Hi,Commonly used speakers in | Projects › Projects › doubt regarding classroom mic project › Hi,Commonly used speakers in April 7, 2014 at 4:51 am #11490 AJISH ALFREDParticipant Hi, Commonly used speakers in hobby circuits are 8 ohm, and less than 5W. If you are not using power amplifiers, then it would be safe to use a speaker with power rating 0.5W
