Anyone have any suggestions?
Thank you very much.
EDIT: I just checked the link and that speaker is specially designed for the centre channel - why would you think it would not therefore work well as a centre channel speaker?
There could be a big problem if you have to turn a regular tower-style speaker on its side. A floor standing speaker has been designed to be used upright. Its dispersion characteristics off-axis may well be very different when it is orientated sideways. You could suffer lobing issues and other problems. Even worse, if the off-axis frequency response suffers from using a speaker in a way the designer did not intend it to be used, then timing and phase response issues will follow on. You could find problems with imaging and a 'phasey' sound.
The centre channel is by far the most important channel in a 5.1 HT system and it is not where you really want to make compromises. Ideally you would have 3 identical speakers across the front, but this is often difficult to accommodate. The next best thing is to choose a purpose-designed horizontal centre speaker from the range made by the manufacturer who made your right and left speakers. Often each model in a range will have a corresponding centre speaker, designed to work, as best as possible, with the R & L speakers.
Oh, sorry - I see what you mean. By 'floor' model they mean one that has been on display*. I was thinking they meant it was a floorstanding model! D'oh! Anyway, it is a purpose designed centre speaker and it is made by the manufacturer of the R & L speakers so it is almost certain it will be a better match than the Yamaha. Speakers from different makers are all 'voiced' differently. Chances are all Klipsch will be voiced in a similar way. Ideally, the one specially made to accompany the L & R speakers would be best.
*In England we would call it a 'display model'.
Hard to say what it is worth as I have no experience at all of Klipsch. We don't get them over here. Speakers are usually a good buy on the used market because they rarely go wrong. If it represents a good saving on the new price, then I'd say it was worth considering if it is in line with your budget. Buying used is a great way to build up a good HT and save some cash at the same time IMO. People are always getting rid of good gear because they have serious Upgraditis.
Virtually all the dialogue in a movie comes from the centre speaker. But there is a reason a centre channel/speaker is essential. Movies are often (usually) watched by more than one person at the same time. If no physical center channel was used, then unless all the listeners were sitting exactly between the speakers (which is impossible of course) the dialogue would be off centre for each listener who was seated at either side of the centre line. Using a centre channel 'anchors' the dialogue to the centre of the soundstage no matter where you are sitting. So the listeners off to the sides still hear the dialogue as though it was coming from centre-screen, as intended 99% of the time. It is by far the most important channel for 5.1 movie sound.