Premium Upgrade FX pack allows you to use 4 channels with 4 FX instances each, which is four times what you get with the Basic FX pack. The Premium Upgrade FX library currently features over 70 Antelope Audio real-time FPGA FX, including Vintage EQs, Compressors, Guitar Amps & Cabinet models, Mic Preamp Emulations and Reverb. All of those can now be used in your preferred DAW with the AFX2DAW plugin provided in this premium pack.