Hello, My name is Mike, this is my first time to the forums. I have seen Paul McGowan’s IRS set up and have been told he is quite knowledgeable on the subject. I am hoping he or someone on the forums could help. I have built a pair of bass cabs, similar to the early IRS models, to go with the mid/high panels in my avatar. I will be using 4 12" Watkins dual drive woofers in each which I am committed. I do not have a servo. I am looking for the best method to wire the woofers and do I need the Watkins circuit used in the Quantum line. I have had inputs that recommend series/parallel wiring, with and without the circuit. Any ideas?? Thanks, Mike.