How many amps will a 250 watt amp draw

 

Bronze Member
Username: Subwoofaz_rock

Brisbane, Queensland Australia

Post Number: 37
Registered: Jul-06
im just wonderin how many amps does a 200 to 250 watt amplifer draw ??
 

Gold Member
Username: Chaunb3400

Huntsville, Alabama U.S.

Post Number: 8177
Registered: Jul-05
http://wickedcases.com/caraudio/charging.html
 

Silver Member
Username: Van_man

Boston South, MA

Post Number: 773
Registered: Mar-06
250/14.4=17.36 So around 20 amps
 

Gold Member
Username: Basshead86

Google is your Friend, FL

Post Number: 4035
Registered: Aug-05
you haev to take into account marc, amplifier efficiency.....

your formula shows that the amp is 100% efficient...which none are.

a very good generic way to go by is in Chauncey's link.

multiply your 20 amps by 1.4 if it is a Class a/b amp

or multiply your 20 amps by 1.2 if it is a Class d amp.
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