First questions are: What is the passive crossover of the speaker (DETAILS/ schematics?) and how do you intend to bypass it? Have you actually seen it? Most are a PCB. Is it a 2-way speaker? Do you know of any "tuning" or driver accommodation done by the designer? What do you expect from biamping?
"Conventional wisdom" is 99% ignorance.
My Genesis speakers came with an active low pass/ bass amp but I added a NHT X2 as an active high pass only, without touching the speaker. After blowing a couple expensive drivers, I wanted more security. The drivers weren't completely OEM stock (not available) and this compensated somewhat by raising the crossover point. I liked the simple 12dB/octave, fixed high pass (50, 80 or 110 Hz), which suited my need but is generally designed for subs. 24dB are cascaded and double the op-amps.
Impressed with the transparency of the NHT, for a $300 unit, although I'm sure Marchand, Bryston, Krell and Pass would be better at their cost. The latter two, I believe, are naturally balanced rather than electronically.
Ultimately, I MIGHT go for a DSP/crossover and triamp, bypassing the passive completely and customizing new speaker terminals. It can be done on a computer, with various plug-ins, including some RTA, but I would prefer the analog volume controls and the "completeness" of the DEQX or, if I could afford it, the Holm DsPre1. Also, keeping an eye on what Ashley, TOA and Xilica are coming up with. Behringer, not so much. It's a developing field, both for home and professionally.
The Holm site has a video tutorial of what is capable.
At this point, don't know if 96/192 kHz is going to be a factor for the future.
