Build Your Own Arcade Controls Forum

Main => Audio/Jukebox/MP3 Forum => Topic started by: launton on June 25, 2011, 01:54:04 pm

Title: NSM Performer wall speaker polarity
Post by: launton on June 25, 2011, 01:54:04 pm

Hi all

Just bought one of these but could do with someone having a look at the included picture and telling me if it's correct.  I don't want to damage my speakers or system with incorrect polarity.  The manual shows a 'triangle'? on one terminal but I don't know if it's meaning + or -

(http://www.cyanphoenix.com/launton/polarity.jpg)

Thanks, any help would be brilliant as I don't want to damage my jukebox or speakers

Title: Re: NSM Performer wall speaker polarity
Post by: lilshawn on June 25, 2011, 02:16:31 pm

the triangle shows the positive.

P.S. - having reversed polarity will not harm speakers, but it will introduce a cancellation effect since the wave will be reversed.

it's quite common to reverse subwoofer connections when the output is being reflected off a wall so the wave actually ends up being back in phase again after the reflection.

Title: Re: NSM Performer wall speaker polarity
Post by: launton on June 25, 2011, 03:05:40 pm

Thanks for the speedy reply!  :) That's perfect.  :notworthy: