Help needed for old headphone amp

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hi, am new here & need some advise please!

got an old audio alchemy v1.0 headphone amp that just screwed-up.

it comes with a "power station one" power supply which i think should be the culprit.

where can i buy a similar one locally? how much will it cost approx?

i dont mind if of a lower quality, as long as can work on my amp. cos i seldom use headphone.

 

specs of on the"power station one" .... +-14v, 400ma, 15w, 220v, 50hz.

 

thanks!