Don't give up too easily on the 5.4's. They will convey whatever signal is sent to them, whether it be warm or analytical and cold. Transparency to the source is one of their best features. Having lived with them happily for three years, my system has grown around these qualities, to a point where it has afforded me long term satisfaction I always thought would elude me in the past, but not any more.
I would try to hear them with different components, if at all possible.