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In order to maximize efficiency of plate cutting plan, materials of
side edges were made separately. 15mm x 15mm squared log was used for
side edge and pre-cut.
Used saw is called "precision meiter saw". This is very practical to cut small-sized log precisely.
Squared log was set and clamped as in the left picture and saw was
reciplocated by hand, then acurate 45 degree was given as in the
picture.
The side edge materials and wood pipe ducts were pre-cut as in the below left picture.
Some materials had to be separated to two pieces, in order to save square log materials.
Pre-cutting these materials are very important to assemble accurately.
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Some wood pipe ducts were combined and glued in order to save wood pipe materials.
Wood pipes are very expensive, so that ducts may be made by paper or PVC pipes may be substituted.
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Component materials are combined and glued, then left for a few days.
One day is minimum term to secure strength of gluing.
This is the most patient time for loudspeaker builders.
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Pre-assembly continues...
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Finally, assembly complete.
Then ground down all the edges and corners.
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After finishing, finally MCAP-CR family became complete.
All the systems MCAP/AICC/CBS-CR look same.
It was really ideal for comparison.
All the systems were compared with my friend, Mr. Matsu. He was
surprized at the exterior of these systems. They looked same for him.
He began listening without knowing deferences of these systems.
His impression was diference among these systems were very small.
Changing music sources and listening intensively then difference was
detected.
He told me AICC-CR gave the best sound field presence. It regenerated clear drum attackss, according to him.
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Lowest end frequency was around 37Hz, so that low frequency range sounded enough using these systems.
After that, all the systems were demonstrated at 1st conference of
"Research Institute of Loudspeaker and Related Technologies", most
people graded that CBS-CR was the best favorite.
My impression is that standard MCAP-CR is the best favorite. Standard MCAP-CR demonstrates most natural sound for me.
There is no conclusion which is the best, but I guess order changes every time.
All the system became proven.
Write me an email, if you want more information.
mcapspeakers@gmail.com
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