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Yamaha 2.1-Channel Soundbar with Built-in Subwoofer Black SR-C20ABL - Best Buy
Amazon.com: DS18 SB10A 10" Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in Box
Kicker PT250 10" Subwoofer with Built-In 100W Amplifier - Walmart.com
SoundBase 440 28" Home Theater With AccuVoice, Built-In Subwoofer – ZVOX Audio
SB380 35.5" Sound Bar With 6 levels of AccuVoice, Built-In Subwoofer – ZVOX Audio
Amazon.com: Wohome Sound Bar 32-Inch 80W Soundbar with Built-in Subwoofer 2.1CH 3D Surround Sound Home Audio Sound Bars for TV Speakers, Support HDMI-ARC,Opt, RCA,AUX, Bluetooth 5.0, LED Display|Model S9960 : Electronics
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Marine Underseat Car Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLMRSBA8 : Electronics
Amazon.com: iLive Bluetooth Speaker System with Built-In Subwoofer, 7.28 x 8.86 x 7.28 Inches, Black (iHB23B) : Electronics
8" Active Amplified built in Amp Under Seat Sub Subwoofer Enclosed box ON SALE | eBay
Sennheiser AMBEO Soundbar With Built-In Subwoofer - AMBEOBAR
Pioneer TS-WX1210A - 12 Inch Sealed Enclosure Active Subwoofer with Built-In Amplifier - Amplified sub boxes - Online Car Audio & Stereo Store
10" Custom hand built subwoofer 5000rms (Team 10) - EM Audio Subwoofers
Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A : Electronics
10" Custom Hand Built Subwoofer 2500rms - EM Audio Subwoofers