I have a Memphis mc250d and a memphis 10" dual 4 ohm Sub.
This combo is putting out labout the same bass as the stock 6X9's in my car.

I have it wired to 2 ohms and even with the gains all the way up I get nothing.
I have some no name stuff that works so its not any deck settings.

I realise I cant expect too much out of this but damn, it sucks.
Any suggestions?

 

sub in a proper box?......tried the sub with a different amp?....tried that amp with a different sub?

 

My first thought is, Could be your wiring, the coils backwards? in your wiring?

 

good thinkin, 8ohm instead of 2

 

Subs may have phase issues (one is in phase and the other is out). Check all your wiring!

 

wiring is correct, 2 ohm.
Sub is fine, had it in a different vehicle.
tried a different sub and it is definatly the amp.

 

I can get it play how I want when the volume is up super high, 30 when normal listening is 10.

what does it mean when I have no bass at low volumes but comfortable at high levels.

when its at 30 I just have the sub going, dont want to blow the interior speakers.

 

If its not stock, does ure deck have a Rca output adjuster built in? check that. Cause i kno wen i set my deck to like 0 or 1 instead of 5 or 6 its like having nothing @ all. Or if amp has a imput sensativity switch on it maybe?