necrophilic_coder Posted March 20, 2007 Report Share Posted March 20, 2007 i must be find 70W or 100W megaphone circuit thanks Quote Link to comment Share on other sites More sharing options...
prateeksikka Posted March 25, 2007 Report Share Posted March 25, 2007 sorry for not solving your problem.but could u please tell me what a megaphone is? Quote Link to comment Share on other sites More sharing options...
audioguru Posted March 26, 2007 Report Share Posted March 26, 2007 A megaphone is a re-entrant horn loudspeaker at one end, a microphone at the other end and a 3W to 15W amplifier in between. They are very loud and are used by a person talking to a crowd of people. The re-entrant horn loudspeaker is very efficient from 500Hz to 4kHz and sounds horrible.70W to 100W is rediculous because it will be so loud that the mic will hear the speaker and cause acoustical feedback howling so loud it will deafen everybody. Quote Link to comment Share on other sites More sharing options...
steven Posted April 21, 2007 Report Share Posted April 21, 2007 :)look on the internet type bull horn circuit if its still there Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.