I have spent allday fitting a new h/u and multiplay
amp and bassbox ,finished had most of it back together
sat in the car for a play around and have no bass
the amp light is on and not flickering,so what could it be
i was thinking maybe a bad earth but not sure
any help appreciated:D

cheers mouse

what head unit have you fitted. If the amp is lighting up unliky to be earth.try a slave set of phono leads and check the setting for the amp
Adrian

its a kenwood 838,hope its not dodgy rca lead its a
nightmare getting it through the car:D

its a kenwood 838,hope its not dodgy rca lead its a
nightmare getting it through the car:D

Does the H/U have separate Sub control that needs switching on in the menu ?

dont think so as i had to connect to rear rca preout
and have messed about with everything i can find:D

Turn up the gain on the amp?

Make sure filter set to low pass, and if variable, ensure it sets to about 100hz for starters.

Make sure you have connected the sub speaker wires to the correct terminals on the amp, not always obvious esp. if using bridged mode.

Make sure fader setting on h/u not set to front.

Apologies, as you have probably done all that already.

What amp is it ?

http://www.kenwoodeurope.com/downloa...738%20(EN).pdf

there are a host of settings for the woofer, this should sort you out.

thanks for your help:D
when i get my son to sleep im on the case:D
cheers mouse

Have you connected the sub remote to the head unit?

Do you mean the remote wire (blue)?:D

it was purple on mine. It's wired in with the RCA lead

yes thats connected,ive been told that scoobys have a bad earth
and to use the one behind the rrear seat where the lights earth