RCA inputs too wide for plugs

[Ratnaguna]

I'm trying to set up my new equalizer but have discovered that the RCA inputs are a little too wide for the plugs! Which means that the plugs slip out of the inputs. Should I return it, or is there a remedy?

[KenMitchell]

Hi Gary ( @Ratnaguna ), 

Welcome to the community. This is usually caused by a worn out cable not the input jacks themselves.  Can you take a picture of the plugs and jacks so we can have a look? 

Ken