Furman ST 231 Equalizer making popping noise


New member
Username: Garagescreen

Post Number: 4
Registered: Jan-15
When I press in High Pass Filter button to engage I get loud popping noise in my speakers It does not happen when I press Low Pass Filter Button
Why would it do this

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 18049
Registered: May-04

A dirty control switch?

A capacitor about to fail?

No way to tell without tearing into the unit.
Most switches are now sealed from the environment. It's difficult to simply flood the control with tuner cleaner and solve a problem. And you risk flooding the circuit more than the switch if you just begin spraying cleaner without any idea how to actual clean a switch.

Have a tech look at the unit. Ask for an estimate of repair cost before proceeding with any work.

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