I got a hold of an old busted AC30 cab. No speakers and no amplifier. Just the wood box. But I did have a little 50W Vox MV50 microamp laying around doing nothing so I figured I'd get the two together. I picked up a pair of 8Ω Peavey Blue Marvels relatively cheap, mounted them with minimal modification to the cabinet, and wired it all up. Now to my question: the output switch on the amp has selections for 4, 8, and 16Ω so I can wire these however I like. So, what's the advantage of series over parallel or vice versa? Right now I'm running them in series and have the amp set for 16Ω. Unless my math is wrong, if I were to run them in parallel, the total impedance would be 4Ω, right? MV50 output label: 50W @ 4Ω 25W @ 8Ω 12.5W @ 16Ω Any input? Thanks everyone.