So I have a 12" JBL GT5 sub running on a dual xpa2500 @ 150W RMS bridged. Yeh amp is cheap, but it does what I want for the price.
I would like to set the gains correctly although from what I have read I am very unlikely to damage the sub because it is rated for 275W RMS and I am running it at 150W RMS.
So let me get this straight...
150W RMS x 2ohms impedance on sub = 300
Sqrt 300 = ~ 17.3v
Now I turn off all bass boost and put normal listening volume on deck then read the + - with DMM on amplifier /w sub NOT attached and keep adjusting dials until I get 17.3v?
Do I need to bring my bass + sub bass on HU to zero? when do I adjust the HU settings?
Thanks
I would like to set the gains correctly although from what I have read I am very unlikely to damage the sub because it is rated for 275W RMS and I am running it at 150W RMS.
So let me get this straight...
150W RMS x 2ohms impedance on sub = 300
Sqrt 300 = ~ 17.3v
Now I turn off all bass boost and put normal listening volume on deck then read the + - with DMM on amplifier /w sub NOT attached and keep adjusting dials until I get 17.3v?
Do I need to bring my bass + sub bass on HU to zero? when do I adjust the HU settings?
Thanks