@ MellyMelSr - Congratulations on a great purchase! What a great story too! I've got two RV B90's, one that I just recently acquired and I thought it would be a good story to tell. Nowhere near as good as yours but a good find nonetheless. The first one that I have I bought brand new in 98 or 99. Over time the knobs got gooey and the cassette started acting up. I - like many KaBoom owners just don't want to let it go. I found an authorized dealer to check it out and they told me that it would be at LEAST $100.00 to check it out. I suddenly became apprehensive and while I kicked the notion of paying that much for a possible repair, the lady showed me one that she said they used in the shop for background music. I was like wow! It's just like mine. She told me that they couldn't get the part that it needed and the customer therefore abandoned it. I went home a little desponded but never forgot that unit sitting there. And then I got the idea that maybe they'll sell me the parts I need. I went back there a couple weeks later and asked the guy (this time) if he'd sell me some parts and he agreed, and then asked if he'd sell the whole thing, and again, he agreed. I asked how much? He said $25.00, and I got the unit now. What was so amazing to me was the unit worked perfectly except the cassette( just like my original one), which is alright with me because I don't listen to cassettes anyway. I stripped off the goo from the woofer covers and the knobs and bought a blue tooth adapter and have been jamming ever since. The $25.00 unit didn't come with the remote or strap but it come with all the BOOM they're famous for. That's it in my avatar.