Fu_man is right... (BD-Design)
Probably way out of topic, but still; Coral Beta 8 was also MY first encounter with building a backloaded horn speaker, and the one that got me hooked on high efficiency and horn speakers in general. And they were cheap too, at that time ('78-'83) we paid approx. 100 Euro for this driver, and only about half of that for the cheaper version Flat 8. That driver also had a white membrane, similar to many of the nice Fostex drivers from that era. I also remember building a mother of a bass reflex system with a Fostex 13" (!) edgeless drivers, terrific build quality, white membrane and enormous magnet system. Can't remember the sound anymore, but the concept of an edgeless driver was increased speed/less distortion by making it easier for the speaker to move.
So Bert, you should be thankful to Coral/Fostex and their partner here in Norway/Denmark at that time, Audioscan, who were very much into DIY and horns/tubes etc. They made these things easily available to us young lions...
Complete thread:
- Fu_man is right... - Bert, 2007-11-29, 12:28
- Fu_man is right... - JAM, 2007-11-29, 13:08
- Fu_man is right... - Bert, 2007-11-29, 13:36
- Fu_man is right... - JAM, 2007-11-29, 13:52
- Fu_man is right... - GC, 2007-11-29, 14:17
- Fu_man is right... - JAM, 2007-11-29, 15:49
- Fu_man is right... - GC, 2007-11-29, 20:26
- Fu_man is right... - JAM, 2007-11-29, 15:49
- Fu_man is right... - Bert, 2007-11-29, 13:36
- Fu_man is right... - madprofessor, 2007-11-29, 20:11
- Fu_man is right... - Bert, 2007-11-29, 21:19
- Fu_man is right... - fu_man, 2007-11-30, 02:29
- Fu_man is right... - MikeH, 2007-12-07, 00:45
- Fu_man is right... - JAM, 2007-11-29, 13:08