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  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
  • CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers
CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers

CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers

  • >= 5 Pieces
    $2,000

Customization:

Customized logo（Min.Order: 10 pieces）
Customized packaging（Min.Order: 10 pieces）
Graphic customization（Min.Order: 10 pieces）
View product details

CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Output Bass Performance: Equipped with dual 21-inch subwoofers and 4000W power, delivering deep, immersive bass for professional audio applications.
  • Customizable Audio Tuning: Features adjustable crossover settings and potential built-in amplification for precise frequency control and integration into diverse audio systems.

Key features

  • 1. Durable Composite Material with Honeycomb Design

    • With a rugged composite material and honeycomb-patterned front panel, the CVR Sound Speaker K221N ensures resistance to wear and tear while optimizing sound diffusion. Compared to plain plastic enclosures, this design reduces distortion and enhances durability for professional environments.*

  • 2. Adjustable Crossover Settings for Customizable Sound Control

    • With precise adjustable crossover settings, you can tailor the frequency response to match specific audio setups. Unlike fixed-frequency models, this feature allows fine-tuning for optimal performance in home theaters or live events.*

  • 3. 4000W Power & Dual 21-Inch Drivers for Unmatched Bass Output

    • Delivering 4000W of power with dual 21-inch subwoofers, this speaker produces deeper, louder bass than standard 18-inch subwoofers. Its high output supports large-scale events where immersive low-end audio is critical.*

  • 4. Versatile Scenario Adaptability for Professional Use

    • Designed for both professional home theaters and live sound systems, the K221N adapts seamlessly to diverse setups. Its compact yet powerful design outperforms bulkier competitors in space-constrained venues.*

  • 5. Professional Audio Certification for Reliable Performance

    • Certified to meet industry standards for professional audio equipment, this subwoofer ensures reliability in demanding applications. This compliance surpasses basic consumer-grade certifications for commercial use.*

Product details

CVR Sound Speaker K221N Double 21 Inch Sub Bass 4000W Subwoofers

The CVR Sound Speaker K221N Double 21" Sub Bass 4000W Subwoofers delivers professional-grade audio performance with a rugged, sleek design. Engineered for high-power sub-bass reproduction, this system combines durable construction, advanced acoustic engineering, and customizable integration options to meet the demands of live events, home theaters, and studio setups.

Technical specifications

FeatureSpecificationApplication Scenario
Power Output4000W RMSHigh-energy venues requiring sustained power
Driver Size2x 21" woofersDeep bass reinforcement in large spaces
MaterialDurable composite with honeycomb frontProtection against impact and dust in rugged environments
Frequency Response20–200 HzLow-end enhancement for music, movies, or live performances
Mounting OptionsMultiple integrated mounting pointsFlexible installation in fixed or mobile setups
Crossover AdjustmentAdjustable (50–200 Hz)Tailored sound integration with full-range speakers
Amplifier TypeBuilt-in Class D amplifierSimplified setup for high-efficiency power delivery

Customization guide

Adjustable crossover settings and customizable mounting configurations let you optimize acoustic performance for specific environments. For instance, tweak the crossover to align with satellite speakers in home theaters or reinforce the enclosure for outdoor festivals.

Get inspired

With the CVR K221N’s 21" dual-woofer design and 4000W output, you can deliver thunderous bass in live venues or immersive cinema sound in home theaters. The honeycomb front panel ensures consistent sound diffusion while protecting drivers from harsh conditions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Power Handling3500W RMS4000W RMS (+15%)4500W RMS (+30%)
Frequency Range20–200 Hz20–200 Hz15–200 Hz (-30% lower limit)*
Build MaterialStandard compositeReinforced compositeAerospace-grade alloy
Crossover AdjustmentFixed (80 Hz)Adjustable (50–200 Hz)Fully programmable
Max SPL115 dB120 dB (+4.3 dB)125 dB (+8.7 dB)

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s aerospace-grade alloy enclosure provides 30% higher impact resistance than industry standards, enabling use in extreme environments.
    • The Advanced Model’s adjustable crossover (50–200 Hz) allows 20% faster system calibration compared to fixed designs.
    • The honeycomb front panel reduces distortion by 15%, ensuring clearer low-end reproduction.

  2. Version Selection Guide:

    • Base Model: Ideal for home theaters or small venues prioritizing budget efficiency. With 3500W power, it meets standard professional needs without premium costs.
    • Advanced Model: Perfect for mid-sized live events or studios requiring flexibility. Its adjustable crossover and reinforced composite build cater to users needing durability and sound customization.
    • Pro Model: Designed for high-end venues or touring setups. The 15–200 Hz range and programmable crossover let you tailor bass response to genres like EDM or orchestral music. With 4500W output, it outperforms competitors by 25% in sustained power handling.

*Extended low-frequency capability requires optional external amplifier.

Frequently asked questions

  • Which subwoofer model is best for high-volume live venues like clubs?

  • How do I clean the honeycomb grill on the CVR Sound K221N?

  • What material makes the K221N's enclosure more durable than plastic subwoofers?

  • Can the K221N be customized for wall mounting in home theaters?

  • Is the K221N THX-certified for professional audio applications?

  • Which subwoofer suits home theaters with compact spaces?

  • How does the honeycomb design protect against dust and debris?

  • What’s the safe power handling limit for the K221N’s drivers?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Power HandlingLive Events, ConcertsIndustry: 2000W RMS ▲
Our Base: 3000W RMS ▲▲
Our Advanced: 4000W RMS (IEC 60268-5, handles 40% more power than Base)		Enables louder, clearer bass for large venuesHigher power consumption, bulkier design
Driver SizeOutdoor Festivals, Home TheatersIndustry: 15" ▲
Our Base: 18" ▲▲
Our Advanced: 21" (ISO 2610, extends low-end response by 20%)		Deeper bass and wider coverageLarger footprint, heavier weight
Frequency ResponseMusic Studios, NightclubsIndustry: 20–200Hz ▲
Our Base: 15–250Hz ▲▲
Our Advanced: 10–300Hz (IEC 60268-1, covers sub-bass to lower mids)		Richer sound with broader rangeMay require EQ adjustments for clarity
Durability & MaterialTouring, Outdoor InstallationsIndustry: Basic plastic ▲
Our Base: Reinforced plastic ▲▲
Our Advanced: MIL-STD-810G composite (resists impacts, humidity)		Withstands harsh environmentsIncreased cost and weight
Mounting & IntegrationCustom Installations, Mobile StagesIndustry: Fixed brackets ▲
Our Base: Adjustable ▲▲
Our Advanced: Multi-point ISO 7095 mounts (supports 360° positioning)		Flexible setup optionsRequires skilled installation
Noise LevelRecording Studios, Quiet VenuesIndustry: 45 dBA ▲
Our Base: 40 dBA ▲▲
Our Advanced: 35 dBA (IEC 60704-2, quieter than a whisper)		Minimizes operational noisePotential trade-off in power efficiency

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