Good subwoofer & Amp for under $250 each

Now i am not looking to spent a huge amount of money here.

But i do want more bang or boom for my buck.

Now i have done a little research and found a sub and amp that seem fairly decent for the cost and their rated output.

They are:

SUB: Kenwood KFC-W3012 DVC $128.85 from ryda.com.au
AMP: Kenwood KAC-M845 Car Amplifier for $188.85 from ryda.com.au

Sorry if this is in the wrong section also.

If anyone can tell me any other ideas on whether these are good value for money, if any others you know of are better and if those are cheaper elsewhere..

SUB: "General Features

MAX POWER 1400W
12" Woofer with dual 4-ohm voice coils
Urethane Surround
Dragon Spider Design
2-Layer Voice Coil Design
Dual Magnet Drive
8AWG Wire Capable Push Terminals
Frequency Response: 35-300 Hz
Sensitivity: 85 dB
Mounting depth: 6-3/16"
SPECIFICATIONS:

Peak Input Power: 1400W
Rated Input Power: 400W
Impedance: 4 Ohms + 4 Ohms
Sensitivity: 85dB
Free-Air Resonance: 28Hz
Frequency Response: 35Hz – 300Hz "





AMP: "Maximum Power Output
720W

Rated Power Output (14.4V )
60W x 4 at 4ohms (20-20kHz 1.0% THD)
90W x 4 at 2ohms (1kHz 1.0% THD)
180W x2 at Bridged 4ohms (1kHz 1.0%THD)

General Features
Aluminum Die Cast Heat Sink
Power MOS-FET Switching Power Supply
Speaker Level Input
Built-in Variable Low-pass Filter 50-200Hz (12dB/oct) Bch
Built-in Fixed High-pass Filter 80Hz (12dB/oct) Ach
2ohms Load Capability
Gold Plated Power & Speaker Terminal
Cooling Fan
Size: W 330.0mm x H 59.0mm x D 230.0mm "



Thanks in advance.

-Caleb