Biamp question

avanti1960 - I don't agree with the benefits you've listed, not even one. Nothing is going to give you a flatter impedance or response curve than eliminating those capacitors and inductors. Together with variable crossover points and or a DSP, you will accomplish everything you have mentioned much better and greatly reduce intermodulation distortion. I know you won't agree, but that's what this forum is about, sharing opinions and knowledge. Happy listening, no disrespect intended.

The Legacy SE crosses from the woofers to the 7" mid at 180 Hz. 

Bi-amping without a crossover loses all the benefits of bi-amping. I.e. the additional 6dB additional headroom .

Baffle step compensation, impedance leveling, and frequency equalization are all lossy, passive functions attempting to fix basic design flaws already dealt with in the overall speaker design.

Biamp, but do it right - ask Legacy for their recommendation.

@backdoor 

agreed, bypassing crossovers can work and work well but DSP per channel with parametric EQ and knowing the driver's parameter are musts.  

DSP is also a rather large rabbit hole.  took me two years to fine tune my car's active 3-way plus sub system.  

panzrwagn - Looks like you are correct about the 180Hz. crossover point to the 7" driver, guess I missed that. I’m with you on using an active crossover, don’t you think the internal crossover split is at 180Hz. for bi-amping, not 2.8kHz.? +1 to check with Legacy first. I'd be quad amping with 4-way crossovers, but OP should NOT jump to this.