Power Supply Replacement For LP-16?

My group loves the LP-16, but we are becoming more and more reliant on it for shows. There is a growing concern about the power supply being a single point of failure. We would like to have a spare on hand, but we can’t find the model that came with the original unit for sale anywhere:

MODEL: YS25-1201000
INPUT: 100-240 VAC 50/60Hz 0.5A
OUTPUT: 12VDC 1A

The manual, section 1.1 says “Be sure to use only the supplied 12 V DC, 1000 mA AC adapter, which is equipped with a “center-positive”
plug. The use of an adapter other than the specified type may damage the unit and could pose a safety hazard.”

Does Cymatic sell replacement parts\spares? Would any universal adapter do? Is there a recommended model? I don’t want to risk frying the unit if there is anything special about the “center positive” adapter that came with the original.