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Unloaded amp to set limiter

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MadPsy View Drop Down
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    Posted: 16 February 2022 at 1:54pm
I'm hoping this is a binary answer rather than 'it depends' but here goes..

Is it plausible to run an amp unloaded for the purpose of setting a sensible level for a limiter. In other words would one expect an amp to clip at the same input level reguardless if it's loaded down or not (assume power supply has plenty current available)?

I suspect it might not be as simple as this so curious what other think.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 16 February 2022 at 5:46pm
Yes, if you base the limiter value on the measured voltage at the amplifier output terminals - which handily, also happens to be how loudspeaker power ratings are calculated.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MadPsy Quote  Post ReplyReply Direct Link To This Post Posted: 16 February 2022 at 9:53pm
Aha yes indeed. I should have clarified in the question I meant using the amplifier's level indicator directly (rather than a DMM on the output).

In other words I'm unsure if you should expect the level indicators to change when there's a load vs no load. In this case it's MC2 amps.
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