I have two of these in a .35 cuft box tuned to 47 hz stuffed with polyfill and they play all the notes on test tracks from bass nectar and bass mekanik. They really make up for the lack of bass in a small space. They are under the rear seat of my 2020 Jeep Gladiator. I am giving them 400 watts rms with the gain set to 55-60 percent and they jump out of the box with tight clean lows.
I bought these back in 2018 and didn't do anything with them ti just last week when I decided to finally build an enclosure for them. These 6 little monsters do a very good job for as small as they are and I'm definitely impressed by them. The don't compare to 15's by any means but they do get low.. 2009 suburban still get to keep the 3rd row and enclosure is 4.1 cubic feet after displacement and running at 34hz - 48W/26D/8.5H
Got 3 6.5’s for my wife’s Cherokee In a down fire box. .87cu. Wired to 1.3ohm. Pairing with a RP800.1d. Still need to install. Big thanks to Shane for his patience on my never ending questions through emails.
Have two of these reverse mounted in .258 cubic foot boxes hooked to mrp 500 alpine amp, pair with a full hertz high energy set up. Must say for how small these are and how tiny the boxes are they absolutely hammer!!! Wicked subs, will be buying much more of this product, still need to carpet the box but needing tint done first so it can wait, and no it doesn’t touch the window at all