This is a post from my other thread, but I thought it deserved its own thread since its a change in direction. I'm thinking of getting a 2x12 cab from Lopo Line for my Sundown amp head. Here's my question, given a 24" x 24" x 14" cab with 2 x 12" mounted diagonally, where would you put two 4" round ports on the back? I found I can have them placed anywhere I want for only $20 over the standard cab price. The 2x12 Diagonal comes with a closed back as standard. Here's how they build their std 4x10 cab with 2.5" ports. The 2x12 Diagonal is the same size cab and I can put the two 4" ports anywhere on the back.