Hi Fernandoea,
It sounds like you really like the Electra's, so why not just get them. The amount of money your going to spend on evaluating other speakers which you may or may not like will cost you in the end. No offense to Drmoles, but just because he likes the System Audio's, doesn't mean your going to like them. A reason why Drmoles might like these speakers might have to do with something simple such as room size or associated gear. At a dealer, you could think that they are the greatest speakers in the world and bring them home and because of room size or gear, it could sound horrible. Some dealers, with a credit card, will actually let you bring home gear to demo in your own place with your own equipment. I know a few in New Jersey, but unfortunately not in FLA. I personally have never heard the Electra line but a guy who I trust and respect basically was telling me that the 937's BE Electra's are a really great speaker and they easily beat out B&W 802's, which is the speakers I have and I like the 802's, so I might try the 937's eventually.