Voltage of the output = sqrt(RMS Power X impedance of the speaker)
  • Example
    Say the amp provides 100WRMS into a 4 ohm speaker:

    Voltage = sqrt(100W X 4 ohms)
    Voltage = sqrt(400W*ohms)
    Voltage = 20V

am i doing this correctly??
Voltage of the output = sqrt(RMS Power X impedance of the speaker

Speakers are 150 RMS a piece so 150x2 is 300 and they are 4 ohm speakers:

Voltage = sqrt(300W X 4 ohms)
Voltage = sqrt(1200W*ohms)
Voltage = 34.64101615137755 V

or should i do 2 ohms because its a mono amp and they are wired as such


this is also confusing because the amp instructions says to match the radio output sensitivity for the level and my radios maual says 2.0v is its output