I hear a nice 10k tone all the time thanks to car races, firing guns, unmuffled lawn mowers, machine shops, power plants, factory floors, fireworks, exploding bicycle tires, homemade explosives, and anything else that could assault my tender young and unprotected ears. The stupidity of youth!
Fortunately I had a job in my 20s where hearing protection was mandatory when in the production areas. After getting used to that, I still wear my earmuffs when mowing or using other noisy yard equipment.