If I want to make a 8 ohm to 16 ohm cabinet, would it be possible to just add a switchable inductor in series with my existing speaker? For example, I have an Eminence Legend 1518. The nominal impedance is 8 ohms. DC resistance is 7.16 ohms. Resonance is 82 Hz. A 13.9 mH inductor has a resistance of 7.162 ohms at 82 Hz. So shouldn't I be able to add a DPST on/on switch in series with the inductor to double my impedance? In doing so, would I be able to keep the dynamics of my original speaker intact?