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In Reply to: RE: Help by finding the right KNOB'S for Nad 302 Amp. posted by shaby on February 07, 2011 at 13:16:18
I go away for a few months, put the system in storage, try not to think about DBTs or a mixed salad of logical fallacies, and this is what I return to? What have you guys been doing?? Where's Pat D? Where's Don? Where's Tubeguy? Isn't there ANYTHING to fight about?
Follow Ups:
Pat D is busy exposing himself on the Corner. Critics that is.
...regards...tr
So if Critics becomes the new Prophead, why would any of us need critics if everything sounds the same????
this isnt a deep subject.
...regards...tr
The audible/measurable differences between factory stock knobs and high-priced after-market knobs of exotic hardwood vs. machined brass vs. aluminum vs. etc. When I replaced my stock knobs with cryogenically treated ebony ones, the improvement was jaw-dropping: veils lifted, backgrounds became blacker, and all the other audiophile cliches. Even my neighbor's granny heard the difference, from across the street!
...everything sounds the same.
But I never said that!
But that's what you mean!
No, it isn't!
Yes, it is!
I need proof!
You need ears!
DBT...mrfgh...data... specs...glub glub... burp...
MTRY?????
...regards...tr
Everything sounds the same until you provide 1000 ABX tests with Tom Nousaine as proctor that definitively prove otherwise!
Oh, and don't forget to have those tests peer reviewed and published!
-t
Everyone's drifted to Tweakers and now the natives are trying to figure out how to get rid of the riff-raff so they can stay focused on the effects of secret codes stamped on the edges of power plug pins.
I just saw your post because I was verifying that this forum was still dead.
Rick
.
Good one, Rick....
Apparently it is no fun to stick to technical details, since very few have any understanding of them, or the "scientific" principles.....
Stu
Hi Stu,
"Apparently it is no fun to stick to technical details, since very few have any understanding of them, or the "scientific" principles....."
I suppose that's a good deal of it. Probably the rest is not having the interest or inclination. Or maybe not having the equipment and time. I know once I'm contented with the performance my interest in investigating further tends to wain. With only a single instance and user the risk from not fully understanding what's going on is low and consists only of possibly settling for a sub-optimal solution.
On the other hand Tweakers seems to be heading towards institutionalizing alchemy and condemning science and engineering and heaven forbid, measurements. I think part of that is just the problem you mentioned above, part is not wanting to mess with it, and part is believing silly assertions that DBT is the very embodiment of science so science is bad.
I haven't been following your adding batteries to the ground lately, have you found an especially good approach yet that works across components or systems? I messed around with a couple of 9V transistor radio batteries in series and parallel and could discern no effect whatever so I'm stuck. I think it would take a particularly clear-cut and controllable case to have any hope of chasing it to ground, as it were...
Regards, Rick
I've notices that with solid state gear, the effect is lessened. I can hear the tightening up of the bass line ( Marantz surround sound receiver and mirage bookshelf mains with an Energy sub), but real increase in dynamics.Transient attacks are a bit crisper however. I just purchased a 6Volt gel battery and will be experimenting with that. I suspect that since transistors are basically current amplifiers, they may need a bit more current ( supposedly). Try it on the preamp first.
A friend installed the battery on his Grado SR 60's which he uses on his mini Ipod. He claims the difference is staggering, almost analog like, although the battery is just as big if not bigger than his ipod.
Stu
Edits: 02/09/11
Hmmmmmmmmm
Hey have you tried putting some low ESR, lo L caps across the batteries? The ones aimed at switchers should be able to make a 9V square have a lower Zout than a gel-cell for the amount of charge that can flow even at HF for this sort of setup.
I've got caps laying around from doing some switchers a few years ago maybe I'll try them on the transistor radio batteries and see if it makes any difference. At this stage of the game logic is out the window since I don't have a clue what optimum would be.
I only use solid state so perhaps it's just too numb to the effect. TBD.
Rick
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