Subtitled: Knowing Just Enough To Be Dangerous

This thread got me thinking: http://forum.allaboutcircuits.com/showthread.php?t=93669

Many years ago, I volunteered to help out at a Haunted House fundraiser for the PTO. They had been connecting a boom box to multiple speakers in parallel, some on one channel, some on the other. As I remember it, there were probably 8 -10 speakers total. But the volume was too low.

I got a larger amplifier (300 watts). Then I purchased 8 ohm speakers, wired two in series and then wiring that parallel to another set. I figured that the load in that case would be 8 ohms. This was wired to one of the channels from the amp. The second stereo channel was configured the same way.

Was I just lucky that this worked? How should I have analyzed it instead?

Thanks

 

Intuitively you did the correct thing - how to wire four 8Ω speakers and still end up with 8Ω load to the amp.

That was not luck. That was smart thinking!