Ascend Sierra 1 vs Triangle Borea BR08


I decided to upgrade my current bookshelf speakers (Infinity R162s). I've settled on 2 options based on some reviews: 

  • Ascend Sierra 1 (on sale for 680/ pair) 
  • Triangle Borea BR08 (on sale for 800/ pair) 
I'm newer to audio stuff, but I felt it was a good time to upgrade. My current system and listening area: 

  • Denon AVR-X2600H (95WPC) 
  • HSU VTF2 MK5 
  • Fluance RT-85 (Nagaoka MP150) 
  • Art DJ Pre II (12V power supply upgrade) 
  • 24'x15' living/dining area with 9' ceilings
  • Not treated and can't be because WAF
  • Opening to kitchen and staircase 
  • Listening Position about 7-8 feet from speakers currently
Originally I thought the Triangle might fill the space better and I like that is 3-way. That said I've heard some middling reviews about response.

Sierra 1s are at a great price, and I would assume better quality. What I'm concerned about is achieving adequate volume in the space.

I value accuracy above volume, but I don't want it to sound anemic in space. I will probably end up just trying both and judging for myself, but curious as to your opinions. 

Thanks! This is my first post here. 
coolhandduke
@b_limo 

I'll most likely purchase the Sierra 1 as well. Figure if I like them more than the Triangle, I can sell the BR08S for around what I paid and make someone happy with the deal. Saves me shipping. 
My bet is that the triangles will win.  The build quality won’t be as good but I bet they sound much fuller.  The mids and highs should be fine on the Triangles also.
If you use a high pass filter, you'll never run out of dynamic range with your sub.

Since you'll be using a sub, plug the ports. 
@b_limo 

We shall see. 3-way, bigger cabinet, Chinese budget model vs. 2-way, smaller, bamboo, US made, and upgradeable to their high-end model.
True, but the drivers in the bro’s still look nice.  No cast baskets...stamped rather, but nice sized magnets and good venting.  The cabs are decently braced too. The Bros are going to be more dynamic in my guess.

I am curious to see what you prefer though!

That AVR needs to go!  Is this a surround set-up or...?  Im confused because you have a vinyl setup but no 2 channel amp.