I'm running my two-way Apogee Duetta Signatures with a Marchand XM9 active crossover. One thing you always have to be concerned with when going to an active crossover is that you can smoke a tweeter or midrange driver fast. Remember, once you go active, you have by-passed any and all filter capacitors connecting to the tweeter and(or) midrange drivers - any frequency can pass to these drivers now. For this reason, it is imperative that your amps powering your mid-ranges and(or) tweeters must not pass any DC, and must not have any power-on "tumps" as well. You would be surprised how may good amps pass a little too much DC to be used for bi-amping.
Anyway with that being said, since I have gone active, I'll never go back to passive - at least with this set of speakers.
Anyway with that being said, since I have gone active, I'll never go back to passive - at least with this set of speakers.