I have only a single Adire DPL-12 that I was previously using in a sealed box. After I upgraded, it has gone unused. Now, I am wondering if it would be worthwhile to build a H-frame and use it as a dipole sub for upper bass and my new sub for lower bass (maybe a 40Hz crossover between the two). Would this work? Or do dipole subs need to have two drivers for the proper effect? I am quite new to dipole subs and would appreciate any pointers.