if you just changed subs and didnt change your power the SPL will probably stay the same. subs dont realy make a system louder. doesnt matter if you have jensen subs or DMX subs. As long as jensen can handle the power of your amplifier either one of the subs will be as loud.

are you looking to buy a meter? You can buy one here WHE Inc Storefront

dont know where cornwall is. Im in Toronto and have a meter.

__________________
Team Fear Of Bass



FOR SALE:

My CRX - Loudest North American Street B Car

Brand New Digital Design 9510G Subs for CHEAP

Some BIG Amplifiers For a Good Price