i currently play thru a gk neo 700 / 112 combo which is actually an rb 700-II head (480 watts at 4 ohms) with gk neo 12 speaker. do you guys think a 480 watts would be enough to push this setup with a gk 2x12 neo extension cab? im worried about 240 watts not being ample for the 2x12. or should i go with the 1x12 extension? id really like to have a big sound with a huge bottom.