I searched and found this thread with no conclusion other than billfitzmaurilce saying the driver that came in my cab (Eminence Alpha Pro) is not a good choice. Replacement Speaker for an Acoustic 301 cab? I bought this cab based on hearing a rock band using one with an SVT in the late 90s. I remembered it sounding great and I loved the way it looked. I tend to like vintage speakers. Is there a vintage style similarly voiced equivalent today? The 18 in it has good specs, but he's saying it goes too low to work in this cab.