I've owned both versions of the Denali 6000 as well as the Triton v3. There is nothing about either that brings to mind brightness. If you're using any of the above and have brightness, you have bigger problems. The performance of the Shunyata products has been covered in many reviews - my favorite being:
http://highfidelity.pl/@main-875&lang=en
http://highfidelity.pl/@main-875&lang=en