A DJ stand means a variety of different things depending on the context due to the sheer number of things both an amateur and professional DJ needs. Different equipment needs varying support depending on the amount of space it takes up and its overall weight. Plus, the available options for each bit of equipment also varies depending on materials and how easily they are stored. A basic laptop stand is a fairly standard option that is easily moved from location to location, as needed. Lightweight, and eminently portable, it doesn't suffer from the problems of a larger option, but is more readily shaken from its location due to a lower weight. By contrast, speaker stands available from eBay's reliable sellers work to hold the weightier bits of audio equipment. They are also more adjustable than a laptop stand and, as a result, end up taking up more space. Many setups, however, capitalize on this for a higher degree of stability. Much as with most complex things in life, your choice of a pre-owned DJ stand depends on your particular needs. Finding the right one only improves the setup you're involved with though, as well as your level of success.
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