Nothing has ever come close to achieving so much at such a modest cost. $8,000 is by no means chump change, but when other companies are asking ten times this for wire, that they claim is a “component level” upgrade, I call shenanigans. If your system doesn’t go to 11 right now, a pair of these will get you there. And if it already does, hang on; you’re still in for a ride you aren’t expecting.
In the end, I’m not sure what freaks me out more, that a pair of REL 212SEs are this good, or knowing that there are two more models above the 212SE.