Just a technical note. The RAAL's vertical dispersion isn't really "very limited." It just isn't quite as broad as a typical 1" dome. At a normal distance, you can stand up and sit down without hearing the top end roll off. The real issue is the phase integration with the mid. If you're not very far back and stand up, the relative distance of the tweeter and midrange will change, which changes the arrival time of the two drivers to your ear, which changes the phase. This will be true for most speakers. The result is a suck out at the crossover frequency. This isn't likely to be an issue for small distances up or down. I usually have them on 24" stands, which places my ear a little below the design axis (tweeter center). 22" would be better in theory, but I certainly haven't been motivated to invest in any more stands.I would think that is too low - the RAAL has very limited vertical dispersion. But it will depend on your seated distance.