Thank you all for your advice!
I now use an SXR4, old model, a couple of lectrosonics 210, an Audio Limited A10 dual channel system, a two channel mixpre (non digital) if I need more mic inputs to feed the line inputs of the recorder.
Let me tell you the story behind my request.
The new year is giving me the oportunity to work on a 7 weeks movie, not a big one, but not an indie one.
Since I wish to upgrade my SXR4 for some time, this movie, a 3 weeks documentary around the world in June, and some other jobs, are a good occasion to upgrade and buy something new; my wish list is: SXR4plus, RC8 controller, a second wide band dual channel radio mic system, an active antenna splitter.
My first question, for the RC8 users is how useful it is? I can imagine it's useful on a movie, to solo each track during a dialog scene, and to speak to the boom operator by the slate mic; but do you find it useful in other situations too? In a one man band situation (my 90% jobs to this day), for a documentary with 3/4 radio mics and a boom, is it worth the extra cost, in your opinion?
An active antenna splitter is of course useful in a movie, but maybe in a doc I could go on using the whips, or use a passive splitter with my two lectro sna600.
Powering everything from the dc output of the SXR4plus is a good solution if I use only one A10 system, but, if I buy a second one, the 7 W recorder output is not enough to feed 2x 4,4 W A10 receiver. I could go with the new small dual channel Wisycom MPR52, or the mcr42, but I do not know if using different brands with different technologies is a plus, since you have different weapons, or a minus, since you could have different sounds.
About the bag, my first question, I already own a big petrol 614, a small petrol 607, a small Camrade/Souns devices Bag; it was for a SD302 mixer, and from the picture I think it's close to the Portabrace you show me Patrick. So I'm looking for a compact bag able to be adapted to the audio kit I'm thinking about. The Ktek small Stingray seems to be a good choice.
Thank you again!