3012LF models out with an F3 around 52 Hz as a vented direct radiator. You could probably mass load it, and lower the F3 a few Hz. An EBS alignment could also be used I suppose. The optimal 1.75 cubic foot volume leaves a lot of room for EBS expansion. 52 Hz is fine for those who believe there is no life below the 2nd harmonic, but IMO it will be a bit thin on the bottom. 3012LF is really suited for horn loading. BTW, did they charge a lot for you to register fEarful as a trademark? I thought that process was time consuming and expensive, due to the legal research involved. I'm curious to know more about the process, in the event I ever do that for myself.