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Class D Switching Power Amplifiers and Power D/A conversion

Total noob - want to build (assemble) 6-channel amp
Total noob - want to build (assemble) 6-channel amp
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Old 15th May 2018, 01:36 AM   #21
solid7 is offline solid7  United States
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Join Date: Apr 2008
So what would I want to use to "turn down" the amp power? I have way too much available power for the application that I'm starting with. (although it will be excellent for future projects)

Is there a good way to limit power output, without degrading performance?

I don't want someone to damage my speakers, if they aren't familiar with the equipment. I need to put it in "valet" mode, so to speak...
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Old 15th May 2018, 02:35 AM   #22
thizzgiant is offline thizzgiant  United States
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I don't have experience with your particular amplifiers but with the minidsp you can control the gains on both inputs and outputs, lowering those into a sweet spot should keep your speakers from being over driven. It's what works for me. Good luck!
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Old 15th May 2018, 06:27 AM   #23
Nenola is offline Nenola  Finland
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That might be it. The board has 3-pin connector for a mono potentiometer to do the job. The pot could be installed behind the amplifier or some other secure location.
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Old 15th May 2018, 01:53 PM   #24
solid7 is offline solid7  United States
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Would that affect sound in any way? Introduce any kind of unwanted noise or interference?
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Old 16th May 2018, 05:07 PM   #25
solid7 is offline solid7  United States
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Quote:
Originally Posted by MAAC0 View Post
I've seen many amps using that grey CD-ROM analog type cable for signal.
From the amp module to the speaker terminals? Or just from the inputs to the module?
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Old 17th May 2018, 02:02 PM   #26
Nenola is offline Nenola  Finland
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Quote:
Originally Posted by solid7 View Post
From the amp module to the speaker terminals? Or just from the inputs to the module?
If he means IDE/ATA cable, I would use it only for input wires. For outputs something thicker.

Quote:
Would that affect sound in any way? Introduce any kind of unwanted noise or interference?
Don't have the answer yet, my project is unfinished because of broken solder iron

But I think the potentiometer isn't directly connected to any of the inputs or outputs, so it probably is noise-free.
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