Hi forum,
The attaches is a pic of megaphone . I need to ask as regarding the central portion of the flare , there is a cavity what is that called technically and does it provide any amplification ,even if we do not use the outer flare.
Thanks in advance.
An externally hosted image should be here but it was not working when we last tested it.
The attaches is a pic of megaphone . I need to ask as regarding the central portion of the flare , there is a cavity what is that called technically and does it provide any amplification ,even if we do not use the outer flare.
Thanks in advance.