This is a perfect partnering of high output and high quality in a single sub install.  Separate, these two would cost more, so jump on this killer deal of an awesome sub woofer and amplifier that both have been proven in the SPL lanes and in high end daily driver systems. 

Nightshade 12D2:

T/S:

RMS: 1500
Z: 4 Ω
Re: 2.92 Ω
Fs: 41 Hz
Qms: 9.36
Qes: 0.46
Qts: 0.44
VAS: 11.7 L
BL: 22.8 NA

SAZ-1500D:

Type Mono Class-D

1500 watts x 1 1 ohm

800 watts x 1 2 ohms

400 watts x 1 4 ohms

THD at 4 ohms <0.1%
S/N Ratio >90 dB

Input Sens. 200mV - 6v
Freq. Response 10 - 350 Hz
Fuse Rating 40 amps x 4
Dimensions 17" L x 9" W x 2" H
Warranty 2 years

Efficiency : 86% @ 4 ohm, at 100Hz

Double Sided Through Hole Epoxy PCB

Daisy-Chain Through Output RCA

24dB/Oct Variable Crossover

Multi-Way Protection Circuitry

(Thermal/Over Current/Speaker Short/Speaker DC Protection)

Variable Subsonic Filter

Variable Bass Boost

Variable Low Pass Filter

Variable Phase Shift

Zero(0) Gauge Power Supply Connectors

Tested Voltage & THD : 14.4V & Less than 1% THD

Operating Voltage : DC 10V~18V

Digital Class-D Linkable Mono Block Amplifier

1 Ohm Stability

RCA Line Input and Master Output

24dB Octave Crossover Slope

Wired Remote Controller