I have just purchased a 2510 I paid $75.00 I have read that it has no power variation pot but I found that to be untrue. I have turned it down to 1 watt but it swings to nearly 30 watts don't know if my RM Italy KL-500 could handle this kind of swing. Nice radio but I am a little spoiled from my 148GTL in receive and audio noise blanker not as good. It has the 11 meter conversion and the radio is cosmetically great and seems to work flawlessly. I am not sure how you hook up a external speaker which would probably help on the receive end. Any tips on this rig sure would be appreciated! Thanks