#1
I've got an Ibanez MIMX 65W Combo amp. I want to purchase two Ibanez speaker cabinets so I can play live shows with larger crowds, but I'm not too sure if they will be able to plug into my amp. If they will it'll save me money, but if not, I'll have to purchase the 150W head amp. So do you think that two speaker cabinets (or just one for that matter) will work with my 65W?

Here's the link to the amp's info
#2
More speakers don't make it louder.
You need an amp with more wattage to be louder.
Also, your amp doesn't have a speaker out jack, so you won't be able to plug it into a cab, anyway.