Commercial audio and radio equipment, systems and accessories -- products and standards

This category covers audio equipment intended for use in commercial areas and in locations such as churches, schools and theaters. The products included are as follows:

• Power amplifiers
• Public address (PA) systems
• Mixers, preamplifiers and signal processors
• Special effects units
• Powered speakers
• Tape erasers and head demagnetizers

The Standards used to evaluate the above products are:

NOTE: The UL 813 Standard and the UL 6500 will be in effect until January 1, 2010.