shouldnt be hard to tweak it to go below 50v. When I get it I'll have a look, also will advise on best way to replace the output connector with something more cost effective as the DIN41612H connectors are £10+ each without the shells. The connector on the supply is a male, so it may be possible to use female push-fit spade connectors directly on the terminal pins.
Thanks Irving,

I was hoping spade connectors would fit too, otherwise I was just planning to solder directly to the pins (not pretty), or open the box and find another way.

I'd read about energy dumps for back EMF during deceleration, but didn't think that would affect steppers so badly. Anyway, it would be great if you could let me know about voltage adjustment when you get the supplies.....