RCF LF21X451 21" Woofer, 2000 W RMS, 4000 W program, 4.5" coil
RCF SUB 9007-AS - 7200W Dual 21" Active High Powered Subwoofer with 4" Voice Coil
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Active Rcf 9007-as Dual 21 Inch Bass Subwoofer Speaker Sound System - China Mini Speaker and Hot Seller Speaker price | Made-in-China.com
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SUB 9007-AS ACTIVE HIGH POWER SUBWOOFER - RCF
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![Yorkville Sound SA221S Dual 21" Synergy Array 6000W Active Portable PA Subwoofer | eBay](https://i.ebayimg.com/images/g/wKsAAOSwsYNgjCMo/s-l1200.jpg "Yorkville Sound SA221S Dual 21" Synergy Array 6000W Active Portable PA Subwoofer | eBay")
Yorkville Sound SA221S Dual 21" Synergy Array 6000W Active Portable PA Subwoofer | eBay
RCF V221-S Passive Bass Reflex Subwoofer (Black) V221-S B&H
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RCF SUB-9007AS Dual 21″ Active High Power Subwoofer – Sonic Circus
RCF TTS 56-A - 13600W Dual 21" Active High Power Subwoofer with 4.5" Voice Coil
RCF 9007-AS 7200 Watt Dual 21-Inch Powered Subwoofer | PSSL ProSound and Stage Lighting
