Yesterday I sent a note to TruExtent asking about the new model numbers... this afternoon I received a more detailed answer than I expected:
"The previous Truextent "SSX" design (Be4008 and Be4016) certainly sounded great, but had some variability and reliability issues in production. The "BeX" (BeX4008 and BeX4016) design goals were to improve power handling and manufacturing consistency while maintaining or improving overall sound quality. Without delving into details, we met those goals by changing several parts, processes, adhesives, and tools ultimately making a diaphragm assembly fit for professional and OEM customers (100W AES power handling, lower distortion, similar frequency response, tighter QC acceptance windows)."
I hope this is helpful.
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