• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

Modulus-86: Composite amplifier achieving <0.0004 % THD+N.

Modulus-86: Composite amplifier achieving &lt;0.0004 % THD+N.

Dude... Seriously! Grab a textbook.

Tom


I actually rejected someone that just gave me textbook answers about his thesis about a control system during an interview. Total ignorance of reality.

The question asked was "why do you use a constant gain model for the sensors?" When the answer was "that's what they use in the text books" I showed him the door.

Sent from my iPhone using Tapatalk
 
Last edited:
In one of the MyRef threads, it was also mentioned that difference between just plating the soldering pads on the PCB vs full plating made a difference. I think it is possible, but never tried to see how much a difference it would make.
Much of the conjecture in the many MyRef Threads is based on non science. One must learn to separate the wheat from the chaff, there is a lot of chaff about.

Of the conjecture, some may have been about skin depth and it's effect of adding resistance due to current hogging/density, but I suspect you have picked upon a comment and not recognised that it may have been referring to the potential/real problem of joint embrittlement due to solder contamination.
Sent from my iPhone using Tapatalk
Is it possible to stop these unsolicited advertisements?
 
So I guess the right, proper out-of-the-box thinking answer would have been "I try random things without really understanding what they do".
Indeed.
There is far too much "guess engineering" on this Forum.
Hypothesise and experiment to prove the hypothesis. Your peers then repeat the proof and the hypothesis becomes a Theory that no one can prove wrong. They only have the option to make the model more accurate.
 
Much of the conjecture in the many MyRef Threads is based on non science. One must learn to separate the wheat from the chaff, there is a lot of chaff about.

Of the conjecture, some may have been about skin depth and it's effect of adding resistance due to current hogging/density, but I suspect you have picked upon a comment and not recognised that it may have been referring to the potential/real problem of joint embrittlement due to solder contamination.Is it possible to stop these unsolicited advertisements?


Not really sure how you disable these.

Lot's of things I listen to, but I will only clearly state where I agree or have had the same experience. I have no experience which way of plating a board is best because I never systematically tried to find out. But if people say they hear a difference and have a preference, I do not rush to discredit their experience either. I did try to look for explanation, with what I came up with, I would take a different choice, but I doubt at this time I would be able to make a preference based on audition experience. I did find lead based solder to be more to my preference, and there is an audible difference between the solder brands and model, each just seem to have there own sonic signature and I never could fine a criteria for selection. So I just stick with an unleaded that is easy to work with, just to make sure there no surprises going into production.


Sent from my iPhone using Tapatalk
 
Using a properly controlled, double-blind listening test, I assume?

Sent from my desktop computer using a keyboard
I did have something to say on
There is far too much "guess engineering" on this Forum.
But clearly I forget to include any comment on "old wives tales engineering"

I do like you ad !
changed my sig in recognition.
 
Last edited:
I forget to include any comment on "old wives tales engineering"

Indeed. But engineering is for the closed-minded, numbers-staring "numbers is the truth" dullards anyway. What do they know about ART and MUSIC and EMOTION?

I do like you ad !
changed my sig in recognition.

:)

Here I haven't been doing a sig - elsewhere I usually use the - Paul W Klipsch quote from 1953: "To try to judge the real from the false will always be hard. In this fast-growing art of 'high fidelity' the quackery will bear a solid gilt edge that will fool many people"
 
I see.



I always find other issues mask the actual differences in sound when doing a sighted listening.

Sent from a paper cup using a length of string


I think whatever protocol is going to have some pros and cons, that is why one needs to be aware what you want to accomplish during tests. I just threw in the different solder issue arbitrarily to see if it was worth serous consideration. Turned out not significant enough to worry about. I also discovered that not sufficient information was available on solder to help decide whether one would perform better or not.