RE: Anyone out there using the PowerBox Royal Spektrum 12K
Hi Bill.... I have not used a Royal, but have used the SC 12 Champion for many years (7 yrs) & 2 years ago I switched to the Champion RRS Powerbox. It works extremely well for me & I have not had any problems. The RRS has a "dip" switch that you can run the servos at either 5.9v or 7v depending on your preference. The RRS Champion also has a 12 servo bank that you can adjust (match) aileron servos and also rudder servos.
There's a lot more to say but too much typing...
If you wanted to, my # is 770-424-2102