Each size is optimized to get the most from your particular speaker system.
Stands can be configured to 4" or 8" in height, with inserts that provide a variety of tilt-up and tilt-down adjustments. In the lowest configuration, the monitor can be tilted down to focus the tweeter to a height below the original supporting surface - providing superior isolation and sound improvement.
ISO-L8R200 Short: In this case, the audio speaker stand is configured for 4" in height. Speaker can also be tilted for optimal listening angle. Usually speakers will be situated on a desktop or table
ISO-L8R200 Long: Speaker stand is configured for 8" in height. Speaker can also be tilted up or down for exact listening angle. Can also be used for floor applications.