Need a recommendation. I have a friend looking for a 410 cab that is voiced for deep bass. I have been told that an Ampeg SVT410HLF would be a good choice. I have no idea what all the suffix letters mean in the Ampeg cabinet lines, and they seem to have had a LOT of different models of 410 cabs over the years, I guess they're all voiced a little differently? Or, any other recommendations for a good, DEEP sounding model of any other manufacture 410 cab? We're open to suggestions, high-end or true-fidelity is not a specific requirement.