Here is a Virtual Phono Premplifier preset that will properly decode early LPs that were Equalized with the NAB curve. This is set up to work with an RIAA hardware front - end preamplifier and it will re-equalize it to NAB.
Note: To use this new preset with a flat preamp, just change the VPA "Preamp Hardware" selection from "Standard RIAA Preamp" to "Flat Preamp".
Note: To use this new preset with a flat preamp, just change the VPA "Preamp Hardware" selection from "Standard RIAA Preamp" to "Flat Preamp".