Amazon.com: DS18 CANDY-X4B Amplifier in Black - Class D, 4 Channels, 1600 Watts Max, Digital, 2/4 Ohm - Don't Sacrifice Space for Power - Compact Mini Ampflier for Speakers in Car Audio System : Electronics
Amazon.com: HZPOWEN 10W Mini 3" HiFi Full Range Speaker 8 Ohm Anti-Magnetic Audio 2.0/2.1 Home Stereo Woofer Loudspeaker 90dB High Sensitivity for DIY Boom Box Satellites Speaker : Electronics
Amazon.com: BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch : Electronics
Amazon.com: OSD Audio 1000W Mono-Channel Class D Subwoofer Amplifier – Onboard DSP, 4-8 Ohm – SMP500 : Electronics
Amazon.com: Two Notes Torpedo Captor Reactive Loadbox DI and Attenuator - 8 Ohm : Musical Instruments
Amazon.com: Sound Storm EV4.400 Evolution 400 Watt, 4 Channel, 2 to 8 Ohm Stable Class A/B, Full Range Car Amplifier : Electronics
Amazon.com: MakerHawk 2PCS 4 Ohm 3 Watt Speaker for A rduino Single Cavity Mini Speaker Full-Range Cavity Mobile Portable Advertising Machine Speaker with 11mm Line Length JST-PH2.0mm-2 pin Terminal : Electronics
Amazon.com: Planet Audio PL1600.4 4 Channel Car Amplifier - 1600 Watts, Full Range, Class A/B, 2/8 Ohm Stable, Mosfet Power Supply, Bridgeable : Electronics
Amazon.com: Pack of 2 Full Range Bookshelf Speaker, 3 Inch 8 Ohm Anti-Magnetic HiFi Tweeter Wooden Enclosure Home Audio Woofer Multimedia Speakers (8Ω) : Electronics
Amazon.com: EBTOOLS TV Speaker, 2Pcs 4 Ohm 5W TV Box Speaker Loudspeaker Sound Amplifier Unit for LCD TV Advertising Player : Electronics
Amazon.com: Harmony Audio HA-A800.1 Car Stereo Class D Amp Mono 1600W Sub Amp, 43C124 12" Comp C12 Series 150W RMS 4 Ohm Sub and 212VH Car Audio Dual 12" Vented Stereo Sub
Amazon.com: KICKER 43VC124 Comp 12" Subwoofer in Vented Sub Box Enclosure, 4 -Ohm Bundle with Rockville RWK81 8 Gauge Amp Installation Kit and RXA-T1 Car Stereo Amp : Electronics
Amazon.com: Massive Audio HIPPO84V2 – 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 500 Watt RMS, 1000w MAX Dual 4 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: JBL Stage 810 800W Max 8" Stage Series Single 4 ohm Car Audio Subwoofer Speaker Bundled with Alphasonik Earbuds : Electronics
Amazon.com: Alphasonik Dynamis DCP8 8 inch 1000 Watts 4-Ohm Shallow Mount Flat Enclosed Sub woofer in Ported Vented Box for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer : Electronics
Amazon.com: BOSS Audio Systems ASK904B.64 Marine Boat 6.5 inch Speakers and 4 Channel Amplifier - 500 High Output, Bluetooth Remote, USB and Auxiliary, Waterproof Pouch : Electronics
Amazon.com: Sound Storm Labs EV4.1000 Evolution 1000 Watt 4 Channel 2 to 8 Ohm Stable Class A B Full Range Bridgeable Mosfet Car Amplifier with Remote Subwoofer Control : Electronics
Amazon.com: MB Quart RW-110A 800W Reference Series 10" 4-Ohm Power Subwoofer Amplifier with 8 Guage Kit Red and Gravity Magnet Phone Holder Bundle : Everything Else
Amazon.com: Planet Audio AC800.4 4 Channel Car Amplifier - 800 Watts, Full Range, Class A/B, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable : Electronics
Amazon.com: Pack of 2 Full Range Bookshelf Speaker, 3 Inch 8 Ohm Anti-Magnetic HiFi Tweeter Wooden Enclosure Home Audio Woofer Multimedia Speakers (8Ω) : Electronics
Amazon.com: Planet Audio AC8D 8 Inch Car Subwoofer - 1200 Watts Maximum Power, Dual 4 Ohm Voice Coil, Sold Individually : Electronics