21 inch speakers

Top ranking choices for B&H customers who searched for 21 inch speakers

B&H # CECVHFA21S MFR # CVHF-A21S

The CVHF-A21S 21" Active Subwoofer from Cerwin-Vega is a 1200 watts continuous and 2400 watts peak powered subwoofer that will add low-end "woomph" to any home sound system. With its large, 21" driver and built-in high-power amplifier, the CVHF-A21S will increase the low-end feel when integrated into any system.

Originally designed for on-stage use, the high performance amp and driver of the CVHF-A21S is tuned for use in the home, with no additional amplifier required.
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Expected availability: 7-14 business days
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You Pay: $1,799.00

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Capable of delivering 3600W RMS—and 7200W peak—the RCF SUB 9007-AS is an active subwoofer. It provides two 21" neodymium woofers with 4.0" inside-out voice coils, and as such, can deliver low frequencies within live sound applications, such as clubs, ballrooms, and houses of worship.

The unit operates between 25 and 400 Hz, giving you a DSP-controlled input section that allows you to choose among presets and modify delay settings. It can handle over 141 dB SPL, making it an apt choice for reasonably loud environs. XLR connections are provided, and input signals can be either balanced or unbalanced, further expanding the unit's versatility. Ethercon connections allow it to integrate within RCF's RDNet remote control system, allowing you to change settings over a network.  

Controls are offered for Gain, EQ, Crossover, Phase Switch, Cardioid, and Output Delay. The SUB 9007-AS' cabinet is fashioned out of Baltic birch and capped with a steel grille. This unit pairs well with RCF D-Line HDL50-A and HDL-20A array systems.

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Top Highlights

  • For Live Sound Reinforcement
  • 7200W Peak, 3600W RMS
  • 2 x 21" Neodymium Woofers
  • 4.0" Inside-Out Voice Coils
  • 25 to 400 Hz Frequency Response
  • DSP-Controlled Input Section
  • XLR I/O with Balanced/Unbalanced Inputs
  • Remote Control Over Ethercon Connections
  • Baltic Birch Cabinet with Steel Grille
  • 8 Side Handles

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Expected availability: 3-7 business days
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You Pay: $6,998.50

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The CVX Series 21" Powered Subwoofer from Cerwin Vega features 2000W of Class D power with two combo XLR/TRS inputs and three XLR outputs. The angle-fired 21" woofer, with LF extension to 29 Hz, reduces port turbulence without affecting the performance. When multiple subwoofers are being used close together and rear sound rejection is needed, the cardioid mode can increase the forward volume by 6 dB while reducing rear volume by 12 dB. Covered in Cerwin-Vega's durable TourShield finish, the CVX subwoofer is suitable for touring, ballrooms, medium to larger clubs, outdoor venues, houses of worship, rentals, and staging applications.
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Expected availability: 3-7 business days
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You Pay: $1,299.00

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The DVA S1521N from dB Technologies is a powered 21" 1500 watt subwoofer housed in a bass reflex enclosure that has been tuned for accurate, ultra low-frequency response.

Made of durable birch multiplex housing covered in black textured lacquer, the housing provides six carrying handles, an M20 pole mount, and bushings on the rear panel that accept casters. Pick-points for attaching harnesses are built into the top panel to enable easy, safe stacking.
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Expected availability: 7-14 business days
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You Pay: $4,899.00

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The KMT21 Mark I 1600W Powered Subwoofer with DSP from K-array is a complete audio system, featuring a 21” powered subwoofer, programmable on-board DSP, and multiple analog and digital inputs & outputs for creating a broad range of speaker configurations. Equipped with a codec that lowers the signal/noise ratio, the KMT21 Mark I Subwoofer comes with a 5 VDC power connector on the rear panel, and enhanced functionality for creating presets. The AES/EBU output is latency-free (thru).

The KMT21 Mark I Subwoofer features an integrated touchscreen that provides intuitive control over the main DSP functions including input/output levels, signal routing, offset delays for subwoofer and speaker output (up to 10 ms, each) and overall system delay (up to 330 ms). All DSP functions, including EQ, can also be remote controlled via software over USB or RS485 (3-pin XLR).

The subwoofer further provides two balanced analog line-level inputs and a two-channel AES/EBU digital input. An integrated Class-D amplifier delivers 2 x 2400W at 4 ohms, with a max THD of 1% (EIAJ test @ 1 kHz). The rear panel features multiple analog and digital outputs, including a Speakon output to connect a wide array of passive speakers including Kobra & Python mid-high modules or KMT21P additional passive subwoofers (sold separately). To optimize performance, the on-board DSP includes presets to drive K-array speakers.

The KMT21 Mark I Subwoofer’s four-corner port configuration provides symmetrical back-loading to the speakers for extended bass response with low distortion. The port configuration also provides incredible structural strength to the cabinet, despite its light weight. Pocket handles and an M20 thread-mount position for attaching mid-high speakers makes it convenient to use and ideal for medium-throw applications in theaters, concert halls, and audio/video installations.

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Expected availability: 7-14 business days
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This item is noncancelable and nonreturnable.

