Does anything plug into it? If yes then active. The only exception is motorized screens and mounts.
Anything else is an Active Component.
Before any component can be classified you need to answer the question; what is the primary function of the device? Does it fit into any of the categories below? Each Category will have a set of keywords that will be UNIQUE to that specific category. A good test of the validity of the Category Keyword is to google the keyword or keyword phrase in " " and the category name without quotes and see if the first page of the results matches the expected category. Check out the result for "class d" amplifiers as it relates to the Amplifier category http://www.google.com/images?hl=en&q="class%20d"%20amplifier&um=1&ie=UTF-8&source=og&sa=N&tab=wi
The fields in each Category spreadsheet are used to further describe each Category Type (Sub-Category)