Your Variable Audio Out jack is designed to feed a stereo sound system, through an 1/8" stereo plug to two RCA plugs/jacks adapter*.
No way to power a pair of speakers directly.
*ie:
https://www.amazon.com/Pearstone-Stereo-Mini-Dual-Y-Cable/dp/B00NLOPQUG
or:
2V is plenty to drive any receiver/integrated, of your choice.