anyone know a good place to get a db rating on my install in merseyside/north west?

thanks.

You need a speclab and they are pretty few and far between TBH.

I would say around 125db

sound, thnks mate.

how much of a difference do you think it will make when i put the front comps in?

Nothing to overall DB really because its is the subs that are the loudest, hence the furthest away.
Try searching the net for decent audio dealers where you are, I believe Source and Phattbeats are somewhere near you they may have a speclab.

il phone em tmz lol

was also thinking of uprating the battery as well

is it worth it with this sizw of install??

Not really worth doing the batt until you are running over 1500w RMS. I would suggest doing TB3 though.

i may sound stupid but wat?

lol

Upgrade your battery earth, alternator to battery and (if fitted) alternator earth cables to 4awg minimum.

Thicker cable means less voltage drop therefore more power!

I got nearly a 1 volt from just putting on a thicker battery earth.

And try Mega Watt in Runcorn for your dB testing.

Upgrade the big three. -ve battery to chassis
+ve altenator to +ve battery
-ve engine to chassis