Reply To: Fender Harmonic tremolo Shop › Forums › Quaverato Forum › Quaverato FAQ & Support › Fender Harmonic tremolo › Reply To: Fender Harmonic tremolo November 12, 2018 at 9:17 am #6564 brachParticipant The Fender Brownface used around 150Hz for the low pass and around 700Hz for the high pass. Good luck!
