Freeware - IK Multimedia T-RackS CS
"First, you'll find that you already get two pieces of free gear just for being you. You can’t beat that deal! You get the Classic Equalizer module, a 6-band parametric mastering EQ that’s part of the T-RackS Classic bundle, and we’ve also provided you with the T-RackS Metering Suite, which contains a host of useful and detailed displays including Peak, Perceived Loudness, Phase, and RMS meters, plus a Spectrum analyzer with Peak, RMS and Averaging indicators. Both the EQ and meters can be instantiated as separate plug-ins in your DAW, or as part of the integrated T-RackS shell, which features 8 plug-in slots, and allows you to chain up to 12 processors."