Hi folks. I have a 3 channel dual rectifier reborn, but I'm having an issue. When running my MXR eq in the loop, when frequencies are higher levels, my rectifier clean channel starts crackling. I don't think it's the tubes because there's no squealing when tapping them and it only does it when the EQ's frequencies are raised. No crackling if EQ is bypassed either. Any help from people knowledgable about amps would be appreciated. Thanks.
