Generally speaking your speakers will tell you when you're approaching your max volume, regardless of how much power your rig can use. Depending on your settings your max volume might not actually be anywhere near your max output. You just wouldn't want to hear most speakers playing past their physical limits. You could seriously damage them and not be giving them all that much power. Low frequency reproduction requires a lot of movement out of a cone, and a fair rule of thumb is that the vast majority of bass cabs do not sound stellar in the real world with signals over half to two-thirds of their rated power when using a bass.
That said, a rig rated 800 watt with a pair of cabs that match well will be hella loud for most folks.
More cone area equals more volume, so a pair of 210 will not sound as loud as a pair of 410 with the same power. There are of course some (expensive) exceptions to that, but basically that's the reality.
That said, a rig rated 800 watt with a pair of cabs that match well will be hella loud for most folks.
More cone area equals more volume, so a pair of 210 will not sound as loud as a pair of 410 with the same power. There are of course some (expensive) exceptions to that, but basically that's the reality.