Zoomhash website told me to buy this one here, which works well, though its no longer available.
http://www.ebay.com/itm/Global-AC-DC-Adapter-Charger-For-YSX-YSX127000T-Power-Supply-Cord-Mains-PSU-NEW-/351013848783?ssPageName=ADME:L:OU:US:1120

I would guess in the "More chances to get what you want" part of the same page at Ebay that most of those would work as well as long as its 12 volt output with 7 amps.