DS18 PRO-X6.4BM Loudspeaker - 6.5", Midrange, Red Aluminum Bullet, 500W Max, 250W RMS, 4 Ohms - Premium Quality Audio Door Speakers for Car or Truck Stereo Sound System (1 Speaker) : Amazon.sg: Electronics
Amazon.com: Dayton Audio DAEX30HESF-4 High Efficiency Steered Flux Exciter with Shielding 30mm 40W 4 Ohm : Electronics
Amazon.com: DS18 SLC10S Car Subwoofer Audio Speaker - 10" in. Paper Glass Fiber Cone, Black Steel Basket, Single Voice Coil 4 Ohm Impedance, 440W MAX Power and Foam Surround for Vehicle Stereo
Amazon.com: HERTZ HMS-10-B 10" 250 Watts RMS 4-Ohm Marine Infinite Baffle Subwoofer, White : Electronics
Amazon.com: PRV AUDIO 10 Inch Woofer Speaker 10W1000-NDY-4, 1000 Watts Program Power, 4 Ohms, 3 in Voice Coil, 500 Watts RMS, Unique Sound Reproduction Midbass Woofer Driver for Pro Car Audio (Single) : Electronics
Amazon.com: PRV AUDIO 6.5 Inch Midrange Speaker 6MR500-NDY-4, 500 Watts Max Power, 4 Ohm, 2 in Voice Coil, 250 Watts RMS, Neodymium Magnet, Smooth Full Range Response Through 13kHz for Car Audio
Amazon.com: American Bass MX252T- 1 Inch Compression Tweeters 4Ohm 150W Max Sold in Pairs : Electronics
Amazon.com: 2 x 12 Subwoofer 1200W 2" 4 Ohm DVC Pro Car Audio American Bass XO-1244 : Electronics
Car Audio Dual 12" Slot Vented Paintable Baffle Stereo Sub Box Enclosure
Amazon.com: PRV AUDIO 69MR500-4 Bullet, 6x9 Inch Midrange Speaker 4 Ohms, 250 Watts RMS Power, 500 Watts Program Power, Loudspeaker for Pro Car Audio (Single) : Electronics
Amazon.com: DS18 MP4/WH White Marine Speaker - 4", 2-Way, 150W Max, 100% UV Stable, IPX5 Marine, 4 Ohms - for All Elements, UTV, ATV & Jeeps (2 Speakers) : Everything Else
Amazon.com: Bazooka BT1024DVC BT Series 10-Inch 4 Ohm Dual Passive Tube : Electronics
Amazon.com: Install Bay Speaker Baffle 5 Inch to 5 1/4 Inch Round Pair - VXT55 : Everything Else
Amazon.com: PRV AUDIO 6MB100-4 Pair of 6.5 Inch Midbass Speaker for Pro Car Audio, 4 Ohm, 50 Watts RMS Power, 200 Watts Max Power Mid Bass Factory Replacement Loudspeaker (Pair) : Electronics
Amazon.com: wet sounds Revo 12" Subwoofer & Grill - Black Subwoofer & Silver XS Grill - 4 Ohm : Electronics
Amazon.com: Lanzar 2 Way Coaxial Speakers - Standard 4" Full Range Sound 120 Watts Peak, 60 Watts RMS, 4 Ohms Impedance, Injection Cone, 10 Oz Magnet Structure, Fits OEM Locations (Pair) : Electronics
Amazon.com: Pair Faital PRO 4FE35 4" Midrange Full-Range Woofer Speaker 4 ohms 60W 91dB : Electronics
Amazon.com: HERTZ HMX8S Powersports Coaxial 8" 2-Way 4 Ohm Speaker 100W RMS 200W Peak : Electronics
Amazon.com: Rockford Fosgate M2D4-12IB Color Optix 12" DVC 4-Ohm Infinite Baffle Multicolor LED Lighted Marine Subwoofer - Black/Stainless : Automotive
Design Engineering 050310 Boom Mat Speaker Baffles, 4" Round (Pack of 2)
Amazon.com: Dayton Audio DCS165-4 6-1/2" Classic Subwoofer 4 Ohm : Electronics
Amazon.com: wet sounds Subwoofer Package: Two 10" Silver 4-ohm Free Air Subwoofers (XS-10FA-S4V2) : Electronics
Amazon.com: PRV AUDIO 8 Inch Shallow Midrange Buller Speaker 8MR400B-4 Slim, 4 Ohm, Shallow Mount Car Slim Speakers, 400 Watts Program Power 1.5 in Voice Coil, 200 Watts RMS, Compact for Doors (Single) : Electronics
Amazon.com: 2 PCS Speaker Baffle Acoustic Foam 4'' Round Shallow CAR Audio BASS VXT42 : Electronics
Amazon.com: Bazooka BT1024DVC BT Series 10-Inch 4 Ohm Dual Passive Tube : Electronics
Amazon.com: Design Engineering 050351 Boom Mat Speaker Baffles, 4" x 6" Oval Slim (Pack of 2) : Electronics
