DB you 5.8 is 19 db prototypes, the ones shipping now are 17 db ( 50% smaller ) , this is for a more compact system.I believe my 5.8 is 19dB and if I'm not mistaken I Horizon has tested the 17 dB 5.8 panel and has concluded that they're a little better. Are your 2.4 panels also 17dB BeauS?