For everyone complaining about the fan noise, I would gladly trade my KPA500 and KAT500 for your noisy KPA1500 at a reduced rate. With 40% hearing loss, I'd love to hear the KPA1500. I mounted an IBM mainframe cooling fan on top of my SB200 to keep it cool while working DX. You want to hear fan noise? Larry, KN8N Sent from my Verizon Wireless 4G LTE DROID