You Pay: $5,684.49

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B&H # JBCHARGE3BLK MFR # JBLCHARGE3BLKAM

The black Charge 3 Portable Bluetooth Stereo Speaker features dual 1.97" drivers and twin passive radiators for deep, accurate bass and up to 20W of audio power. It supports Bluetooth wireless functionality, so you can stream music wirelessly from up to 3 separate Bluetooth-enabled devices. Additionally, you can connect the Charge 3 to other JBL Connect-enabled speakers for an even bigger sound.

The Charge 3's integrated 6000mAh lithium-ion polymer battery lasts up to 20 hours on a full charge, and lets you charge other portable devices via the USB port. The Charge 3 is equipped with a built-in microphone, so you can make and receive hands-free speakerphone calls. The Charge 3 also features an IPX7 waterproof design, so there's no more worrying about rain or spills—you can even submerge it in water.
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"Love it...not bad...It's been a month now and I take it hiking, use it at the beach and for family gatherings and I gotta tell you it lasts me the whole day and it's real loud, when I take it to hikes everyone can hear it and think that I'm having a party (haha) works great in the rain and has not failed me, I would definitely recommend it for anyone interested in a Bluetooth speaker like this one....Im not the system freak but I heard alot of different ones in my life time.I was able to identify what they were but when I heard JBL in was different and clear.I purchased them for myself in about 2008 and here it is 2017 and ppl still remember my system and express thats one of the best systems they ever herd.For ppl to remember a system,thats special.I know JBL is top of the line with Bass,Equalizer setting and very clear.Thats why I would recommend to anybody being first choice."

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Top Highlights

  • Dual 1.97" Drivers
  • Twin Passive Radiators
  • Bluetooth Wireless Connectivity
  • Pair up to 3 Mobile Devices at Once
  • IPX7 Waterproof Rating
  • Built-In Mic for Speakerphone Calls
  • Pairs with Other JBL Connect Speakers
  • USB Charging Port
  • Durable Fabric Material & Rubber Housing
  • Lasts up to 20 Hours on a Charge

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Sugg Retail Price: $149.95

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The black Flip 4 Wireless Portable Stereo Speaker from JBL is a Bluetooth-enabled speaker equipped with dual 40mm drivers that can produce up to 16W of audio power. In addition to both Bluetooth and AUX-in connectivity options, the Flip 4 also features JBL Connect+ technology, which enables you to wirelessly link other JBL Connect+ enabled speakers together for an amplified listening experience. The Flip 4 is also equipped with an integrated noise-canceling microphone for clear conference calls and both Siri and Google Now integration.

The Flip 4's 3000mAh rechargeable battery provides up to 12 hours of operation on a full charge, and can be recharged via the included micro-USB cable. Additionally, its IPX7 waterproof design makes it an all-purpose, all-weather solution for your portable audio needs.
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"Love it...Love it....I have had other portable speaker brands & I must say this one is the best one I have had, long lasting battery life I don't have to charge for days at a time, very loud with a nice bass....This is better than other speakers I have owned, is louder, works better, and is better looking :) I love the fact that it goes under water, that really comes in clutch since I'm always at a lake or pool in the summer."

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Top Highlights

  • Dual 40mm Drivers
  • Up to 16W of Audio Power
  • Bluetooth 4.2 Technology
  • Supports A2DP, AVRCP
  • Pair with Other JBL Connect+ Speakers
  • Built-In Speakerphone
  • Voice Assistant Integration
  • IPX7 Waterproof Rating
  • Plays up to 12 Hours on Full Charge

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Price: $99.95

Instant Savings: $10.00

You Pay: $89.95

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Get enhanced audio power with the Xtreme Portable Bluetooth Speaker in black from JBL. This Bluetooth-enabled speaker features four active transducers—two 1.4" drivers and two 2.5" woofers—and two JBL Bass Radiators that combine for up to 40W of audio power. It features an integrated noise- and echo-canceling microphone for clear conference calls, and JBL Connect technology that can wirelessly link up to 3 JBL Connect-enabled speakers together to amplify the listening experience.

The Xtreme's 10,000mAh rechargeable battery provides up to 15 hours of operation on a full charge, and can be recharged with the included power adapter. Additionally, the Xtreme features dual USB ports that can charge any of your compatible devices and is equipped with a 1/8" auxiliary input for connection with wired sources.
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"wOw bass...5 stars!...I bought this speaker and it's great and all but totally lacks a replay feature like a triple press and I highly recommend that you introduce a feature to where you can lock it from the app because I have two of these and one was stolen recently... It costs a lot to buy a new one and I don't quite have any money for another....Weeks ago I love it but I have the main concern on last time I plug it to charge I leave it charging until the light bars when of now yesterday I plugged it to charge and the light bar never when off I leave it charging for long time an the 4 lil light keep flashing I don't know if the light has to go of after is fully charged or when do I know is fully charged??"

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Top Highlights

  • Equipped with Bluetooth 4.1
  • Dual Powerful & Portable 1.4" Drivers
  • Works with Any Stereo Bluetooth Device
  • Supports A2DP Wireless Stereo Bluetooth
  • Dual USB Charging Ports
  • Plays Up to 15 Hours on Full Charge

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You Pay: $197.85

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