Most homes do not have a lot of free space to put in electronic gadgets. Most likely most of your table space will be crowded with items that you never had the time to put away. As space is precious, manufacturers have been busy refining their product to make them smaller. One of such example are audio amplifiers. Lately some ultra-small models have appeared that are no bigger than a deck of cards. You can get an overview of current models of small amps by looking at online retailer websites.
These small amps beg the questions how small can audio amplifiers ultimately get? In this post I’ll try to answer this question by looking at several factors that keep designers from making amps indefinitely small.
One of these factory are the audio connector. Audio amps need to offer speaker clamps to attach the speaker cable. These clamps have a certain height and width which dictates the minimum height and width of the amp. Other control elements such as indicators or volume control knobs also require space.
Aside from the physical constraints imposed by connectors and control elements, audio amps also cannot get indefinitely small because they have to radiate a certain amount of power as heat. This requires a certain surface area for ventilation.