Dark blue is less than one standard deviation from the mean. For the normal distribution, this accounts for 68.27% of the set; while two standard deviations from the mean (blue and brown) account for 95.45%; and three standard deviations (blue, brown and green) account for 99.73%.
Here you can find a large selection of car alarms, security, amplifiers, audio, car CD/MP3 receivers, Garmin and Magellan GSPS devices, accessories, and cables, PDAs and handheld PCs.

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12-Volt Portable Appliances
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Car Subwoofers
Enclosed Subwoofer Systems
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Single Boxes
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Dual 12" Sealed Car Subwoofer Enclosure Sub Box U $21.75 Dual Two 12" Sub Subwoofer Speaker Box - Ported Vented $40.01
12" Dual Bandpass subwoofer box (empty) $49.99 Custom Dual 12" Woofer Box $79.99
Dual 12" Car Bass Vent Truck Suv Subwoofer Box New 12Dp $64.99 New 3/4" Mdf Dual 10" Split Ported Vented Sub Car 10Dp $49.99
kicker dual 12" L7 subs & Zx.750 amp. 2008 series!! $610.00 Sub Box Q-Logic Dual 12" $5.00
New 15" Dual Port Vented Car Truck Sub Enclosure 15Dp $88.99 New Bass Sub Box 15" Sealed Car Truck Woofer Mdf 15D $64.99
15 Inch New Dual Black Car Truck Suv Enclosure Box 15D $64.99 Dual 10" Subwoofer Bandpass Speaker Box $10.00
Dual 10" Car Audio Stereo Subwoofer Sub Enclosure Box $8.99 Dual 12" Car Audio Stereo Subwoofer Sub Speaker Box $9.99
Dual Top Vented 12" Ported Subwoofer Sub Speaker Box $19.99 2007-2008 Chevy Silverado Sub Subwoofer Box Enclosure $75.01
2007-2008 Gmc Sierra Crew Cab Subwoofer Box Enclosure $75.01 2004-2008 Ford F-150 Truck Sub Box Enclosure 10" 04-08 $70.01
12" Logic Dual Subwoofer Enclosure $15.95 New 10" Dual Black Carpet Sub Bass Box Car Truck Suv10D $42.99
New 10" Inch Dual Subwoofer Bass Box Car Truck Suv 10D $42.99 New Dual 10" Vented Car Subwoofer Enclosure Box Eba210 $69.99
Dual 12" Underseat Down-Fire Sub Boxes Enclosure *pair* $87.99 Dual 12" Under-Seat Downfire Sub Enclosure Boxes *pair* $87.99
Jl Audio W7 10W7 Dual Ported Box Subwoofer Enclosure $215.00 Dual Vented 15" Sq L5 L7 Ported Subwoofer Speaker Box $34.99
Dual Slantback 15" Car Audio Subwoofer Sub Speaker Box $14.99 New Dual 12 Subwoofer Vented Ported Enclosure Sub Box U $59.95
Dual Kicker L5 L7 15" Sq Hole Subwoofer Sub Speaker Box $13.99 2 Kicker Solo X 12'S (will sell separately) $400.00
Dual 15" Kicker Universal Subwoofer Sub Speaker Box $13.99 Dual 12" Subwoofers 340 watt Dual Amp and Box Xinbp212 $50.00
Dual 12" 1200 Watt Car Bandpass System W/Neon Lighting $99.00 2 Speaker Boxes 6 x 9 Inches $20.00
10'' Dual Bass Slantfront Subwoofer Sub Speaker Box $22.99 10'' Dual Bass Top Vented Subwoofer Sub Speaker Box $14.99
10'' Dual Slantback Subwoofer Sub Speaker Box $7.99 12'' Dual Bandpass Subwoofer Sub Speaker Box $41.99
6 Hole 12" Chambered Compact Subwoofer Sub Speaker Box $126.99 Jeep Wrangler Cj5/Cj7 10" Df Subwoofer Sub Speaker Box $93.99
Solobaric L5 L7 10'' Sq Audio Subwoofer Speaker Box $5.99
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Prices current as of last update, 10/07/08 1:07am.
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