Do I need to add a heatsink to the Hypex amplifiers to cool them?

Amplifiers must always be operated with an appropriate heatsink to prevent overheating. Even the highly efficient UcD700, with 90% efficiency, dissipates up to 70 watts at full power. The simplest solution is to use an all-aluminum enclosure to mount the amplifier. If a steel enclosure is used, a standard aluminum heatsink should be installed inside. Additionally, ensure adequate airflow within the enclosure by incorporating venting holes. For further details, please refer to the "Thermal Design" application note.