I have a pair of Monitor 10Bs that I bought a few years ago. I replaced the SL-2000 tweeters with the RDO-194s and am quite happy with the Monitor 10s, especially after setting them up with a subwoofer driven by a two-way stereo active crossover and power amp. However, I am never one to leave well enough alone, and I am looking at doing a crossover upgrade by putting some sort of film capacitors in the crossovers. Before doing that, it came to me that I already have an extra stereo power amplifier and a 3-way stereo active crossover that are begging to be used. Instead of upgrading the crossovers in the 10Bs, I could power the tweeters separately from the 6503s, crossing them over at about 3-4 kHz with an 18 dB/octave roll-off rate rather than the 12 dB/octave of the existing crossover. Has anyone on this forum done this before? What kind of problems do folks think I will run into doing this? It would actually be less additional expense for me to go the electronic crossover route than to go buy some nice film caps.