Some updates (site + speakers)

I have gotten permission to use to the Liberty Building! I made my first “official” visit there today and took some pictures and recorded some sounds with my DR-100 built-in directional mics and tested my contact mic rubber unit. Here is documentation of that:



Sounds:
elevatorrevolving_1revolving_2railing_1railing_3overall_space

After wrestling with IC amplifiers trying to get enough volume out of the speakers attached to the contact microphones, I decided that I need to change the design such that I can build speaker cabinets. This increases the volume at least 3-fold and makes life much easier as wattage does not necessarily mean more volume. Here are some test at that:


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