I have a Novakon NM-135 that I purchased as "not functional". What I received had stepper motors but no power supply or drivers. I believe the original power supply was likely 36 or 48v DC. I have since purchased drivers and they are capable of 110VDC. I have a 48v switching supply here but I want to get an Antec linear toroidal supply so I can eliminate any concerns with a nice clean power supply. My question is should I go for a 48v DC supply or 80v DC assuming they are both 800 watts. I'm a little concerned the stock stepper cannot take the extra voltage. I'm pretty sure they can and only low volage=higher amps should be my only concern?