Yodobashi Camera opened a large store in Akihabara and it changed the stream of people to the east direction. I can not imagine how different it is. I dropped in that store but I could not reach audio department. I will visit there again one month later to enjoy shopping.
I installed full range unit to baffle board out of Coral speaker. I decided to make tweeter separately.
The material is a heavy and hard wood called "Tagayasan" which is a plant originally foreign country.
This board was so hard that it was difficult to make it. But the sound seemed good than I expected. I tried to change various capacitors and I choose Bita Q(1.0 micro) as the best one.