The speakers were used in our old church building, and when we moved a couple years ago, the new building had a Soundsystem already, so these have been stored in the building for a few years. We had them daisychained three on each side. But can obviously be used separately. All should be working well but feel free to come and test them. These are not powered, they use an amp. I have an amp here if you want to test Them or bring your own. I have six speakers and two large subs. Willing to sell speakers separately, one or all. Speakers are $140rr each or 700 for all six Subs are $500 for the pair Will entertain offers Located in Bothell (Monte Villa Parkway)