Got them hooked up and played with them for a couple hours this morning. Not only do they work, but I'm pretty blown away. They aren't nearly as crazy as my JL slims, but for subs in a comically large box, that have been played daily for over a decade, the sq on these absolutely lives up to Bostons reputation. Low lows are deep and commanding, higher lows are punchy and authoritative. They are surprisingly responsive for being in a box 3x the recommended size. I believe I'm going to build some rip off JL stealthboxes and run both of these, around .7 cubes net each sealed. I believe that will help the responsiveness even further, and hopefully not crush the deep lows too badly. Boston says .5 cubes sealed, so .7 I'm thinking will be great. Unfortunately with these being the single voice coil version I'm only able to wire them down to 2 ohms, so I'm only getting 600 watts out of my kicker. I may or may not get a slightly more powerful amp for them. I've decided the JLs I want in another vehicle, and that kicker amp is perfect for them, so I may move the amp to my other vehicle as well. I'm going to switch the JLs to sealed as well. They literally shake my windshield wipers in their current box, but I never actually listen to them at even half of that volume. So, I'm sacrificing a lot of sq currently for volume that I don't even use. May start keeping a better eye out as well for some G5s. If the G3s are this good, I'd love to see what their big brother can do.