The Emperor-4 beam tube was a beam-tube produced by Timms UniStar Armaments during the early years of the Galactic Republic.


The Emperor-4 was powered by a large backpack power cell weighing over thirty kilograms, commonly fixed to a heavy blast vest. The weapon itself weighed over fifteen kilograms, and the wielder was required to use a two-handed grip. It could fire one hundred shots on a single power cell.

Beams were generated by four cyclers, twelve sensitive refinement tubes and twelve low-grade crystals. The components were protected by twelve cooling motors, though the Emperor-4 generated massive amounts of excess heat. Further, the coolers directed hot air into the wielder's face, and the weapon required several seconds to process enough power to fire.