Just found this in my message box: Quote: Originally Posted by from the transcendant sound newsletter Dear Customers, Headphone Amplifier I have decided to go ahead and develop a headphone amplifier kit. People keep asking for it. It will be a simple open chassis arrangement with a volume control. I might be able to do it with just two tubes. It will probably be point-to-point wired to keep costs down. Power output will be in the neighborhood of 500 milliwatts into 600 ohms. Cost is projected to be around $300.