Sheri, neat to see you here as a moderator. You are the gal who helped me fix a Pro73 owned by a poor college student. She had bought the unit as "brand new" from some eBay seller, but it turned out that the unit was used and had a blown speaker. You sent me a replacement speaker for a whopping $6 including postage. Between the new speaker and me repairing a couple of stripped out screw sockets in the RD case, I was able to quickly repair and fully test her RD to verify that it now performed like new. That college kid was very grateful, and I am sure that I turned her into a Whistler fan for life.