I noticed that Polk has a 10" in-wall sub for $500 via Accessories4Less ($900 MSRP). Seems like this could be a useful solution for people with unique restrictions.\nThis product piques my curiosity on several points: \n1) That is more cost than I normally associate with a Polk sub. Does Polk make any decent subs in the upscale market? I know better than to ask if they represent good value compared to ID subs! I am only asking whether they suck at any price or might they be good subs for music (at 10"...and not being JL Audio drivers, it also seems like the depth of the driver has to be limited to the 3-1\/2" depth of a wall stud I would rule out HT)!\n2) What competition is out there? Who else makes in-wall subs?\n3) Anyone try\/have one of these (Polk or otherwise)? How do you like it? Was integration an issue (seems like a real hit or miss proposition as you can't really do the subwoofer crawl - or maybe you can by just listening close to the wall where you would install it?\n4) Thoughts on the viability of generating bass coupled to the wall structure? It seems like you might want to avoid deep bass as it might get well out-of-hand fast with wall resonances and room gain (why it would be great to hear from people with real experience!\nhttps:\/\/www.accessories4less.com\/make-a-store\/item\/polkcsw155\/polk-audio-csw155-10-in-wall-subwoofer\/1.html\n\nInterestingly, this looks like a totally different item than the other pic! I guess they added some strips of foam to prevent vibration from the sheetrock.