The TC-9 is pretty much as the description stated...the motor is a classic and was used in other great subs as TC-Sounds is a build house and makes subs for other companies. These subs were pretty much Killers when they first came out as the moters were strong, they handled big power, had big Xmax, and were very clean and free of distortion....they were leaders of the pack.
Today, 2007 there are a tons of subs to choose from and there are many that get loud and take big power. Nevertheless, this new TC-9 at $179 sounds like it is just as good as ever and is probably better than many name brand subs that you could get at that price. TC Sound subs are clean with little overhang....
Also, the 12" TC-3000 is $249
• 160 Newtons2/watt Motor Force
• 1000 Watts Continuous Power
• 3" Anodized Aluminum Voice Coil
• Single Dish Titanium Cone
• High Excursion Tall NBR Surround
• 215 Ounce Magnet Structure
• Anti Flux Modulation Shorting Ring
• 30mm XMax
• 10" Diameter Suspension System
• Custom Cast Aluminum Frame
• Quick-Detach Top Assembly
Works in a small .5 cu ft sealed box
Will have to wire for 1.4 Ohms
vs. the TC-9:
• 140 Newtons2/watt Motor Force
• 800 Watts Continuous Power
• 3" Anodized Copper Voice Coil
• Single Dish Aluminum Cone
• 1" NBR Surround
• 145 Ounce Magnet Structure
• 18mm XMax
• 8.0" Diameter Suspension System
• Cast Aluminum Frame
Will work in a fairly small box .8 cu ft sealed
Will have to wire for 1.5 Ohm
I bought this TC-9 based brute myself:
http://www.caraudio.com/forum/showthread.php?t=187262&highlight=entasi