Hi all, its your resident cheapskate here, looking for another way to get a louder amp! I was reading some reviews of the combo I have, a Marshall MB 15, and one reviewer said: "Good for room practice,it have a nice sound output with my Fender Jazz,Yamaha RBX 374 & Ibanez SR705.But the 8 in driver hard to bring out ibanez B string sound.So i replace the stock 8in driver with Eminence Alpha 8 125watt driver.Now it bring the sound tight & warm with Full volume each channel.As loud as 60 watts combo amp. " http://reviews.harmony-central.com/reviews/Bass+Amp/product/Marshall/MB+15/10/1 So I immediately thought "Hmmmmm, it would be so awesome if this actually worked with my amp". I asked my friend, a guitar'd, whether this would work, and he said that it wouldn't make the combo any louder, as it is only as loud as the amp itself, which is 15watts. Is this true, or would it actually make my amp louder? Thanks in advance .