KURZWEIL K2500 KEYBOARD & RACK DIY POWER SUPPLY REFURBISH KIT!!. Condition is "New". This is an auction for a " do it yourself" power supply kit for Kurzweil K2500 Keyboard or K2500 Rack. These are top shelf components and a detailed list of upgrades is supplied. If you have any questions, please email me. S&H will be free. Check out my other Ensoniq and Kurzweil gear. Happy Bidding and God's speed !!