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Old 8th December 2003, 02:20 PM   #1
Did it Himself
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Location: Gloucestershire, England, UK
Default Grounding in Power Amps

In an amp I have 4 or 5 grounds:

i/p signal
o/p zobel
and possibly one for noisy stuff to be added later

I return the speaker to the star point at the junction of the main PSU caps. Should I also return the o/p zobel and feedback to this point individually, or can they join to a star point on the PCB which then is connected via wire to the PSU star point?

Can the i/p signal/PCB ref also use this on-board star point, or should it have its own connection?

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Old 8th December 2003, 03:56 PM   #2
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Location: quebec
You should find some example in this page about wiring a power amp
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