Skip to content
Skip to product information
1 of 2

21" Powered Single Subwoofer - SUBA21

$2,999.99 USD
$2,999.99 USD
Sale Sold out
Size: SUBA21
In stock.
  • Secure Checkout
  • 100% Authentic Products100% Authentic
  • Enjoy Free Shipping!Free Shipping
  • Live Chat SupportLive Support

21" Powered Single Subwoofer

The SUBA21 is a high-power active sub that delivers big bass in a compact size, pairing a single 21-inch woofer with a strong 1800W RMS built-in amp — the deep, earth-moving sound of a large driver without the bulk of a dual cabinet.

Hitting a 135dB peak and reaching down to 40Hz, the SUBA21 is built in strong, scratch-proof plywood — tough enough for the road but slim enough to tuck under a stage. XLR inputs allow fast, one-person installation.

Type: Powered
Frequency Response (-3dB): 40Hz − 250Hz
MAX.SPL : 129 dB Continuous, 135dB Peak
Drivers: 1×21" (531mm)LF
Rated Power: 1800W/4Ω RMS
Input Connectors: XLR
Net Weight: 130 lbs(59 kg)
Gross Weight: 140.8 lbs(64 kg)
Dimensions: 23.62"×30.71"×23.62" (600×780×600mm)

 
View Product Details

Q1: What are Cerwin-Vega Active Subwoofers designed for?
A: Cerwin-Vega Active Subwoofers are designed for professional audio systems that require powerful low-frequency performance, easy setup, and reliable output.

They are ideal for:

Live performances
Touring sound systems
DJs
Large events
Outdoor applications
Professional PA systems
Commercial audio installations

With built-in amplification and high-output bass performance, Active Subwoofers provide a convenient solution for users who need powerful low-end without additional external amplifiers.

Q2: Are Cerwin-Vega Active Subwoofers powered or passive?
A: Cerwin-Vega Active Subwoofers are powered subwoofer systems with built-in amplifiers, allowing them to operate without a separate external power amplifier.

The integrated amplifier design provides:

Faster setup
Simplified system connections
Consistent power delivery
Easier system transportation and deployment

This makes them a practical choice for mobile professionals and fixed installations where efficiency and reliability are important.

Q3: What makes Cerwin-Vega Active Subwoofers different from other subwoofer solutions?
A: Cerwin-Vega Active Subwoofers are built to deliver strong low-frequency impact, professional reliability, and simplified system integration.

Key advantages include:

Built-in high-power amplification
Deep and powerful bass response
Professional-grade enclosure designs
Reliable performance for demanding applications
Easy integration with powered and passive speaker systems

They are designed to provide the strong bass foundation and dynamic impact expected from professional Cerwin-Vega audio solutions.

Q4: Can Cerwin-Vega Active Subwoofers be integrated into a larger audio system?
A: Yes. Cerwin-Vega Active Subwoofers are designed to work as part of a complete professional sound system.

They can be combined with:

Powered full-range speakers
Passive PA speakers with external amplification
Line array systems
Professional audio processors

Adding an active subwoofer helps improve:

Low-frequency extension
Overall system power
Sound impact
Performance in larger venues

This allows users to build a more complete and balanced professional audio setup.

Q5: Why choose Cerwin-Vega Active Subwoofers for professional audio applications?
A: Cerwin-Vega Active Subwoofers are designed for users who need powerful bass performance, simple operation, and dependable professional performance.

Whether used for live events, touring systems, DJ setups, or commercial installations, they provide a powerful low-frequency foundation while reducing system complexity.

With built-in amplification and professional-grade construction, Active Subwoofers offer an efficient solution for creating impactful and immersive sound experiences.