Curious to who has tried them and with which speakers? Mounting depth on their site says 3" to 3 1/4"

My current setup is BD motos in TP and fairing and PRV6MB250-NDY-4 in my wet lowers with my own mod(see pics) driven by a SSPN4.1000 with 1 BT355.
My mod has some limits obviously with magnet size. Once bike is out of winter storage I will get a netter idea what "might" fit in my lower mod.

I am also upgrading to mmat PA601.4cx (already have these)in TP and fairing and then decide on lowers but wanna see what people have done with the metra design. Also going to upgrade amp after all is done with help from the collective:0)

 

I haven't used those but I've used the Hogworks adapters with Euphoria EXNCD's. With those speakers I had to use a 1/2" adapter due to their depth.