What is an MLS signal?
An MLS (Maximum Length Sequence) signal is a pseudo-random noise signal with the happy coincidence that after some serious processing it looks like a pulse, but with much more energy – lower noise levels – than a standard pulse. If you remember any electrical engineering: a pulse contains all frequencies and if you know the pulse response of a circuit (speaker) then you know the frequency response of the circuit. Hence, Speaker Workshop uses MLS signals exclusively for impedance and frequency response testing.
