I visited a room with rear-loaded single-driver horns at MAF in Lima, but something was wrong 'cause they didn't sound right. When I heard Jim's little Fostex speakers last summer, I knew that what I'd heard in Lima wasn't indicative of their true nature. Maybe I just happened to hear a selection that wasn't mixed well or the source equipment was off that day or something. It had little bass and absolutely nothing above 10kHz. But even if the box was way wrong it wouldn't have affected the top-octave so something else was amiss. I'd like to hear another example of a back-loaded single-driver. I'd also like to spend some time with a large front-loader like an Oris.