Bazz339 Posted January 10, 2012 Share Posted January 10, 2012 I have always worked on the basis that the wattage of 100V line amplifiers should match or exceed the total wattage of tappings of loudspeakers hanging off them. I am looking at an install where I want to use larger speakers for tonal quality, the max tap on these is 30W but I don't know what they will end up tapped at in reality probably lower. System is primarily speech reinforcement. 12 speakers = max of 360w plus 2 X 5 watt speakers and maybe 4 attenuators maximum If I used say a 240W amplifier is that likely have problems with that load on it used for speech reinforcement in an environment with low ambient noise. I need to do some calculations to find out likely tappings. Link to comment Share on other sites More sharing options...
paulears Posted January 10, 2012 Share Posted January 10, 2012 The usual rule is not to exceedthe amp power capability - driving a couple of low tapped speakers won't be an issue. Run them at their maximum tap and you'll run out of steam. If you want more volume, why not just get a bigger amp, or another the same and run tow zones? Link to comment Share on other sites More sharing options...
MarkPAman Posted January 10, 2012 Share Posted January 10, 2012 or another the same and run tow zones? .......... just in case the drivers park where they're not meant to Sorry, couldn't resist. Link to comment Share on other sites More sharing options...
Bazz339 Posted January 10, 2012 Author Share Posted January 10, 2012 The usual rule is not to exceedthe amp power capability - driving a couple of low tapped speakers won't be an issue. Run them at their maximum tap and you'll run out of steam. If you want more volume, why not just get a bigger amp, or another the same and run tow zones? All options I am considering. or another the same and run tow zones? .......... just in case the drivers park where they're not meant to Sorry, couldn't resist. For a moment I thought you were referring to another post made recently regarding cone excursion and speaker phasing. :) Link to comment Share on other sites More sharing options...
Yorkie Posted January 10, 2012 Share Posted January 10, 2012 I suspected the old church install I've just seen with a 60W amp and speakers tapped to a total of 100W was bad :blink: Do 100V line amplifiers differ much or do I just spec them a simple one like one of these? http://avslgroup.com/en/product/952.908UK Link to comment Share on other sites More sharing options...
Bazz339 Posted January 11, 2012 Author Share Posted January 11, 2012 Adastra have been around for a while. Rightly or wrongly I have always considered them to be budget kit at the lower end of the commercial market. No experience of using them so interested in what others think. The Amps linked to might be of interest for my application. High powered 100V slave amps from the usual suspects look expensive compared to their lower powered mixer amps. I suspect that installations requiring the higher power are not quite as price sensitive. Link to comment Share on other sites More sharing options...
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