Was going to go active with the full range drivers, and OB etc but have decided to go back to mini monitors. My Fav's were the ATC SCM7's, but they need a big amp to get them going, and were not at their best at lower volumes. Now the best after those were the Keesonic Kubs that i had for a while, and bar the lack of smoothness in the treble, they were very similar to the SCM7's but a lot easier to drive.
The Keesonic Kubs, will be using them as a rough guide and inspiration, along with the SCM7's.
The Kubs used a Monacor tweeter (the weak link in the speakers) and a Seas 11DF-X or CA11RCY, which is very very similar to the current CA12RCY made today.
The ATC SCM7's use a Vifa Vifa D26NC-55-06 tweeter, along with the custom ATC 5" Mid-Bass. Again, i feel that the Vifa unit is the weak link.
I am thinking now of starting to plan and design a mini monitor for the next few months, when i will get back on the hifi track, and something to keep me going
I want to combine the best of what i have experienced, and the plan is to go with the Seas CA12RCY and the ScanSpeak D2905/9300. The tweeter choice is down to i had a pair with the Kord Tornado's, the crossover was not matched but the detail and smoothness of them was very attractive, so i would like to include them. These qualities are what i was missing with the Monacor/Vifa units mentioned above.
It would be good to go sealed again, and in my small room (around 8ft square) i don't think it will be a problem with the lack of bass. I am thinking a sealed enclosure of 3 Litres or so, with big chunky walls, like 25mm Plywood.
This is still in the planning stage so feel free to pass comment, good or bad