Normal
Re: Need more head room, long, narrow roomMy definition is based on -6db, the same as the way the coverage patterns are defined.Once again my complaint is not just that you have a spectral imbalance, but that the spectral imbalance loses what I want most in those listening positions. Just about all the SOS speakers on the market (front loaded LF with HF horn) that have enough level off axis to give constant level have a spectral shift off axis. The few that load both LF and HF onto a horn with effective pattern control that minimize the spectral shift don't have enough level.Once again, I would recommend chapter 6 of Bob McCarthy's Sound Systems: Design and Optimization. It clearly describes the trade offs that have to be made between level and frequency within the pattern of a speaker.
Re: Need more head room, long, narrow room
My definition is based on -6db, the same as the way the coverage patterns are defined.
Once again my complaint is not just that you have a spectral imbalance, but that the spectral imbalance loses what I want most in those listening positions. Just about all the SOS speakers on the market (front loaded LF with HF horn) that have enough level off axis to give constant level have a spectral shift off axis. The few that load both LF and HF onto a horn with effective pattern control that minimize the spectral shift don't have enough level.
Once again, I would recommend chapter 6 of Bob McCarthy's Sound Systems: Design and Optimization. It clearly describes the trade offs that have to be made between level and frequency within the pattern of a speaker.