I have been using a home-built oversized front ported 2 x 12 cab for a few years now. I like the sound - it's big, open, plenty of bottom, plenty of clarity. But I did a recording yesterday (sm57 pointed straight at speaker) and the recording sounded quite harsh. For recording this is not a huge issue, I could use a room condensor for example, but I am thinking to the future for if/when I play this rig live. Around here 95% of the time, the venue will have a PA and the engineer will close-mike a speaker. What is the best way to build a cab so that the room sound (standing a few feet in front, as in typical playing) is not too far away tonally from the close-miked sound?