage to get the Mucop functioning?
thanks everyone.
Hi everyone,
I'm new with microchip and I'm having some troubles sorting out what ever is worong with the mucop code. I have read most of the postings in this thread and I'm pretty sure it's something I'm doing wrong. If anyone would like to share a pre-assembled and known working hex file for the 16f877 I would greatly appreciate the help. That way I can trouble shoot my project rather than just plain shooting it.🙄
how many people have manage to get the Mucop functioning?
thanks everyone.
Have you already done down the cap/diode/opamp path?
I found the 521i / 521BEE much greater challenges to mod than Philips and Marantz players in the same budget range. While the Philips-based units have less regulation on various power supplies, I found that the "better" opamps, caps, diodes I put into the NAD very quickly changed the sound to the detriment of NAD's original voicing (too explicit and detailed without benefits of greater smoothness or bass). I was not keen on the fact that the 5V regulator is fed by the 12V reg with a zener in between.
I think NAD took a lot of effort to get the 52x / 54x (similar I believe) to sound the way they do, whereas the budget Philips have a simple effective design, compromised by cheap components and layout.
Removing the mute section helps. Attention to the dac power supply will get good returns too.
I found the 521i / 521BEE much greater challenges to mod than Philips and Marantz players in the same budget range. While the Philips-based units have less regulation on various power supplies, I found that the "better" opamps, caps, diodes I put into the NAD very quickly changed the sound to the detriment of NAD's original voicing (too explicit and detailed without benefits of greater smoothness or bass). I was not keen on the fact that the 5V regulator is fed by the 12V reg with a zener in between.
I think NAD took a lot of effort to get the 52x / 54x (similar I believe) to sound the way they do, whereas the budget Philips have a simple effective design, compromised by cheap components and layout.
Removing the mute section helps. Attention to the dac power supply will get good returns too.
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