Top 6 Best 21 Inch Subwoofer

1600 WATTS MAX POWER This subwoofer speaker has a 400 Watts RMS800 Watts Program1600 Watts Peak Power, providing louder bass than traditional subwoofer speakers. Also has Digital Signal Processor with Boost for Extended Low-Freq Control. NEW LOUDER DESIGN For this powered subwoofer, innovative acoustic engineers created the largest voice coil and magnet system possible, creating this unique and powerful design with LED indicators, ideal for your home theater or Pro PA system. ADVANCED TECHNOLOGY FEATURES Specifically designed and optimized to work with the built-in amplifier to produce the most performance, resulting in a high-quality sound with resonance, adjustable settings, and Balanced XLR TRS Input Output Jacks. SMOOTH WOODEN FINISH The smooth finish of the subwoofer home theater allows it to have an elegant feel and gentle touch. Making it comfortable for the user emphasizes the subwoofer's durability. Also has a Pole Mount Socket and carrying handles. BUILT TO LAST Made with wooden enclosure with MDF board, this subwoofer box system will surely prove its longevity unlike other home audio subwoofers. Its dimensions are 13.78'' x 20.87'' x 20.47'' -inches, w passive heatsink with fan for cooling.

21 cast aluminum frame. 5 voice coil and 200-oz magnet produce superb bass sound. 1000W RMS power handling capability.

21-inch rear horn loaded subwoofer. 2400 watts 3600 watts Peak. 142db Peak 136dB Continuous. 32-150 Hz - 3dB Max SPL. Selectable Punchy, Smooth and Deep modes.

Large 4-12 insideoutside wound voice coil to handle 1,000 watts RMS for extended sessions. High energy ferrite motor assembly with extensive venting for minimal power compression. Copper shorting ring keep inductance under control for incredibly low distortion. Push button terminals make wire connection easy and extremely secure. Rigid cast aluminum frame to withstand the use and abuse of the professional sound environment.

High Quality. Package Dimensions 14 H x 25 L x 25 W inches. Package Weight 62.0 pounds. Country of Origin China.

3400 W continuous program power capacity. 116 mm 4.5 in split winding aluminum voice coil. 32 - 1000 Hz response. Product type SPEAKERS.

FEATURES 5 Voice Coil 4000 Watts Program Power 97.2 dB sensitivity 32 Hz - 1500 Hz frequency response Forced air ventilation SPECIFICATIONS Nominal Basket Diameter 533 mm 21 inch Rated Impedance 8 ohm . SPECIFICATIONS Rated Power Handling 2000 Watts Program Power 4000 Watts Sensitivity 97.2 dB Frequency Range 32 hz - 1500 hz Magnet 200 Oz 280x140x25 mm 11x5.5x1 inch Minimum Impedance 5.3 ohm Voice Coil Diameter 127 mm 5 inch Voice Coil Material Fiberglass Voice Coil Length 25 mm 1 inch Number of Layers 2 Kind of Layers insideoutside Top Plate Thickness 15 mm 0.59 inch . THIELE SMALL PARAMETERS Resonance Frequency fs 32 hz DC Resistence Re 35.3 ohm Mechanical Factor Qms 35.04 Electrical Factor Qes 30.4 Total Factor Qts 30.37 BL Factor BL 332.4 T m Effective Moving Mass Mms 3278.8 gr Equivalent Cas Air Load Vas 3289.6 liters Effective Piston Area Sd 30.123 M Maximum Linear Excursion Xmax 39 mm Half-Space Efficency Eff 32.2 . MOUNTING INFORMATION Overall Diameter 552 mm 21.73 inch Bolt Circle Diameter 527 mm 20.7 inch Bolt Hole Diameter 6.5 mm 0.25 inch Front Mount Baffle Cut-Out 512 mm 20.16 inch Rear Mount Baffle Cut-Out 512 mm 20.16 inch Depth 230 mm 9.05 inch PHYSICAL INFORMATION Net Weight 22.8 Kg 50.3 Lbs Shipping Weight 25.4 Kg 56 Lbs Dimension WxDXH 610x610x330 mm 24x24x13 inch . The BlastKing Profile series brings high output, low frequency woofers in 12, 15, 18 and 21 options. These transducers are capable of very low frequencies and are intended for use in a reflex or horn loaded cabinets. They are all made in a high-quality die cast aluminum frame and boast a heavy-duty ferrite magnet that allows for increased power ratings. The Profile transducers are perfect for those needing high level, low frequency output transducers with very low distortion..

PRORECK 8000WATT POWERED ARRAY SPEAKER AND SUB SET Consists of 1 active subwoofer,1 passive subwoofer, 6 6-inch line array speakers, 1 6-feet Power Cable, 1 remote control and 1 user manual. The active subwoofer features a 18-inch amplifier and streams clear music to the line array speakers, and then deliver music to all audiences.. BLUETOOTH WIRELESS MUSIC STREAMING Instantly pair with your Phone, etc with line of sight of up to 66 feet. You can also use the remote control to switch mode, playpause, switch to previousnext song, increasedecrease volume Telescoping stands can adjust the pa system from 78 inch to 84 inch. Use side handles to lift and transport the subwoofers conveniently.. MULTI-FUNCTIONAL POWERED PA SYSTEM SPEAKER The powered system set features BLUETOOTHUSB DRIVESD CARD functions. Simply insert USB driveSD CARD to playback songs. It has 3 kinds of line input Stereo RCA input, 3.5mm AUX input and 6.35mmXLR combo input 2-channel Mic input 2-channel XLR output.. WIDE RANGE OF USAGEThe PA system has 8000 Watt Peak, and can accommodate up to 500 persons and 1000 . Wide frequency response from 100-20KHz makes it suitable for amplifying any type of audio including music or vocals. Great for wedding, meeting, speeches, churches, class teaching, gymnastics, conference, home theater, etc. Easily connect to multiple musical instruments.. DEEP THRILLING STEREO SOUND Rock-solid 2 subwoofers are made of MDF material and reduces resonance for distortion-free and accurate response. 6 tweeters and 6 mid-tweeters ensure clear and deep stereo sound. Note Items are shipped with 3 packages separately. Item weight 94.7lbs88.6lbs60lbs Item size 26.32425.8inch 28.316.520.86 inch..

Features Three layer glass fiberAramid honeycombGlass fiber cone, Aluminum dustcap, Injection molded foam surround with VAST, Proprietary surround mechanical clamping ring, Dual Nomex progressive spiders with integrated lead wires, Aluminum diecast frame with integrated heat sink fins and venting, Custom push spring insulated 4 AWG terminals, Single layer edge wound aluminum 5 voice coil, Since voice coil design with dual pushpull windings, Integrated die cast aluminum trim ring, and Dua. Specifications Magnet Weight 115 oz., Voice Coil Diameter 5.0, Mounting Depth 15.62 in., Shipping Weight 106.30 Lbs., Fs 27 Hz, Qts 0.32, Qms 1.93, Woofer Displacement 0.339 cu. ft., Sd 1472 cm2, Size 19, Nominal Impedance 1-Ohm, Power Handling 3000 Watts RMS 6000 Watts Max. Speaker Connector 4 AWG Compression Terminal, SPL 1w1m 91 dB, Qes 0.38, Cutout Diameter 17.54 in., Re 0.8 Ohms, Le 0.45 mH, CEA-2031 Compliant, Vas 104.9 L, Xmax 34 mm, Subwoofer Type Superwoofe.

Kicker 47QL7R12 Car Audio Quad L7R 12 Subwoofer SPL 4800W Sub Box Enclosure New.