One unit (not pair) |21 Inch Woofer for Bass Compensation of Open Baffle or Cabinet | W-21 - Lii Song (Lii Audio), unique speaker, amplfier, quality and cost-saving parts for HiFi DIY
BASSBOSS DJ21S 21-Inch 2400W Powered Subwoofer | PSSL ProSound and Stage Lighting
Amazon.com: Sound Town 21” 1000W Cast Aluminum Frame Woofer (Low Frequency Driver), Replacement Woofer for PA/DJ Subwoofer Cabinets (STLF-21500A) : Musical Instruments
Dayton Audio HTS545HE-4 Kraken 21" High Excursion Subwoofer with 5" Voice Coil 4 Ohm
B&C 21SW152 21" Professional Neodymium Subwoofer 8 Ohm - Walmart.com
RCF LF21X451, Woofer 21", 2000 Watt RMS / 8 Ohm | MUSIC STORE professional
21 inch Eminence Tour Grade Replacement Speaker – Eminence Speaker, LLC
B2 Audio XM21 21 inch subwoofer 3000W RMS | Wattsuppaudio
9921b: 1500w to 2500w - 21 Inch Power Tuned Subwoofer - DD Audio
Eminence NSW6021-6 21" Professional Neodymium Tour Grade Subwoofer Driver
DS18 PRO-BX Neodymium 21" Woofer 6000 Watts MAX 6" SVC 1-Ohm
Blastking PROFILE21 21" 4000 Watts High Output Woofer
Amazon.com: DS18 PRO-BX21N.1 Car Subwoofer Audio Speaker - 21" in Neodymium Magnet, 6" Voice Coil, 1 Ohm Impedance, 3000W Rms Power, 6000W Max Power - Reinforced Paper Cone for Outstanding Performance : Electronics
B&C 21SW152-4 21" 4000W Neodymium Subwoofer 4-Ohm
D.A.S Audio Event-121A Powered 21" Direct Radiating EVENT-121A
LaVoce SAN214.50 21" Neodymium Subwoofer 8 Ohm
X21P/X21A 21″ Ported Subwoofer (Passive or Amplified) – Seaton Sound, Inc
21 inch Eminence Tour Grade Replacement Speaker – Eminence Speaker, LLC
AccuGroove Whappo Grande Bass 21" Subwoofer – AccuGrooveLLC
4) B&C 21SW152-8 21" Neodymium Subwoofer 8 Ohm DJ Live Sound 4000Watts Bass Sub | Reverb
B&C 21SW152-4 21" Neodymium Subwoofer 4 Ohm
US221-2 Dual 21" Direct-Radiating Subwoofer | Fulcrum Acoustic
