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Old 13th August 2006, 04:14 PM   #1
ary is offline ary  China
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Default About the Hi-Fi attunement

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?
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Old 13th August 2006, 06:04 PM   #2
MikeB is offline MikeB  Germany
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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
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Old 14th August 2006, 01:31 AM   #3
ary is offline ary  China
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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 !

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Old 14th August 2006, 06:56 PM   #4
MikeB is offline MikeB  Germany
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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
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Old 16th August 2006, 12:56 AM   #5
ary is offline ary  China
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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.

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Old 16th August 2006, 02:02 AM   #6
Leolabs is offline Leolabs  Malaysia
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"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.
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Old 17th August 2006, 12:51 AM   #7
ary is offline ary  China
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Quote:
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.

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Old 17th August 2006, 01:58 AM   #8
Leolabs is offline Leolabs  Malaysia
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"Bu Ke Qi"

Wish that you will build something to show us.



"Yi Ge Zu Guo"
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