at present, i've got a 4 channel amp(37.5 wrms) and 2 12 inch subs each with a power handling of 100wrms(200 peak). Each sub is getting one channel which isn't really enough power. Just wondering if i bridge the amp to 2 channel mode i will be getting enough power to the subs... I looked on the interent site for the amp and it said: 150 W X 2 @ 4 Ohms Bridged RMS any one got any suggestions ??

sorry forgot to mention that the amp is 37.5wrms per channel

yep, bridge both pairs of channels to power both subs (channels 1&2 for one sub, channels 3&4 for the other one).

Yep definantly bridge it so its 2x150. Your amp might have onboard crossover?? if it does its most likely only 2 of the 4 channels with be LowPass (means only 1 woofer can be crossed over) so you might need an external crossover for the other sub....depends