Help understanding power of sub tones (Using scope)

[mledez 10+ year member]

Hi,

I had some time with a big question !! posted in other forums without a good explanation

I use tones to set the gains of my amps... as a rule always used a 50hz tone 0dbfs, but I tested 100 90 80 ... 30 hz and noted the lower the freq the more power the amp gives... so if I use a 50hz tone to set gains what happens when a 30hz signal comes from the deck ??? I think the signal goes clipped

I think is because of the required energy to produce low notes, more cone movement so more energy... But I really don't know the real explanation, aldo Why is the more acurate method to use ??

Thanks,

Miguel

Don't look my english please

Click to read more...

 

[loopkiller 10+ year member]

Is it possible that your crossover slope is causing this issue? //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[mledez 10+ year member]

Is it possible that your crossover slope is causing this issue? //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

Using -18db/oct low pass integrated in pioneer HU, But I'll try turning it off

Thanks

 

[mledez 10+ year member]

Is it possible that your crossover slope is causing this issue? //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

You were right !!! Not the slope, the crossover was at the opposite direction... The amp doesn't have on/off for xover... so instead of rotate al the way to the right was on 35hz