What would be a noticeable increase in RMS rise on a 1-channel monoblock?

Example of this is running 600 rms vs 500 rms ...
Is this noticeable?

Or is it more like 800 rms vs 500 rms ...

Nothing else changes. Same vehicle, same power, same box and same sub(s).

Looking for opinions, price differences between amps and there's only 100 rms difference.

 

On loud levels is said that a 0.3dB difference is easily noticeable, even a 0.1dB difference can be noted.

difference in dB = 10log P2/P1

P1 = 500W
P2 = 600W

 

When I hear "clamped power", does that mean the watts stated is actual or is that before taking into account a 20% loss in power from an 80% efficiency rating? Those Sundown 3.5k's clamp something like 3650W, but are the sub(s) seeing around 2920W?

I think I'd take a JL 500/1 over any amp between 500-800W because it makes the same power from something like 10-15V @ 1.5-4 ohms. I suppose that's good for other losses like impending rice? I don't know much about it . I've heard one that sounded great, it'll beat up cheap motors though.

 

Clamped power is a reading taken on the amps OUTPUT so efficiency is already a non-issue due to u not measuring INPUT power.

 

If I did this correctly, it's something to the tune of " 0.079181246048", meaning 0.07 and from what you've said, an audible difference.

Okay thanks, I'll consider it in my purchases.