Every musician and sound system can benefit from advanced Clean Power Stage 3 AC line conditioning technology, combined with a high level of surge protection in the affordable PRO 3500. Featuring the T2 and Tri-Mode surge protection circuitry from our high-end units, PRO 3500 provides serious protection at an attractive price. Use PRO 3500 for portable racks, small studios, budget-conscious theaters, clubs, and project studios. Creature comforts for road use include XLR lamp connections for hooking up in the dark, and easy-to-read digital meters.