About the Hi-Fi attunement

[ary]

Hello guys:

Have been very long time doing research the schematics,
have been very long time building Amps,
I've strongly realize that -- the attunement is so critical to the top!

I've seen many projects only provided by somewhat hazy pics,or only post a schematic.
Shouldn't we added some tunint tips?
After listing the propertys of the elements, can we just further something about the parameters and kinds of choices and say some reasons?

Any way, I post this thread was for some research about the attunement skills,
need all of you to take part in of course

P.S.
I've planed to move as below:
Step1.Doing research on the schematics(spice on the theory)
Step2.Layout it (tips,attentions,experince)
Step3.Test that(scope that at least) for the distortion
Step4.Listen it and change the element slowly and compare how it acts.
Step5.Repeat it more and more if needed.

But the problem is: although I know this will be work, but I didn't exactly clear what the standard of each the steps.


Your saying?

[MikeB]

Hmm, at first you might set some basic parameters, how much power, cheap or expensive, nice or good sounding amp, availability of parts, what kind of speakers to drive (4/8ohm, small/big, efficiency, closed/vented)

Mike

[ary]

Yes,Mike

this was the first thing we should do.

Beside, I wonder how to improve the quality of the sound.
I mean how to direct the sound to our prefer.

I've watching your SymAsym5 seriously, and I've made one,
It's really great.

Could you just take your SymAsym5 for example: to explain how to make your attunement or tuning? such as chosing devices? constructions? In fact, your SymAsym5 is based on the basic constructions of solid state Amps

Thank you very muck !

[MikeB]

Ary, designing an amp is apart from the technical background trying and listening. It's a lot of detail work, most devices were selected by technical specs and/or availability. The feedback compensation needs the most attention in detail, internal ringing and overshooting is the enemy of the sound.

Mike

[ary]

Thank you very much Mike !

Seems I've many work to do, to improve.OK fine, I'll check them all(wish can be all in the not too long future)

Haha.

[Leolabs]

"Ning Hao"!

Consider these steps:
1)start building something based on proven design and layout.
2)still the same design but design your own layout to suite your need.
3)modify or improve the design and still design your own layout.
4)finally,design your own!

Depends,test and measurement equipments are essential(at least a multimeter).Spice software is optional to me but layout design software is important.

[ary]

Originally posted by Leolabs
"Ning Hao"!

Consider these steps:
1)start building something based on proven design and layout.
2)still the same design but design your own layout to suite your need.
3)modify or improve the design and still design your own layout.
4)finally,design your own!

Depends,test and measurement equipments are essential(at least a multimeter).Spice software is optional to me but layout design software is important.

Haha Leolabs, good chinese.
Yes, your steps sound really a speedy clue.
Thank you very much (Xie Xie haha)

you refer to measurement equipments,
Yes I do have them, but actully I didn't use them much.

I think I should do this more.

Thank you again Leolabs.

[Leolabs]

"Bu Ke Qi"

Wish that you will build something to show us.



"Yi Ge Zu Guo"