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Understanding ohs in a 500w Amplifier PowerPoint PPT Presentation


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Understanding ohs in a 500w Amplifier

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Understanding ohs in a 500w amplifier

Understanding 

ohs in a 

amplifier

When  you  find  the  term  ohs  in  your 

500w amp, it is important to realize that this 

is used to measure resistance. In most cases, 

audio amps are designed in a way where they 

are able to work with a resistance of 4, 8 or 

even 16 ohm resistance. In order to get the 

optimum  performance  of  a  system,  there  is 

need for correct impedance or total resistive 

load of the amp.


Understanding ohs in a 500w amplifier

In  case  the  impedance  of 

the loudspeaker is too high, 

this  will  reduce  the  power 

that  is  delivered  to  the 

speaker. On the other hand, 

if  the  total  impedance  of 

the loudspeaker is too low, 

this will increase the amount of power that 

will be delivered to a loudspeaker. This may 

result in an overload of the speaker and can 

result in the amp getting damaged.

No 

matter 

the 

amount of speakers, 

it  is  possible  to 

connect  them  to  a 

single  amp  as  long 

as  you  ensure  that 

you wire them in the 

right  way  and  they 

don’t fall collectively 

in  the  amp’s  output 

impedance.


Understanding ohs in a 500w amplifier

It 

loudspeakers by 3 different methods known 

as parallel, termed series and a combination 

of parallel/series.

is 

possible 

to 

connect 

different 

When  dealing  with  a  PA  sound,  a  key 

capability is the calculation of parallel load. 

This  is  the  case  for  two  key  reasons.  The 

first  one  is  that  the  connection  for  dual 

speakers  whether  on  an  amp,  speaker 

enclosure  or  mixer/amp  are  usually  wired 

in parallel. There are people who think that 

by running separate speaker cables from the 

speaker  output  on  amp  or  amp/mixer  to 

enclosure,  it  will  be  possible  for  them  to 

avoid  putting  the  speaker  in  the  parallel 

circuit.  For  others,  running  the  speaker 

cable  from  one  cabinet  to  the  other,  the 

cabinets  will  be  placed  in  series  and  this 

means  that  the  two  loads  will  be  added 

together. However, the fact of the matter is 

that everything is usually put in parallel.


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