I have a cheapo Tannoy SFX 5.1 speaker system from a few years ago. It apparently was available with a dedicated centre speaker, with two mid drivers in it, or just 5 satellites. I have the latter.
Question is, why do centre speakers often have two drivers like that? Is it just to increase sensitivity ie more volume for the centre channel? If so, why is this different from just turning up the centre channel in the amp setup?
I often have difficulty hearing the dialog in movies. I thought maybe this was because the dynamic range of the audio track was so great, perhaps because people like really loud explosions and stuff when everything else is at normal levels. I'm often listening when the kids are in bed so I'd rather have sensible explosions and be able to hear the speech.
Would a centre speaker with two drivers help? Is it possible to just wire up a second satellite in parallel to the centre to achieve a similar effect?