Originally Posted by wktmeow

There's a Behringer NX3000 in the media stand, speaker wiring going up through the walls, EQ'ed with a MiniDSP 2x4(although I need to purchase a MiniDSP HD, as the output voltage of this one does not match the behringer... the great thing about standards is that there's so many to choose from).

Low distortion is partly due to the large drivers, partly due to lack of rear pressure that you'd have in a sealed box. The sound is also less colored or 'boomy' than you'd get with a traditional sealed/ported sub.

Not sure I have the budget to be a 'true' audiophile, but if I'm up your way soon I'll shoot you a message. I'm curious to hear if your audiophile buddies have ever looked into IB. This all stemmed from me wanted to replace our cheap home theater in a box, then my wife being displeased with the size of the 'entry level' HSU subwoofer (although she did admit it sounded great). So when I heard I could get better sound quality, hide the box, and have a fun project to work on, all for a cost of around $1k, I went for it. Although now I fear my little bookshelf speakers aren't keeping up, so I'm shopping around for some nicer towers. A nicer amp for the mains is probably next instead of using the AVR, so I guess I'm starting down the rabbit hole.

Anyway, if I've piqued some curiosity about IB subs, check out https://ibsubwoofers.proboards.com/, https://www.jonathanfoulkes.com/ibsub, IB subwoofer FAQ page, and https://sites.google.com/bucknell.ed...ffle-subwoofer for starters. I'm pretty new to this arena but I'm very pleased with the results from mine (although hunting down rattles throughout the living area is a new pastime of mine)