Design Your Own Reference Bookshelf Speakers : 27 Steps (with Pictures) - Instructables
X v.3 Series (2000W)
Amazon.com: Rockville DV8K52 Dual 8" K5 1600w Car Subwoofers+Vented Sub Enclosure Box/2 Ohm : Electronics
10TW1-2 - Car Audio - Subwoofer Drivers - TW1 - JL Audio
Building A DIY Sealed Subwoofer | Audioholics
13W7AE-D1.5 - Car Audio - Subwoofer Drivers - W7AE - JL Audio
Amazon.com: American Bass XD-1022 900 Watt 10" Car Audio Subwoofer+Vented Sub Box Enclosure : Electronics
320K/C-A LF Drivers - B&C Speakers
Sundown Audio X10 v2 D2 - Down4sound Shop
Rockford 2014+ Harley-Davidson Dual 10" Saddlebag Subwoofer & Amp Kit — Big Jeff Online Inc
SUNDOWN AUDIO X 18 v.2 - Down4Sound Shop
Memphis Audio MOJO MJM844 8" 1800 Watt Competition Car Subwoofer + ROCKBOX - Walmart.com
Sealed enclosure explained in detail and calculator - Audio Judgement
JL Audio 13.5" TW5v2 Thin Subwoofer Driver - 13TW5V24
Pioneer TS-W309S4 Champion Series 12" 4-ohm subwoofer at Crutchfield
Z v.6 Series
2) Rockville W15K9D2 15" 10,000w Car Audio Subwoofers+Vented Sub Box Enclosure
Sealed enclosure explained in detail and calculator - Audio Judgement
Refurbished Sundown Audio 8" Xv3 Subwoofer
Test Bench: Scan-Speak's 38WE/8582T00 15” Ellipticor Oval Voice Coil Woofer | audioXpress
Memphis Audio MJP1544 15" 1500 Watt MOJO Car Subwoofer+Vented Sub Box Enclosure
