• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Power cord replacement

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Sy wrote:

If there IS a real difference, then you have some power supply problems that you ought to fix.

That proclamation from on high is based on quite a few assumptions, one of which is that we have a perfect understanding of the physics involved in the conversion of analogue or digital data into auditory stimuli.

It always troubles me when people think they understand something perfectly.
 
mach1 said:
That proclamation from on high is based on quite a few assumptions, one of which is that we have a perfect understanding of the physics involved in the conversion of analogue or digital data into auditory stimuli.

After some light relief in foreign language rather than foreign thinking in normal language (a stimulating change!), back to the subject here ....

as well as back yet again to a sine qua non that constantly begs repetition, viz. that scientists don't know everything, but they do know certain things.

A few decades ago I was involved in hearing research (including the physiological and psychological sides). Since then, as well as after reading a whole lot of other research, I was modestly convinced that we are aware of certain things that can not be heard. Considering certain relevant electronic basics together with that, this falls under things we do know and can claim in the audio reproduction business.

How does it then follow that I need to have "a perfect understanding of the physics involved ..." or whatever else in order to understand certain things?


It always troubles me when people think they understand something perfectly.

Following on the above: I do not have a perfect understanding of mathematics, but I do understand that 5 + 3 = 8 - and in that vein, that it cannot = 10 (to the base of 10, before the usual remarks crop up :) )
 
Johan,I think that no one claimed that scientists know certain things-only-.Speaking of myself when I said something similar,what I meant and really believe,is that scientists know everything that it is known up to this moment.I believe also that tomorrow they will know more.Something's telling me that mach1 meant the same thing,but I might be wrong.
 
.
as well as back yet again to a sine qua non that constantly begs repetition, viz. that scientists don't know everything, but they do know certain things.

Johan, one of the key issues is that there are known unknowns and unknown unknowns (apologies to DR), and that an awful lot of very well educated people fail to take the latter into account. I am a scientist, and our profession is as guilty as any other.
 
Mach1,

With that I must unfortunately agree :( . But coming from a research background, it was always necessary to keep in mind the differences I mentioned. I think in the case of audio it has been pretty well established what is not audible from the multitude of tests in this regard, though we may not yet know the physiological mechanism.
 
pointy said:
it's been some time since we had a post from ''Panicos K'''

do you think they are Ok.......................................god willing pointy


Yes,we are ok:) We are expecting George to return from a busines trip,and he will be the first to try the electric chair.He'll be back on Thursday so the fun will be just a few days late.Everything is almost ready.I will try to upload a few pictures in a day or two.Back to training:):spin:
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.