Emu Vintage Keys For Sale. Fully cleaned and tested and working perfectly. All of these need their internal battery replaced - if they're not dead yet, they will be soon. We paid our tech to change the battery inside this unit with a new one so you shouldn't have to worry about doing so anytime soon. This single space rack packs lots of vintage synth samples at a tiny fraction of the price you'd have to pay for all those vintage synths. It's definitely not the same, but if you need real vintage, browse our vast catalog.