Lowes has a flat black, Icon series for about $20/gal, makes a great first coat/primer surface sealer defect detector. dries in a heart beat and if you thin it a bit, apply with a foam roller, you can keep texture to very low and get a sealed surface for more control the far more expensive duratex top coat. it also sands easlily enough it you want to minimize grain raising or mdf surface swelling.
Denon X5200 , Emotiva UPA7, for 7.3.4
Klipsch F3 FL/R, G-28 CenterLow, Icon 25 CenterHigh, RC3II: SL/R SLX: Rears ,TF & TR, RB51's:FH
2 30" BF THTLP'S and SubMaximus and Inuke6000DSP
Mitsy DLP 73738 Xbox1 PS4 Panny BD 220