Griffin Technology is now shipping the iFire Amp and Adaptor for Apple Pro Speakers.
Griffin iFire Now Shipping
“Griffin iFire allows any computer with FireWire or an iPod with its charger to connect and power the popular and stylish Apple Pro Speakers. Previously, only a few select models of Apple computers could use Apple Pro Speakers. Now with the Griffin iFire, even Apple Notebooks and the new G5 computers can connect and enjoy the Harman Kardon designed Apple Pro Speakers. The Griffin iFire retails for 39.99.”