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Chip Amps Amplifiers based on integrated circuits

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Old 4th December 2012, 02:10 PM   #31
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So, could anyone less wilfully obtuse tell me whether we qualify the speaker as power or signal, seeing as how it is in effect the confluence of both?
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Old 4th December 2012, 03:54 PM   #32
AndrewT is offline AndrewT  Scotland
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Not obtuse.
The Signal Grounds are listed in post8.
Audio San drew that description up and posted it in 16.

But, maybe it's you that allege my posts are unhelpful.
Is this another you want to add to that unhelpful list?
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Old 4th December 2012, 08:42 PM   #33
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Quote:
Originally Posted by AndrewT View Post
Not obtuse.
The Signal Grounds are listed in post8.
Audio San drew that description up and posted it in 16.

But, maybe it's you that allege my posts are unhelpful.
Is this another you want to add to that unhelpful list?
Post 8 was extraordinarily helpful, and it not mentioning the speaker ground explicitly led me to resurrect the thread. I might assume speaker ground comes under the mentioned "main audio ground", which seems neither signal nor power, hence the unhelpfulness and incompleteness of your post #29.

Is my assumption correct? Or is it in fact power ground, or some other ground not yet mentioned?
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Old 5th December 2012, 03:47 PM   #34
AndrewT is offline AndrewT  Scotland
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If you are building a monoblock then all except the Signal Ground get connected together.
You can call this the Main Audio Ground (MAG), (my preferred term).
Others may call it the Power Ground.

When building a two, or more, channel amplifier then the grounding ballgame changes.
The Power Ground must be on the amplifier. The Main Audio Ground is likely to be elsewhere. I recommend that the Speaker Return must follow the speaker output lead and traces to eventually reach the MAG.
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Old 11th April 2014, 02:31 PM   #35
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although this thread is a bit old, i've find this thread very informative to help tweak my chipamp
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