Good question!
 
It's not that I like Polk as much as I like the sound and the price combination. I have been blessed with an "Audio" ear. And the Polk's I have been choosing get very close to the very expensive speakers I actually want.
 
As crazy as it may sound. I want to hear the finger sliding across the cord on a guitar and the sound it creates. Not the digital tone reproduction.
 
At the end of the day, I have clean usable power driving efficient speakers that can get the job done. Are they perfect? No. But the $7000 we spent in the last month on this new system I would run right next to the $25k system I want to build and 98% of everyone could not tell which one was which if they had blind folds on.  

I wanted to add that i picked up the Maranz SR6010 for my home theater and i am  dumbfounded as to how epic it sounds. I don't have the atmos or DTS X stuff hooked up yet, just standard 5.1 klipsch speakers and a supercube plugged into it, but man..... this thing sounds so amazing. Its positional sounds is so much better than any receiver i ever used, and it also helps upscaling duties into my 4k TV, as well as upscaling the sound signal as well. Well worth it if you are thinking about it.

Oh! Sorry man...
 
OK. Here is what I can say so far. The sub far out powers the current space. At one poitn we thought a car hit the home. No joke.
 
This speaker means business.
 
The "Concussion" is exactly what we are looking for. 
 
Pro: OMG
 
Con: Not for all day usage. Definitely more of a "Music time and or Theater time" speaker. A regular 10" for daily daytime TV works better. Otherwise we have to turn this one up and down to match the mood or desired effect. 
 
Now... We have added a lot of firepower to our theater system. Most of it is still in boxes as we decide to build a new home or buy one. In other words, the best is yet to come.

I love my Denon. I think I am upgrading my sub but I am going with the DIY route. 18" dayton audio (UM 18-22) with a ported big old box tuned 16-17Hz powered by an Inuke3000DSP. 1000 watts RMS should be enough to move things around a bit in my room!

Afterburner
Well... My Onkyo finally died. Ordered a Denon AVR-X4200W today 
 
 
http://www.crutchfield.com/S-HDXiRLdILrF/p_033AVX4200/Denon-AVR-X4200W-IN-Command.html 
 

 
 
 
 

That or the 6200 is what I have my eye on for upgrading my onkyo, depending on what I decide about atmos/dtx. I'm leaning towards not being worth the hassle for in home. Let us know how you like it.

They're on my short list due to having audessey multeq xt32 and subeq, and therefore can eq two subs together.

agent8
I love my Denon. I think I am upgrading my sub but I am going with the DIY route. 18" dayton audio (UM 18-22) with a ported big old box tuned 16-17Hz powered by an Inuke3000DSP. 1000 watts RMS should be enough to move things around a bit in my room!

Ah man that sounds perfect!
 

Dukman
I love my Polks. 
 
Almost every speaker I have are Polks, including the 5.1 system on my PC.  The exceptions are my subs and some surrounds.  And those are on the "to do" list for replacement.     Granted, they're the less expensive models a step or two below what AB is running, but I love the sound they give.  Not an audiophile by any means, but I like a clean sound and these speakers deliver that for me.

Sounds wonderful Dukman. Sounds like you found what your ears are looking for, and that is really all that matters. 

Tweaked
I only wish it could equalize more than 2 subs.  My house is one big open room, so I have to run 3 subs just to get any real bass.

Hey Tweaked, which subs do you have? Do they have the ability to daisey chain through a line-out? Perhaps an RCA splitter might work also.

Afterburner

Tweaked
I love my Marantz, which is in the same family as Denon.  Audessey XT32 with Sub EQ is awesome.  You should love it AB.  I only wish it could equalize more than 2 subs.  My house is one big open room, so I have to run 3 subs just to get any real bass.

 
Thanks for the feedback Tweaked.
 
Which Marantz do you have? I was reading the owners manual on one of them (Cannot remember which one) and it mentioned that if you needed another SUB output, that you could use one of the yellow RCA outs, and tell the program it is a SUB... I wonder if that would help your situation if at all possible? 

Afterburner
 
 

I have the Marantz SR-7008.  I don't think the option you described exists in my receiver.
 

kaninja

Tweaked
I only wish it could equalize more than 2 subs.  My house is one big open room, so I have to run 3 subs just to get any real bass.

Hey Tweaked, which subs do you have? Do they have the ability to daisey chain through a line-out? Perhaps an RCA splitter might work also.

 
I have three different subs listed below.  The reason I have 3 different subs, is that I got each of them at different times for smoking deals.  None of them support daisy chaining through the RCA's, so what I have done is put an RCA splitter on one of the sub outs of the receiver and connected the MTX and the Simply Sound Audio to that output since the both sit along my front wall in between my towers.  The Boston Acoustic is run off of the second sub out into a wireless subwoofer transceiver to another part of the room.  
 
Audessey SubEQ equalizes the MTX and the Simply Sound Audio as one, and the Boston Acoustics as the other.  It works quite well.
 
