How would you finish this?

More importantly, how should I finish it. I do not have experience sanding back paint all the way to a piano lacquer gloss type finish. I want my cabinets to be all black. I have the cabinet divided 50/50 but not directly down the front panel . Instead I have drawn a 2-inch line down one side which then curves between the woofers in an S and then continues the same two in down the other edge of the speaker front . So it's a dividing line with a dinner plate size curve in the middle one side of the line starts on the right , then curves across the front panel and keeps going down the left. The curve dividing line down the middle is supposed to separate a high gloss black, and a satin black. Wow I could paint it, I have never been able to get perfect results with paint. I was thinking trying to vinyl wrap this, but do not know if those curves on the front panel would create a nightmare to try to get to stay down. Can you please advise me? Thank you very much
 
flaxxer,

piano gloss executed flawlessly is mostly about a perfectly prepared surface, and less the paint. It can drive one crazy like nothing and it is awful lot of work. I have done that and I won't do it again, instead veneering is my preferred choice of finish, even if it is to be covered by black paint. I have made simple rig to more easily apply pressure with a clamp so the panel that directly pressing the veneer does not rotate anymore.


fatmarely,

perhaps you should test first will pva adhere to synth leather properly. I am not sure it would.
 
This would be a challenge even for a pro Flaxxer. I'd consider (2) shades of black paint. You could spray the "lighter" shade over the whole .. then mask your design and spray the "darker". Follow up with a clear top coat over all.