Using your Kanto S4 speaker stands is easy. First, place the stands where you want your speakers. Then, take your YU4 or other compatible speakers and use the provided 1/4'-20 screw to secure them to the stands. Adjust the 16° tilt to get the best listening angle. When it comes to maintenance, keep the stands clean. Wipe them with a dry cloth to remove dust. Avoid using harsh chemicals as they might damage the metal and foam padding. Make sure not to exceed the maximum speaker weight of 8 lbs per stand to prevent any damage. And that's it! Enjoy great sound with your new speaker stands.