MTX SW-1212
Simply Sound Audio Rumba 12
Boston Acoustics BT1100
 

bill1024
I put JBL speakers in my Foxbody Mustang, they sound pretty good too.
GTO series, I did the door and rear, with a Panasonic head unit sounds sweet. 50$ a set, not bad price.
The more time it plays the speakers seem to sound better, like being broken in.
JBL seems to be of good quality. Sure better than stock.
 

 
My whole car is JBL except the subs which are Infinity.  However Infinity is still in the Harman family and share the same engineers and design features.
 
Here's some fun JBL trivia for you.  JBL is the only speaker manufacture to win an Academy Award for sound.  They have won it on three separate occasions.  Also, JBL dominates most of the live show space from Movie Theaters and Concert Halls, to Amusement parks.

agent8
I love my Denon. I think I am upgrading my sub but I am going with the DIY route. 18" dayton audio (UM 18-22) with a ported big old box tuned 16-17Hz powered by an Inuke3000DSP. 1000 watts RMS should be enough to move things around a bit in my room!

Why would you tune below 20Hz? You can't even hear it. Also, tuning that low will make that box the size of a damn loveseat. lol

Afterburner

RainStryke

agent8
I love my Denon. I think I am upgrading my sub but I am going with the DIY route. 18" dayton audio (UM 18-22) with a ported big old box tuned 16-17Hz powered by an Inuke3000DSP. 1000 watts RMS should be enough to move things around a bit in my room!

Why would you tune below 20Hz? You can't even hear it. Also, tuning that low will make that box the size of a damn loveseat. lol

Air movement and rumble. There is quite a bit we miss from 14Hz to 20Hz in most systems. 

 This. Edge of Tomorrow has some content that is @ 9Hz. I want Dinosaurs walking in my front room. I want concussions from explosions to hit me. I want pants-pooping bass in my movies. Even right now, I have 2 crappy subs and some bass shakers and I get compliments all the time on my system. Although I don't have the budget for super high end stuff, I calibrate and take time with what I have to make it the best it can be. I know it's not really saying much but my system blows away any theater I have been to. I rarely go to the movies anymore.
And yes, the box for the 18" sub I want will be the size of a small fridge. My wife has already expressed her displeasure with what I want to do so it's going to have to be on it's side (and maybe even downsized a little) and varnished nicely. She already said if there is a "giant stupid box spray painted black" in the corner, she is going to be pissed.

seth89
That sub is too big.
You would be better off with a few 10 or 12 inch subs around the room.



 
Are you on the PolkAudio forums by any chance?

Nope. Avs forums sometimes but that's it. 10 or 12s would be good for some near field mid bass but to get as low as I would like and to come close to pressurizing I would need at least a high powered 15" in a vented big cab. Down the line I would like a main 18" cab and then maybe another 15" near field. I would love to go to a 9.2 system too but my room just won't allow it.

Yamaha is my personal choice when it comes to Audio projection. The clean highs is what is most important to me. Yes base is one thing, but without the proper tones from the highs can throw everything off. Base is easy to implement when you have the right amps to drive the base, but you need the same proper power to drive the highs as well.

agent8

Afterburner

RainStryke

agent8
I love my Denon. I think I am upgrading my sub but I am going with the DIY route. 18" dayton audio (UM 18-22) with a ported big old box tuned 16-17Hz powered by an Inuke3000DSP. 1000 watts RMS should be enough to move things around a bit in my room!

Why would you tune below 20Hz? You can't even hear it. Also, tuning that low will make that box the size of a damn loveseat. lol

Air movement and rumble. There is quite a bit we miss from 14Hz to 20Hz in most systems. 

This. Edge of Tomorrow has some content that is @ 9Hz. I want Dinosaurs walking in my front room. I want concussions from explosions to hit me. I want pants-pooping bass in my movies. Even right now, I have 2 crappy subs and some bass shakers and I get compliments all the time on my system. Although I don't have the budget for super high end stuff, I calibrate and take time with what I have to make it the best it can be. I know it's not really saying much but my system blows away any theater I have been to. I rarely go to the movies anymore.
And yes, the box for the 18" sub I want will be the size of a small fridge. My wife has already expressed her displeasure with what I want to do so it's going to have to be on it's side (and maybe even downsized a little) and varnished nicely. She already said if there is a "giant stupid box spray painted black" in the corner, she is going to be pissed.

I added 2 18" subs in huge vented boxes this winter.  Now have those 2 plus my SVS PB12+2 as a nearfield sub all tuned through a minidsp.  Spent way too much time tuning them, but they sound great.  For big action movies they really make the experience very intense.

When you have an 18" sub throwing around 1000 watts of something at you under 20Hz, you suddenly see what a real system sounds like. I would argue that there is some benefit up to 22,000Hz but even then, it's pretty subtle and not worth worrying about.

agent8
When you have an 18" sub throwing around 1000 watts of something at you under 20Hz, you suddenly see what a real system sounds like. I would argue that there is some benefit up to 22,000Hz but even then, it's pretty subtle and not worth worrying about.

That moment your neighbor's pictures fall off their wall.