A speaker's impedance varies as the signal frequency and an amplifier must therefore supply a varying amount of current to achieve a particular signal voltage, depending on the circumstances.
An amplifier must therefore supply a varying amount of current to achieve a particular signal voltage, depending on the circumstances. A speaker's impedance varies as the signal frequency.
A speaker's impedance varies as the signal frequency. An amplifier must therefore supply a varying amount of current to achieve a particular signal voltage, depending on the circumstances.
A speaker's impedance varies as the signal frequency. An amplifier must therefore supply a varying amount of current to achieve a particular signal voltage, depending on the circumstances.