do a passive fader draw any power?

harveywong · 2010/03/06, 21:08

I am running my front component speakers and rear 6x9 off of one amp using a passive fader, my question is am I losing any amp power running this fader or am I better off getting rid of it? Setting is always in the middle. I only use it when tuning or when I have passenger complaining it's too loud in the back.

lukaQ · 2010/03/08, 10:37

fader, in front of the amp(signal) or in series with speaker?
for first one, its fine, for second, I say hell nooo, take it out

I have never seen HU that does not have some sort of balance to set

harveywong · 2010/03/08, 16:35

it's in series with speaker. The HU does have a fader but I am only running one amp and it happens to be a two channel amp. So I am losing some power with this setup?

lukaQ · 2010/03/13, 13:16

yes, that resistor only creates heat that goes into air instead that would be saved or used for runing speaker

harveywong · 2010/03/13, 21:43

thanks, I did notice that the fader was getting hot so i finally got rid of the fader and the SQ increase along with the output got louder.

2010/03/06, 21:08	#1
harveywong MIP Join Date: 2008/07 Posts: 68	do a passive fader draw any power? I am running my front component speakers and rear 6x9 off of one amp using a passive fader, my question is am I losing any amp power running this fader or am I better off getting rid of it? Setting is always in the middle. I only use it when tuning or when I have passenger complaining it's too loud in the back.

2010/03/08, 10:37	#2
lukaQ MIP Join Date: 2008/10 Location: Slovenia Posts: 808 Thanked: 10 Times in 10 Posts Groaned: 2 Times in 2 Posts	fader, in front of the amp(signal) or in series with speaker? for first one, its fine, for second, I say hell nooo, take it out I have never seen HU that does not have some sort of balance to set 2x DD1510 @2R on 2x m1a linked 3c/f with 48"sq of port, 35Hz tuning http://www.edesignaudio.com/elementa...ns_carpet1.php http://www.edesignaudio.com/elementa...ns_carpet2.php http://reaudio.com/speaker_box/LPort_Box_Calc.html

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2010/03/08, 16:35	#3
harveywong MIP Join Date: 2008/07 Posts: 68	it's in series with speaker. The HU does have a fader but I am only running one amp and it happens to be a two channel amp. So I am losing some power with this setup?

2010/03/13, 13:16	#4
lukaQ MIP Join Date: 2008/10 Location: Slovenia Posts: 808 Thanked: 10 Times in 10 Posts Groaned: 2 Times in 2 Posts	yes, that resistor only creates heat that goes into air instead that would be saved or used for runing speaker

2010/03/13, 21:43	#5
harveywong MIP Join Date: 2008/07 Posts: 68	thanks, I did notice that the fader was getting hot so i finally got rid of the fader and the SQ increase along with the output got louder.