Seems like most of the 410s I see are ported. Are sealed cabs going the way of the dodo bird? I have never owned a sealed cab, but I thought the point was to have all the sound focused into a tight range for maximum transient response, maximum punch with less room boom and less bass room node cancellation from lows being too deep. With most of the 410 offerings being ported now, is that unique type of voicing just not there? If not, might as well stick with a stack of single woofer ported cabs (15/6, 12/6, or similar) for a lighter transport. Not trolling, just need some real education.