Saying that bookshelves are inferior by design, to me, sounds just like those audiophiles saying that bookshelves are the only way to listen to music. Both are extremes.
As far as music goes, they keep coming back to their battery operated squawker.
Not liking to go off topic, but:
Oh, no Killdozzer, both large and small speakers have their place - one is neither better than the other for a certain task, and I'll try to explain this the best I can - to enjoy listening to music as it was recorded, you sort of need to have the exact same small near-field monitors and large far-field speakers in a room that is the same as the control room or the post production suite where it was mixed/EQ'd. This is going to be difficult to achieve in any normal room in any house regardless of 'tuning it' or matching it with the speakers - there is always going to be a degree of 'colouration' we have to live with (which is still pretty good in most cases). Also, recordings never publish what speakers the track was mixed with - so there is no chance.
I can certainly say that the smaller speakers do not sound as full (i.e. extended bass response) as the larger far-field speakers in a studio. If you have ever been in a top studio or post production suite, which I'm sure you may well have, and listened to the sound - you'd agree that it's
staggeringly impressive - and I mean, '
staggeringly'. They will mix with both near and far field speakers - therefore, saying one is better than the other, for listening to music, is not right.
They rarely have Subs (some studios do, and some don't), because the far-field speakers are often MASSIVE and could probably extend into the infrasonic range. When you switch over to nearfield with a sub, the sound is a little stratified by comparison, but they test the mix with them because that's the setup one has for watching films etc. Some still test the mix with the old Yamaha NS10S monitors (
which is still on-topic I guess) - which are an acoustic suspension design, tighter than a.....tight thing. Some hate them, but I love them because the mix sounds so 'together'.
ADDENDUM: Just to throw U-turn into the works - I known some engineers who also test the mix with the said battery operated squawker.....
Nevertheless - this is my opinion and my opinion alone.