Quadrophonic Speaker Setup

Making a quadrophonic speaker setup using 4 speakers, audio interface, pc

Quadraphonic audio and speaker set-up

What is a quadraphonic audio and speaker set-up?

As the word quadra in quadraphonic implies it is a 4 channel audio format and speaker set-up. It is a basic configuration to achieve a simpel immersive audio experience and is considered to be the predecessor of surround sound like the Dolby 5.1 set-up. Within this book we wil show you some examples with different software. The quadraphonic set-up can be used as a classic 4 channel listening experience for 4 channel music pieces, or as a simple immmersive set-up for art installations or performances. 

source https://stereosociety.com/foursides/

Required equipment for a quadraphonic audio and speaker set-up.