# Loudspeakers and electricity **URL:** \ **Category:** Factual Questions\ **Created:** [November 25, 2023, 6:16pm UTC](https://boards.straightdope.com/t/loudspeakers-and-electricity/993691 "2023-11-25T18:16:07Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![LSLGuy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lslguy/32/5813_2.png) [@LSLGuy](https://boards.straightdope.com/u/LSLGuy)\ **Post date:** [November 25, 2023, 7:51pm UTC](https://boards.straightdope.com/t/loudspeakers-and-electricity/993691/8 "2023-11-25T19:51:46Z")
> [@Al128](#): > > is it AC or DC that gets transferred to the LS? Here is 15-year old thread you might find informative: > [@Is an analogue audio signal DC or AC?](https://boards.straightdope.com/t/is-an-analogue-audio-signal-dc-or-ac/474740): > > I always thought that a standard analogue audio signal, such as the one that travels along a speaker wire was an AC current. This seemed to make sense to me as the current travelling along the wire must continually change to induce movement in the speaker cone, but after looking a wikipedia I’m confused. [The article on AC](http://en.wikipedia.org/wiki/Alternating_current)says that audio signals are AC However [the article on DC](http://en.wikipedia.org/wiki/Direct_current) seems to suggest that they are DC. The second quote mentions constant polarity, which I assume means that the curre… --- _[View the full topic](https://boards.straightdope.com/t/loudspeakers-and-electricity/993691)._