The IP56 ingress protection rating is a measure of how well-protected a loudspeaker is against the intrusion of solid objects and liquids. The “IP” stands for “Ingress Protection” and the “56” indicates the level of protection provided by the enclosure. The first digit, “5,” indicates that the loudspeaker is protected against the ingress of solid objects such as dust and debris. Specifically, it means that the enclosure is “dust protected” and that dust will not be able to enter in a quantity that will interfere with the normal operation of the loudspeaker. The second digit, “6,” indicates that the loudspeaker is protected against the ingress of liquids such as water. Specifically, it means that the enclosure is “protected against powerful water jets” and that water projected in powerful jets against the enclosure from any direction will not have any harmful effects. Therefore, a loudspeaker with an IP56 rating is well-suited for outdoor and rugged environments where there is a risk of exposure to dust, moisture, and water. It is important to note that while the enclosure provides a high level of protection, the loudspeaker’s performance may be affected by extreme environmental conditions.