Package Includes:

• (1) Memphis Audio SRX1244 12" SRX Car Subwoofer Sub 500w Peak/ 250w RMS / Dual 4 Ohm
• (1) Rockville dB11 1400 Watt Peak/350 Watt Dyno-Certified RMS Mono 2-Ohm Amplifier Car Amp+Bass Remote
• (1) Rockville RWK81 8 Gauge Complete Amp Installation Wire Kit with 100 % Copper RCA
  
• (1) Rockville RSV12 Single 12” 1.22 cu.ft. 3/4" MDF Vented Subwoofer Enclosure Box
• 10 Drywall Wood Screws (Wood screws are the type of screws; the screws are actually made of metal)
• 12 Feet of 14 AWG Blue Speaker Wire
• 2 Spade Terminals

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Description of SRX1244:

Whether it’s your first system or you just need a little more bass in your trunk, the Street Reference line is the ultimate value subwoofer on the market. Redesigned from the ground up, SR subs are indistinguishable from their predecessors with improved performance, durability and cosmetics.

Features:

• Memphis Audio SRX1244 12" SRX Car Subwoofer Sub 500w Peak/ 250w RMS / Dual 4 Ohm
• 12 AWG compression terminals
• Anodized aluminum voice coil former
• Optimized for both sealed and vented enclosures
• Lightweight but rigid cone design for improved efficiency
• Polypropylene cone for improved durability
• Progressive poly cotton spider for controlled motion resulting in lower distortion
• Rubber surround for improved durability

Specifications:

• Size: 12"
• RMS Power: 250w
• Peak Power: 500w
• Voice Coil: Dual
• Impedance: 4-Ohm
• Sensitivity (dB): 85
• Magnet Size (Oz): 39
• Mounting Depth (in): 4.92
• Cut Out Diameter (in): 11.10
• Voice Coil Diameter (in): 2
• Warranty: 1

TS Parameters:??

THIELE SMALL PARAMETERS
Resonant Frequency  (fs)	30 Hz
Mechanical Q	3.54 Qms
Electrical Q	1.21 Qes
Total Q	0.902 Qts
Sensitivity	84.4 dB
Xmax Linear	0.24 in.
Xmax Mechanical	0.8 in.
Displacement	0.09 cf.
Air volume of suspension (Vas)	2.406 cf.
Moving Mass (Mms)	155.8 g
Suspension Compliance (Cms)	0.186 mmN
Effective piston area (Sd)	510.71 SqCm
Motor Strength (Bl)	6.23 TM
VOICE COIL & MAGNET
Impedance Series	8 ohms
Impedance parallel	2 ohms
Voice coil diameter	2 in.
RMS Power	250 Watts
Peak Power	500 Watts
Magnet weight	40 oz
Magnet diameter	4.73 in.
PHYSICAL DIMENSIONS
Mounting depth	4.96 in.
Cutout Diameter	11.1 in.
Frame Outside Diameter	12.6 in.
ENCLOSURE RECOMMENDATIONS
Single sub sealed	1.25 cf.
Dual subs Sealed	2.5 cf.
Single sub vented	2 GROSS cf.
Port dimensions	12.5" x 1.5" x 21"L
Tuning frequency	37 Hz
Dual sub vented	4 GROSS  cf.
Port dimensions	12.5" x 3" x 16"L
Tuning frequency	37 Hz

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All About Your dB11:

How To Set The Gain On Your Car Subwoofer Amplifier:

What's In The Box:

• (1) dB11 Amplifier
• (1) Bass Remote
• (1) Birth Sheet with Tested Power
• Owner's Manual
• Mounting Hardware
• Warranty

Features:

• Rockville dB11 1400 Watt Peak/350 Watt Dyno-Certified RMS Mono 2-Ohm Amplifier Car Amp+Bass Remote
• Dyno Certified RMS Power Ratings: (Certified Dyno Test / Less than 1 % THD) (Use these ratings when comparing with top brands such as Kicker, Rockford Fosgate, etc)
  - 2 Ohm: 350 Watts x 1 Channel <1% THD+N
  - 4 Ohm: 220 Watts x 1 Channel <1% THD+N
• Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc)
  - 2 Ohm: 1400 Watts x 1 Channel
  - 4 Ohm: 880 Watts x 1 Channel
• High-Speed MOSFET Power Supply
• Optical Coupler Class "D" Technology
• Fully Adjustable 12dB / Octave Crossover with Differential Circuitry
• Low Pass Filter: 50Hz - 250Hz
• Subsonic Filter: 15Hz - 55Hz
• Phase Control
• Full IC-Controlled Protection Circuitry
• Fully Adjustable 12dB Bass Equalizer
• Mute and Delay Soft Start System
• Status Mode LED Indicator
• Minimum THD at Rated Power: <0.1%
• S / N Ratio: >90dB
• Under Voltage Protection at 10V
• Over Voltage Protection at 16V
• Frequency Response: 15Hz - 250 Hz
• Dimensions (Inches): 8.9” W  x 2” H x 5.5” D