Heinz
You are obviously a born audiophile even if you are not strictly a practicing one. Not many people would make the connection between the Klipsch sound and the Tannoy Westminster as they couldn't be more apparently different when compared.
However looks can be deceiving and in fact the sound character is similar, although the Westminsters do bass much better. But transparency, soundstage and realism are pretty much on a par.
I currently use Klipsch Heresy 3s. The reason I don't use Heresy 4s is because unlike the 3s they are ported. This gives more lower bass than the 3s but the bass is smeared and a lot less articulate and this is true of all the Klipsch right up the range until you get to the La Scalas.
There is no doubt the Heresy 3s lack a bit of lower bass but they are brilliant at everything else. Because they are an infinite baffle design, an additional subwoofer can be successfully integrated. Ime ported speakers and subwoofers can never be successfully integrated as the smearing effects of ports cannot be overcome successfully. This is worse than not using a subwoofer at all. I designed and built an infinite baffle subwoofer as the Heresys are very fast and a. slow sub would not do at all. I then spent a couple of weeks tweaking until the crossover point was inaudible. I now have a speaker setup that sounds very similar to the Westminsters but do not take over the whole room.
PS
I know I could make your Oracle sound better by changing the SME V for a Rega RB300 (original RB300 with tungsten counterweight). Perhaps details may emerge later in the thread.