Hi,
I agree on the concept of diminished returns, and think it takes on a logarithmic curve the less you understand the underlying function.... simply trying to fix what ain't broke by sticking bubblegum on it ... pretty much the same as slapping 100nF caps all over it. Odds are you'll just screw it up worse. Now if you have a little bit of understanding you can do your modding intelligently and expect good returns, which I trust so long as you stay out of realm of voodoo and stick to the engineering aspect you most likely will definitely hear a difference... and if you don't maybe you're deaf already?
Ex: Waste your effort tweaking the input stage with 100nF caps while the output stage makes everything on the board glow red hot from EMI.... will you hear those 100nF? I doubt it.
Chris
I agree on the concept of diminished returns, and think it takes on a logarithmic curve the less you understand the underlying function.... simply trying to fix what ain't broke by sticking bubblegum on it ... pretty much the same as slapping 100nF caps all over it. Odds are you'll just screw it up worse. Now if you have a little bit of understanding you can do your modding intelligently and expect good returns, which I trust so long as you stay out of realm of voodoo and stick to the engineering aspect you most likely will definitely hear a difference... and if you don't maybe you're deaf already?
Ex: Waste your effort tweaking the input stage with 100nF caps while the output stage makes everything on the board glow red hot from EMI.... will you hear those 100nF? I doubt it.
Chris
Depends.....
High frequency Op-amp PSRR can be both poor and assymetrical.
If the power supply is noisy then 100R/100nF networks at the supply pins can tidy things up quite a lot. Probably enough to hear a difference...
Of course a clean supply in the first place helps a lot.
DNA
High frequency Op-amp PSRR can be both poor and assymetrical.
If the power supply is noisy then 100R/100nF networks at the supply pins can tidy things up quite a lot. Probably enough to hear a difference...
Of course a clean supply in the first place helps a lot.
DNA
serengetiplains said:
Directly from the review: "Other quibbles? Just one. The 9 SEs still screw up my FM tuners. I heard that placing the amps far apart helps reduce tuner distortion, but it doesn't! How upset am I? I'm still buying the amps, so I guess not very. The problem must be inherent in their design."
Clearly the reviewer has no idea how a class d amp operates and that a lot of EMI (all the way up into to FM range!) is indicative of poor circuit board layout.
BWRX said:
I just can't bring myself to read it.. I can't. I know, I'll save it for when I need a good laugh.Gotta hand it to the market guys at Nuforce.
Start out with cheap, probably promise a huuuge markup to the dealers, maybe please the reviewers somehow...
Then start finding errors and admitting them, because you're on the "bleeding edge" of technology, and meanwhile increase the selling price (without actually increasing production cost all that much) to finally reach $4200(!)
Amazing commercial minds there - Bill Gates should take a look there to buy some of these guys out, could push a new windows version every 10 months instead of every 3 or 4 years, and up the price as well...
Start out with cheap, probably promise a huuuge markup to the dealers, maybe please the reviewers somehow...
Then start finding errors and admitting them, because you're on the "bleeding edge" of technology, and meanwhile increase the selling price (without actually increasing production cost all that much) to finally reach $4200(!)
Amazing commercial minds there - Bill Gates should take a look there to buy some of these guys out, could push a new windows version every 10 months instead of every 3 or 4 years, and up the price as well...
Yves Smolders said:
Ssshh!! Don't feed mister Evil himself with more faul ideas. He has plenty of those as it is.
Aren't those Nuforse reviews extraordinary ... like in ******* amazing... 'Oh look, my FM tuner locks up when I turn on the Nuforce. Cool! I gotta have one!'
And what about all that detail in the sound... maybe the 'detailfreaks' on this board should be putting a 30 parallel 0.33uF WIMA output cap board on their hypex units to enter audio nirvana... or maybe a few gold/silver 1uF Mundorf caps instead. Come on you... try it...
You know it's gonna look really cool 
serengetiplains said:
Hmm, must agree that is a pretty nice cabinet to put stuff in. I am looking for such ones to put my UcD180 modules in
But it appears to me that they are huge expensive looking at the price tag of these v9 SE versions 🙁Cheers 😀
Pjotr said:
Hmm, must agree that is a pretty nice cabinet to put stuff in. I am looking for such ones to put my UcD180 modules in
Cheers 😀
Now that, that was just low.
You know they went with that dark color to mask discoloration from inductive heating.
Version 10 may be available in your choice of barbecue paint, and the reviewers will rave about its stealthyness. Hmmmm, I declare a stealth EMI absorbing case public domain!
Hi classd4sure,
I seriously don’t understand al that buzz about EMI. That is a fundamental property of these amps to keep interest going. Look at the artwork of the common mode output choke: For sure they will do it that way in all next versions, there must be some magic in …
😉
I seriously don’t understand al that buzz about EMI. That is a fundamental property of these amps to keep interest going. Look at the artwork of the common mode output choke: For sure they will do it that way in all next versions, there must be some magic in …
😉
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