Just tune it a little bit lower, 27 hertz or so. A 27 hertz tuning gives you an F3 of 25 hertz, which is a little bit better. Still gives you a gain of 2.25 dB at 37 hertz. Just click that link I sent you, and over on the right is a little box that says tuning. Change it to 27 hertz and there you go. That'll allow you to play without an SSF. Just don't play any pipe organ or heavy techno and you'll be ok.
Morgan