Digital Museum Program launched by National Science Council (NSC) has completed its first phase auditing at the end of 1999. The evaluation programs for DL/M at the different levels for the various purposes are highly recommended. The typical spots for DL/M evaluation include system analysis phase. prototype stage (formative evaluation). https://www.roneverhart.com/Turbosound-TS-18SW700-8A-18-Low-Frequency-Loudspeaker-p31480/