SAMPLE DRAWING ARE UPDATED
Hello. It has passed 5 months since last update. There are more frequent updates in the Japanese pages, but not main page. Please visit the following page: SAMPLE DRAWINGS .
I am developing loudspeaker enclosure. Mines are mostly multiple degree of freedom cavity resonator types. These systems are world-premier systems. You will find the most advanced features in my web site. This Blog is to take notes of daily weekly or monthly activities.