Never heard of a "Y" power cable.
When I worked in construction we would make our own power strips (only they were square). We would cut off and discard the female end of a heavy-duty extension cord and then connect the remaining wire to two duplex outlets inside a metal work box with a metal cover.
For audio you could go as fancy or cheap as you want on whatever power cord and duplex outlet(s) you choose.
That is just another option. Personally, I would use a good power conditioner or strip.
When I worked in construction we would make our own power strips (only they were square). We would cut off and discard the female end of a heavy-duty extension cord and then connect the remaining wire to two duplex outlets inside a metal work box with a metal cover.
For audio you could go as fancy or cheap as you want on whatever power cord and duplex outlet(s) you choose.
That is just another option. Personally, I would use a good power conditioner or strip.