Marsh headphone amp from Linear Audio

I’d like to know the current requirements is it +/- 15Vdc at 150mA per channel or less ?
Ideally I’d like to use a 19Vdc laptop supply, is there a well known (not noisy) way to get from +19Vdc to dual polarity +/-15Vdc supply?

Thanks
Eric
Jan made individual articles available for sale. https://www.linearaudio.net/

For a +/-15VDC supply search DK for a DC-DC converter, 2 outputs, 7 watts, Murata or Meanwell. The converter, if necessary, can outboard LM317/337 to remove a lot of switching transients. Make sure to put a choke on the input to the DC-DC converter. Marsh HPA will run well on +/- 12VDC
 
Jan made individual articles available for sale. https://www.linearaudio.net/

For a +/-15VDC supply search DK for a DC-DC converter, 2 outputs, 7 watts, Murata or Meanwell. The converter, if necessary, can outboard LM317/337 to remove a lot of switching transients. Make sure to put a choke on the input to the DC-DC converter. Marsh HPA will run well on +/- 12VDC
Thanks for the valuable info Jack