I have a president HR2510 and a 148GTL both radio's fully modded but the President doesn't really go below 4 watts and swings to 25 watts or more. I use them both with a antenna switch to operate between the two radio's. I use the President HR2510 most of the time barefoot but don't want to use the KL-503 so I hooked up a little 50 watt amp and was wondering if the EM Italy KL-503 is turned off can you safely run 50 watts through it? Thanks for any replys.