Looks,Cosmetics, even the companies moto is "Image is everything"

Plastic fiber glass basket that is prone to crack, inflated power handeling ratings, overly hyped online for what it is just like all Image Dynamics products.

Two Image Dynamics IDQ 12 v3 hooked up to a Alpine PDX 1000.1 in a 2 cube sealed box.
Went from never blowing a sub in my life to blowing several with these IDQ's also the the baskets kept cracking and splitting on me after I screwed them in the box using this sub was a total waiste of time being used to good quality products from JL Audio and such.
I could go on and on but I want to make a point to all in the car audio game that visits the online forums, just know that the online forums are all setup by these smaller companies like Image Dynamics,Cadence,Sundown and many other's to market these products, you will get an overwhelming amount of opinions in favor of these smaller brands and most of it is downright junk. Do yourself a favor and never purchase a product unless you have access to hear it in person first don't fall into the trap of listening to peoples opinions online as most are full of crap or are trying to market products afterall you have no idea who is behind the computer
making the opinions.
I am sure some of you are wondering how this sub sounds the sub has a punchy peaky sound to it the lowend is very dissapointing one of the things everyone online likes to brag about with these subs is that they are efficient..lulz this is because these subs are essentialy 300 watt subs with a 600 watt rating so of course they will get loud at low-mid volumes..because you are over powering them when you start to pour the power on them they fart and botom out the only people that like these subs are either involved with Image Dynamics in some way or another or forum boner band wagon people or newbies that have never been around quality car audio in thir life. It annoys me so much how misleading the online forums are people would be so much better off to never visit a car audio forum for purchase advice and just get off their butt and demo products at the local shops and let their own ears decide. There are plenty of great products sold at the local stores there is no need to look into these smaller brands that are simply rebadged chinese made flea market products with a high mark up price.

Similar Products Used:

IDMAX-Another overhyped Image Dynamics product, this sub is essentialy a glorified over priced 600 watt sub.
13w6v2 best sub I have ever used period (running two right now)
12w7 great sub if it was not so deep
Alpine Type R 12 great sub for the money
Polk SR very nice.
And others thse are just from the top of my head