bass getting less

[envycordoba]

hey guys bit baffled im running 2x vibe black air 12" subs and when i turn my stereo up quater way up the bass is really good but when i turn stereo up half way it seems to get less really confused as cant find why this is happening??

 

[mt audio]

what do you mean by its gets less?need more info

 

[envycordoba]

as i turn the volume up on head unit you can hear that the subs get less punchy than when the volume is say 1/4 up as then its really punchy. seems like its fading off as i turn it up

 

[mt audio]

ok,what are your settings for gain,frequency etc,wheres your mounting location for your earth?using a dedicated subwoofer pre-out for the headunit?

the more info you give the better

 

[thejoose]

Check to make sure you have your wiring right - is your earth good on the amp stuff like that

 

[envycordoba]

head unit is top of range pionner dvd screen with control box in the boot for all pre outs etc. i have pre outs in sub out which is right. the earth is running from seat belt mount to chasis with all cleaned up for good connection always used that for earthing never had any probs before. as for the gain i'll have to check. all the wiring is fine etc

 

[mt audio]

all the wiring is fine cos you say so you have actually done a continuity test on them?

 

[envycordoba]

not done one but got a power cap and that is all reading ok sorry not to clued up on this

 

[thejoose]

Power caps are useless in all but the top end SQ installs - they can put more of a load on your system -

 

[envycordoba]

well i saw a big difference when i fitted my power cap was a lot more punchy and the lights stopped dimming etc

 

[Jonezyfr]

whats the bass setting on you headunit like? these will need setting up, stuff like preamp, bass, loud mode etc.

other than that id go for the gain and frequency setting on the amps

 

[envycordoba]

yeah was all set up perfect just suddenly started doing it. since 1st post bought new amp all is sorted old amp had died and just was not working properly