Hi everyone. I've always been a huge fan of JBL's classic L-300 system. Although I do not own a pair I've spent some time here reading about them. Can someone please explain exactly what an acoustical lens actually does? Why are they (on the L-300 for example) angled down towards the woofer? As a matter of fact all acoustical lens are angled down from what I've seen. I'm guessing that the driver behind the lens is VERY directional and the lens "Sqeezes" the sound waves to spread them around in all directions.....much like sqeezing a garden hose with your thumb. I'm only guessing mind you. I feel I'm in a room full of technicians......so please excuse my ignorance! FWIW....I do own Altec 19 speakers with an 811b sectoral horn. So, whats the functional differance between an acoustical lens and a sectoral horn?
Russ