B&C 18TBW100-4 18" Professional Subwoofer 4 Ohm
STLF-1504-4 | 15" 450W Raw Replacement Woofer w/ 4" Voice Coil for Subwoofers – Sound Town
HEW12D4 Hifonics ELITE 12 Inch 4 Ohm DVC Subwoofer | Hifonics
GRS 6LPSW-4 6-1/2" Low Profile Subwoofer 4 Ohm
V84DV2 - VEGA Series 8" 750-Watt DVC Subwoofer (4 Ohm) - Cerwin Vega
B&C 21SW152-4 21" 4000W Neodymium Subwoofer 4-Ohm
Rockville RVW1800P4 1800w 18" Raw DJ Subwoofer 4 Ohm Sub Woofer 107OZ Magnet
1Pc 4 inch Portable Speaker 4 Ohm 15W Bass Speaker DIY Multimedia Subwoofer New | eBay
SUNDOWN AUDIO U-65 6.5" Subwoofer D4 | 400W RMS - 4 OHM
JL Audio 10W6v3-D4: 10 Inch JL Audio W6 Subwoofer 600W 4 Ohm DVC
Amazon.com: 25W Woofer 4 Ohm Subwoofer Speaker, Bass Audio Column Loudspeaker For Home Theater : Electronics
Oaktron 6.5” (165 mm) Premium 4 Ohm Woofer
Amazon.com: Dayton Audio DCS165-4 6-1/2" Classic Subwoofer 4 Ohm : Electronics
Wiring subwoofers — what's all this about ohms?
CAB Ultra 12" inch DVC Dual 4 Ohm (Ultra Series) Car Subwoofer 1500 Watts RMS
Dayton Audio DCS255-4 10" Classic Subwoofer 4 Ohm
MISCO Speakers - Oaktron | 6.5" Woofer, 4 Ohm - 93139
Wiring subwoofers — what's all this about ohms?
Wiring subwoofers — what's all this about ohms?
STLF-1804-4 | 18" 450W Raw Woofer Replacement Speaker, 4" Voice Coil, 4-Ohm – Sound Town
2Pcs 4 inch 50W Subwoofer Audio Speaker – NxtSounds
How to Wire Two Dual 4 ohm Subwoofers to a 4 ohm Final Impedance | Car Audio 101 - YouTube
Amazon.com: Rockville RVW1800P4 1800w Raw DJ Subwoofer 4 Ohm Sub Woofer 107OZ Magnet, 18" : Electronics
ECO10S4 - 10" Subwoofer 250 Watts RMS Single 4 Ohm Subwoofer
How to Wire a Dual 2 ohm Subwoofer to a 4 ohm Final Impedance | Car Audio 101 - YouTube
Subwoofer wiring diagrams
Subwoofer Wiring Diagrams for One 4 Ohm Dual Voice Coil Speaker
