Car Audio Question

Post by **Blade7764** » Thu Oct 02, 2003 10:37 am

Ok, Every morning when I get in my car I can't even hear my sub. After it has been sitting in the parking lot all day at school and my car is 100 degrees when I get in, it is nice and loud. Why does it do this.

Post by **Anand** » Thu Oct 02, 2003 10:37 am

moved to audio forum...

Checkered-Member · Post by **Checkered-Member** » Thu Oct 02, 2003 10:37 am

what amp/subs are you using?who did the wiring?

Post by **Blade7764** » Thu Oct 02, 2003 10:37 am

Its a Jl audio 10W0 Sub and a MTX 4250D Amp. I did all the wiring, and yes its correct wiring.

Post by **driftaholic** » Thu Oct 02, 2003 10:37 am

how cold is it in the morning?

Post by **Blade7764** » Thu Oct 02, 2003 10:37 am

40 Degrees

Post by **driftaholic** » Thu Oct 02, 2003 10:37 am

if all the amp does is power your sub, then it could be that the amp doesn't work right when it's that cold. my md deck doesn't play md's at all until it gets warmed up. it turns on, accepts and ejects md's and plays the radio fine.

Post by **QX4MIkey** » Thu Oct 02, 2003 10:37 am

Temperature changes the way speakers/subs perform (Resistance wise)..A subwoofer will have variable resistance with music also, therefore the amplifier could be getting between 2 ohms and 20 ohms hence the difference in sound (read: Power being applied to the subs).

Also, Temperature can change the pressure of a given space (like a car) since Subwoofers create SPL (sound pressure level), this may also be why it sounds louder at certain Temperaturelevels.

I hope this helps

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