I have this one I like it because of how rounded and smooth it is. Less stress and wear on soft shackles.
KING-PRO Shackle Aluminum Hitch Receiver 2 Inch, 22000Lbs Break Strength for Soft Shackle, Towing Mount Accessories for Trucks, SUV, Jeep, Vehicle Recovery Tow Strap (Black)...
My speaker does many similar things. At my last visit to service they could not repeat any of my problems with it, but told me these are known issues and hopefully will be fixed in the future updates.