actually, the facial label is like laminated sticker so the logo and other writings didn't strip off. .. 
have plan to completely peel-off the sticker, clean the metal plate and repainted again. 
problema the logo and the writings... 
You might consider vinyl sticker/decals na all weather - sa mga malls kasi dito they have kiosks na pwede ka magpagawa ng custom sticker/decal.
The only problem with vinyl is that they only do that in 1 color - so if your "crown" logo is in white over black background, then thats parang 2 stickers - stick the black background first tapos ipapapatong mo lang yung white crown logo on the black background. In effect, masasalat mo ng konti yung crown font - parang embossed sya.
On the other side naman - it will be a silver sticker tapos ipapatong mo nalang yung mga ibang fonts - on, off, thx, etc.
Computer naman yung paggawa nila ng decals, so just provide the exact measurements to them - tapos balikan mo lang after 1hour and its done.
Yung multi colored sticker/decals that you buy in stores are computer printed in printing shops - they have a minimum quota and normally done in hundreds if not thousands, mahal mag pagawa ng one-off - that is if they will even accept your single, one-off order
In your amp above, you can also paint the black & the silver - tapos pagawan nalang ng white crown sticker and 800 CSL. the off, power & THX sa black sticker naman.
The only problem I see is if the sticker shop has the exact font in their computer files - if not, you have to provide them the exact font design in paper tapos i-scan nalang nila.
