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 ATMOS/DSU
Klipsch FL/FR: F3 , Center: Icon 25 , SL/SR: RC3II , SRL/SRR :Icon 36 Towers, TF & TR: SLX
2 30" BF THTLP'S and SUBMAXIMUS and Inuke6000DSP
SHARP 80" LED/LCD, Xbox1 PS4 Panny BD 220