New 2-way design using Vifa DX25 tweeter

[BlackUnikorn]

I have a pair of Vifa DX25 tweeters (4-ohm, 93.5 dB sensitivity) and would like to build some studio monitors with them. Zaph, from zaphaudio.com, recommends a crossover frequency of 1800 with lr4 slope. I am looking at my design options and have some requirements/questions:

Baffle step compensation: these will be used as near field monitors, so I guess they will need bsc. How much bsc will be needed?

Sealed box: I'm not sure how this would affect bsc (above). I would prefer a sealed design for two reasons: transient reponse, and gradual rolloff. Will this limit my woofer choices?

Box size: looking at no larger than 1 cu ft for space reasons.

Woofer sensitivity: The tweeters are very sensitive and I would prefer a high sensitivity woofer, instead of padding the tweeters. Again, I guess this will limit my choice of drivers?

Active or passive: Big issue here. Added cost of active xover and implementing bsc in an active design versus proper passive design with more design complexity and expensive caps and inductors. I currently have two amps, so biamping is not an issue. The Behringer digital xover looks interesting, but I dont like the idea of extra a/d d/a conversion.

The requirements for a studio monitor are different than for hifi. Studio monitors need to be accurate, although not necessarily "flat". For instance the Yamaha ns-10's are known the world around for being great mixing speakers because they "translate" well to other systems, even though their frequency response is far from "flat". They have a large bump in the 2kHz region and gradual rolloff from about 200 Hz down. I would like to build something that resembles the ns-10's (sealed), good dynamics, detailed midrange, and similar xover frequency (2kHz) . Deep bass is really not a requirement, since I'll be using a sub anyway.

So, what would be some good midbass candidates for such a speaker? (anything up to 8")