@texbychoice wrote:
You provide an interesting alternative path that can work if one likes massive over-complication that introduces numerous paths to problems.
Explain "massive over-complication." You're replacing a passive crossover on the output side of the amp with an active ditto, so the interfacing complication/bottleneck introduced passively between the amp and speakers is removed and instead the crossover duties are placed prior to amplification on signal level. Yes, you'll have yourself another piece of hardware, but it's not simple added to the chain; to reiterate, you're also substracking a passive crossover, so the power transfer from a dedicated(!) amp channel to a driver is vastly improved and simplified in the process.
As for the claimed "numerous paths to problems," what are they?
Unless big bucks are spent, the number of cheap, wide tolerance, low reliability components increases at least 10 fold over a passive crossover.
A naturally larger low voltage component count on signal level vs a fewer high voltage ditto used in a passive crossover on the output side of the amp is not a comparable scenario as a marker with regard to its effect on sound quality. As in: it's not something you can simply determine with reference to the number of components used, but rather the more important factor is where and how in the chain either crossover option is implemented (if anything a higher component count has a bigger influence passively). Also note that on signal level you can set the filter values much more precisely, and they don't deviate one bit with varying output loads as they do passively.
If spending a few hundred to improve a passive crossover is unreasonable, the russbutton solution is insanely costly.
Not saying a passive crossover makeover for a moderate outlay can't do a difference or be worthwhile for a given someone, but the active option has to be assessed in a wider perspective on how you approach amp to speaker/driver interfacing and your sound reproduction goals ultimately. While active config. may lead to a bigger investment vs. a passive crossover path in a single setup context, it's also one that can enter a very different ballgame sonically and save you money in the long run.

