Safiniea is Greek for clarity and that seems to describe these pretty well. Once again, Rival has produced an absolute gem of a midwoofer with the R176P08. Excellent response, linear, and smooth. This is the first ScanSpeak R2604/8330 I have used on my own and found it quite easy to work with. No real suprises here and nothing concerning about it. As this is a kit for RAD, I won't post the crossover here. It does use a 2nd/3rd order electrical topology that crosses at about 1.8k. I will post more measurements soon. Enclosure is a combination of 3/4 bbply (baffle, top, bottom and brace), mdf (sides, rear) and 1/2" bbply baffle. Port is 2"×6"L fir a 40hz fb. RAD has baffles already cut that will accommodate the Taured 2way and Safiniea builds as well.