View Full Version : vent mach

05-05-2003, 07:47 PM
what is a good vent mach speed? in winISD, it seems like anything above about .16 is in red...which im assuming is bad. i was just wondering if there was a specific speed i should be aiming for? i just built a sealed box and have a lot of mdf left over so ill be taking a stab at making a slot port box tuned to around 40-45 hz for a single 12..or maybe two chambers for two 12s for competitions. thank you