Multiple-Degree of Freedom Cavity Resonator Diary

 I noticed that installing speaker drivers both L and R channel to same chamber makes stereo effects more than ten year ago. It was a test model for MCAP-CR application. Primary focus was to verify if thin film bottle could substitute for speaker driver membrane. The answer was "no"; however, it was found thin film bottle can be used as MCAP-CR subchamber. This system has both L and R drivers in the main wood chamber. I was curious about stereo effect, though L and R were installed closely. I recently tested above effect with 8" full-range drivers (photograph below). This model has two (L & R) FE206E frivers in same chamber. Real sound field effect was given by this system in big room. Now let us see the system of electrical matrix speaker system (let us call "EMX" speaker system) below: EMX is electrical wiring system with unbalanced amplifier whose negative terminal is grounded. Balanceed amplifire may not be used for MMX system. Mechanical matrix speaker

 New MCAP-CR Performance Simulator was uploaded to following site: http://mcap-cr.com/mcap/software.html New simulator is written with OpenOffice BASIC code and distributed as international standard spreadsheet format(*.ods). Use free OpenOffice or LibreOffice to open this file. You may need to change security setting: it is described in the attached document with the simulator file. You can click and execute the program and soon graphic chart is shown. Program execution is a little bit slow but probably maximum execution time is 10 minutes. Please enjoy MCAP-CR system development with the new simulator. It will greatly help the design verification. Ciao!

My blog update of this page is too few. I have been updating my Japanese blog every day for recent years, but updating this English page takes more time, I feel reluctant. Recently I am building a new 4" class MCAP-CR system. Here is the drawing of the newest system. I recently pursue the simplest and the cheapest applications. This model requires least pre-cut of a plywood. Size of the plywood material is 1920 x 910 x 9. Most loudspeaker enclosure builder prefer heavy gauge woods. On the other hand, I prefer light gauge materials. Why? I do not own a car, therefore I have to transport materials by public transportation. I will again update this blog when I made the system.

I have been disclosing every detail of information of multiple-degree of freedom cavity resonator theory and applications since I applied patent to Japanese patent office. Now my friends became to use loudspeaker systems of MCAP-CR applications. I have just a few inquiries about commercial use of the patent. One was Dream SounD in France. I helped him to develop his multiple degree of freedom models for free. I wanted many people to listen to the multiple-degree of freedom cavity resonator system. It interests me more than small money by the patent. I was really sorry to have heard of his death with cancer. It shocked me a lot. I would like manufacturers to use my models and software for their development. And I would them to tell me that they would like to use it for commercial purpose. I believe multiple-degree of cavity resonator system, especially MCAP-CR,  solves the biggest problems of single degree of freedom standard bass-refrex systems You now get improved re

Previous post may have not make readers understand. Here is the story. My site has contacting application to me. This application enable anyone to contact me directly through the web site: http://mcap.webcrow.jp/ . One person gave me information about suspected copy of my design. MCAP-CR is patented in Japan. Though it does not apply to some countries, but my copyright is protected. When I am asked for the use of the patented idea, I always allowed to use for free with the following conditions: Patent information and permission by the patent holder is noted. Indicate the website of the patent holder. Indicate the patent holder's information. Use the manufacturer's original design . I am happy to help manufacturers to give simulation. In this case, copy of my design is suspected without permission of patent or design use. The person who reported to me suspected unauthorised use of MCAP-CR gave me the information of the website. I will be the happiest to auth

Buona sera. Ho recevuto una domanda attraverso la sistema. Penso che lui ha trovato una usa sospetta di MCAP-CR. Saro contento se qualcuno i informazioni di il sito. Grazie, [ Subject ] mcap authorized use ? [ Messagec ] http://www.diapasonhifi.it/component/jshopping/diffusori/feastrex-vivace.html