Alright well I had this same set up once before but then I had some issues with it but I liked it so much I bought the EXACT same stereo because it was so amazing. Anyway I would just like to say please research diamond audio products before you make a choice because this is not a "best buy" stereo by far. If you are local I would be more than happy to meet you and let you listen to it.

Here are the specs of the sub:
http://www.diamondaudio.com/pr...2.pdf

^^This link shows all of the specs, there are many and very detailed things so I just posted the link

Here are the specs of the amp.
Class A/B MOSFET Circuitry
PWM MOSFET Power Supply
Semi-double Glass Epoxy Circuit Board
THD: 0.02%
S/N Ratio: >100dB
Frequency Response: 10Hz - 40KHz (+/- 1dB)
Variable 18dB Hi-pass Crossover: 50Hz - 750Hz
Variable 18dB Low-pass Crossover: 50Hz to 120Hz
Bass Boost On/Off
Subsonic Filter: 20Hz to 50Hz
RCA Throughput Connections
3-way Protection Circuitry: Thermal, Short Circuit and Overload; Cooling Fan
Cobalt Blue Illumination
High Gloss Chrome Plated Finish
Nickel Plated Block Terminals
Air Induction Fan Cooled
RCA and Speaker Level Inputs
800 x 1 at 4 Ohms Mono RMS!!

I do not run this amp all the way turned up, It is set at about half way and tuned for the sound overall. The enclosure was made by a stereo shop in California that I knew made good boxes. (paid 50$ to ship it to me so you know this was not a crappy box) anyway they made to to perform for this sub and only this speaker. I would like 300$ for this setup and I prefer local because this is not a light item by far (maybe 70-90 lbs.) but I will ship as long as you pay the charges. Also the set up as far as the sub and amp are maybe 4 months old with 2 months of use (sold old car and was not going to put this in a beater) and the box is two years old.