? If I can stick my oar in the water here, the whole point of my starting this topic was to allow people to post videos (or links to same) so that others could make up their own minds. There are merits to all of the above arguments / discussions but, ultimately, we need to hear the various sounds and combinations of speakers to make up our own minds - it is, as has been stated elsewhere, a VERY subjective area.
There are several possible spanners in the works too. One is the owner's operating environment; each of us has their own different environments that may vary from the posted videos and, therefore, alter the requirements for particular speaker and sound combinations.
Another variable which we don't have a great amount of control over is the rather necessary compression that has to take place to make the videos small enough to transmit via the Internet.
And yet another is that appreciation of the sounds comes down to very personal tastes.
Even so, most of the above discussions are helpful in explaining why some combinations work the way they do. My own experience with a Howes class 50 was that there was no discernible difference between using a large rectangular speaker plus a standard round one, and using a bass reflex plus standard round one. I took the bass reflex out after testing that and used it in a more deserving project - a Hornby class 60 which really did respond well to having the bass reflex installed in place of its factory-fitted large rectangular speaker. I must emphasise that the above judgements were my own personal opinions and don't make anyone else on here wrong in what they say.?