HU or Amp Active Filters

[RJesus 10+ year member]

Running the xovers from the h/u will allow adjustment of them 'on the fly'. Running both does nnot work as a back up, they actually stack, altering your slope.

is this better? like a 48 db slope instead of a 24 db?

 

[audioholic 5,000+ posts]

is this better? like a 48 db slope instead of a 24 db?

In simplistic terms, yes that is what would happen (two 24db slopes stacked would be 48db per octave). Whether or not this is better depends on the situation. A lot of people would say a steeper slope is always better, but the reality is sometimes a shallower slope will sound better, depending on the exact speakers being used, the exact xover points, the exact situation, and of course listener preference. For example, many people prefer a shallow 6db slope between mids and tweeters, where as steeper slopes on subs is usually beneficial.