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Eighteen Sound 21" Subwoofer Speakers

These are the largest subwoofers you can buy today. And they can handle the power! A 21" subwoofer will roll your socks up and down with ease! Available in both regular ceramic or neodymium type magnets for lighter weight, only 18 Sound can give you the replacement subs you need at a great price.



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18 Sound 21LW1400 21" Subwoofer 18 SOUND 21LW1400

21" Subwoofer Speaker,
1400 Watts AES, 4" Voice Coil,
8 Ohms, 99dB Sensitivity

Our Price: $539.99
18 Sound 21NLW9601 21" Subwoofer 18 SOUND 21NLW9601

21" Neodymium Subwoofer Speaker
1800 Watts AES, 5.3" Voice Coil
8 Ohms, 98dB Sensitivity

Our Price: $649.99