Amplifiers: keep ventilation paths clear

Heat and dust are important factors in the life of many amplified devices.

Do not block grilles and ventilation openings with fabric, objects or dust build-up. Check that fans and external vents are unobstructed and provide the clearance specified by the manufacturer.

Cleaning the exterior and ventilation area does not mean opening the chassis. Dangerous voltages may be present inside amplifiers, especially valve designs, even after power has been switched off.