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Is this a good subwoofer package ?

http://www.sonicelectronix.com/item_28426_2400W+Complete+Kenwood+%2B+Pioneer+Bass+Package.html Adding some hard hitting bass has never been easier! This exclusive combo from Sonic Electronix features two Pioneer subwoofers and a Kenwood amplifier. When wired properly at 2 ohms, this package perfectly matches the subwoofers with the amplifier for quality, deep bass. The Kenwood KAC-8105D amplifier features Class D circuitry that is efficient and provides excellent bass output. Also included in the package is a enclosure pre-lined with poly-fil and a 4 gauge amp kit. Everything you need to get great bass is included in this package!

Amplifier Features:
Class D Monoblock Car Amplifier
RMS Power Rating:
4 ohms: 300 watts x 1 chan.
2 ohms: 500 watts x 1 chan.
Max power output: 1000 watts x 1 chan.
MOSFET power supply
LED power indicator
Tuned Bass EQ (0-18 dB bass boost at 40 Hz)
Speaker-level inputs with signal sensing for automatic turn-on
Preamp RCA outputs
Short circuit, DC offset, overload, and thermal protection circuitry
Aluminum die cast heat sink
Speaker impedance: 2-8 ohm
Gold-plated RCA level inputs
Gold-plated screw terminals
Input sensitivity: 0.2-5 Volts
Variable low-pass filter (50-200 Hz, 24 dB/octave)
Subsonic filter (15/25 Hz)
CEA-2006 compliant amplifier
Frequency response: 10-200 Hz
Dimensions: 11″L x 2-5/16″H x 9-3/8″D
4-gauge power and ground leads recommended
Authorized Internet Dealer
1-year Manufacturer’s warranty
Subwoofer Features:
Two 12″ Single 4 ohm Champion Series Subwoofers
Power Handling:
Peak: 2400 watts total / 1200 watts each
RMS: 500 watts total / 250 watts each
IMPP Composite and paper cone woofer
Double cone design with reinforcement nodes
Urethane surround
Nomex spider
Projected pole yoke with vented pole
6 Layer, long copper voice coil
32oz. Strontium magnet structure
Stamped basket with magnet cover
Integrated single-sided spring compression terminals
1-year Sonic Electronix warranty
Enclosure Features:
Dual 12″ Sealed Subwoofer Enclosure
Made from durable 3/4″ Medium Density Fiberboard (MDF)
PolyFil pre-installed for deeper bass
Covered in black carpet
Absolute logo places on the front of the enclosure
Two binding post terminals on the back of the enclosure
Square box enclosure universal for most vehicles
Mounting depth: 13-3/8″
Cutout diameter: 11-1/8″
Box volume: 2.8 total cubic feet (1.4 cubic feet per chamber)
Dimensions: 15-3/8″D x 28-1/2″W x 14-1/2″H
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Amplifier Kit Features:
Amplifier Installation Kit with RCA Interconnect Cable
4 Gauge Power and ground cable for excellent power transfer
Designed for systems up to 1500W
Comes with everything needed to install an amplifier
RCA Interconnect cables use twisted pair construction for optimal signal transfer with low noise interference
Speaker cable is easy to install with clean and clear sound
Authorized Internet Dealer
1-year Manufacturer’s warranty
Amplifier Kit Includes:
17 ft. of 4 Gauge blue power cable
3 ft. 4 Gauge black ground cable
17 ft. Neon blue series RCA cable
16 ft. of Speaker wire
17 ft. of 18 Gauge blue remote turn-on wire
6 ft. of Split loom tubing
1 AGU Fuse Holder
60 AGU Fuse
All Necessary Hardware for Installation