Speakers sound too bright.

Sorry to hear your first reaction. But, you really need to get them broken in. I would put them pointing at each other and play them 24 hours a day for a week. As loud as possible without disturbing you. 

The most likely problem is breakin. Then as someone pointed out, they may be a bit sizzly. If so, tube equipment would be  much warmer. Typically, speakers first, then upgrade electronics to optimize... but you want to like the speakers. Did you hear them before buying? You liked them?

Touch your woofers and make sure they are active.  Just want to cover the possibility they are malfunctioning first. :)

@rwalsh07  Aside from the speakers, have a look at this site for assessing the room itself.  There  seems to be some real issues you could address around the room size itself.  If it's true the room is 50% of the sound, your 30 x 30 room is not helping?  Cheers.

https://www.acoustic.ua/forms/rr.en.html

Try replacing the metal jumpers with some heavy gauge copper wire and switch back & forth with the Blue Jean Cable from the lower to upper binding posts on the speakers. See is you hear a difference between them.

You were sensitive to a similar issue with your previous speakers. Look elsewhere in the system.