Members moody Posted December 26, 2002 Members Share Posted December 26, 2002 I have a small mono pa head that I have used on and of for practice and stuff (not really big enough for full PA work). The outputs are hi fi style screw terminals. I am not sure what all of the terminals do however - they are labeled as follows 8ohm (points to 2 terminals - the ones I use)com70100 There are also a few unlabeled terminals in the same strip which I assume are unused. Link to comment Share on other sites More sharing options...
Members moody Posted December 6, 2003 Author Members Share Posted December 6, 2003 Wow, almost a year with no replies.... (Sorry, going through old posts). Link to comment Share on other sites More sharing options...
Members RickJ Posted December 6, 2003 Members Share Posted December 6, 2003 I'll wager that one of the 8-ohm terminals is jumpered to the "com" (common) terminal. 70 and com will push a 70-volt distributed system. Each speaker on such a system requires a 70-volt transformer. 100 and com is the same as above, b/w 100-volt transformers. The benefit of distributed systems is you can use a lot of speakers without worrying about impedance issues. Many of the multiple ceiling-speaker systems you see installed in restaurants and banquet halls are 70- or 100-volt. Link to comment Share on other sites More sharing options...
Members tlbonehead Posted December 6, 2003 Members Share Posted December 6, 2003 Originally posted by moody I have a small mono pa head that I have used on and of for practice and stuff (not really big enough for full PA work). The outputs are hi fi style screw terminals. I am not sure what all of the terminals do however - they are labeled as follows8ohm (points to 2 terminals - the ones I use)com70100There are also a few unlabeled terminals in the same strip which I assume are unused. Isn't common the ground,or negative and then the two that are marked 8 ohm,the positives? Link to comment Share on other sites More sharing options...
Members moody Posted December 6, 2003 Author Members Share Posted December 6, 2003 Originally posted by tlbonehead Isn't common the ground,or negative and then the two that are marked 8 ohm,the positives? Maybe it's supposed to... but I screw speaker lead to the two 8ohm terminals and get sound..... Link to comment Share on other sites More sharing options...
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