[quote name='jimcroisdale' timestamp='1391016654' post='2352322']
As you can see, I've come under a little bit of criticism - apparently, everybody apart from beginners knows this stuff?
In my experience, many many people certainly do not.
Jim
[/quote]
You are right... but in my opinion you did not dig deep enough.
If it has to be loud, the two "12 or even single modern "12 is more than enough - just like you wrote.
But I tried GK 212, TC 212, TecAmp 212 (best out of those three IMO), and I get much better results with bigger stacks.
With bigger stack you don't have to be loud to fill the room gently but with authority
I always struggled with 210 (pure terrible!!!), single "15 or 212 (best out of those three options).
Now I use 210 + 115 (and everybody says do not mix speaker sizes heh) and I can set the volume much lower than ever.
The sound is finally balanced, finally there are no too loud, boomy or too quiet notes, finally I hear and feel the bass in whole room.
It's not a matter of having speaker closer to ears, because I always prefer to stay away from my cab to hear whole band and the bass in a band context.
To sum up - for the pure volume - yes, your article is 100% right. In real life there's always more than just a volume needed.
Especially when you don't use your amp just as a personal monitor (why the hell should I buy nice amp and cab to use it JUST as a personal monitor? I can use Behringer amp for that!)