Abstract: The low frequency restorer of the invention restores the DC and low frequency contents to a digital signal which has been submitted to magnetic recording, playback and equalization processes. The restorer first provides a coarse representation of the originally recorded digital signal by clamping and subsequently hard limiting the equalized signal. The hard limited signal is then low pass filtered and the resulting signal, which is an approximation of the missing DC and low frequency components, is utilized as a correction signal, which is summed with the equalized signal, to restore the missing components. An alternative embodiment further eliminaes low frequency cross talk from the equalized signal by high pass filtering the equalized signal and low pass filtering the correction signal prior to summing.