If you have any signal issues after the preamp and/or distribution amp with a splitter, my recommendation would be to get the Clearstream 4V. I had the 2V and upgraded to the 4V and the signal quality improved substantially.
My setup is Clearstream 4V -> RCA preamp -> 50 feet of cable -> Winegard HDA-200 distribution amp -> Tablo (as the Tablo has an internal 1x4 splitter)
Good quality preamp:
Distribution amp where you can put any splitter after it: