K-ARRAY KU210 Ultra Steel Passive Subwoofer

( Brand: K-array ), ( Manufacturer Part Number: KU210 ), ( Connectivity: Wired ), ( Type: Passive Subwoofer )

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The K-Array KU210 Ultra Steel passive subwoofer is a powerful and versatile audio solution designed for professionals in the fields of live sound, installation, and integration. This subwoofer boasts an impressive 210mm (8.27 inches) long-excursion driver, which delivers deep, punchy bass with exceptional clarity and definition.

The KU210 Ultra Steel subwoofer is encased in a robust, 2mm (0.079 inches) thick, powder-coated steel enclosure. This not only provides superior protection against the rigors of the road, but also offers a sleek, modern appearance. The steel enclosure also contributes to the subwoofer's remarkable rigidity, helping to minimize unwanted resonances and distortions.

The KU210 Ultra Steel subwoofer features a front-firing, bass-reflex (passive) design. This configuration allows the subwoofer to produce powerful, accurate low-end frequencies while maintaining a compact footprint. The subwoofer's M8 threaded pole mount allows for easy integration into a variety of systems, while its removable grille ensures the driver is protected when not in use.

The subwoofer's large, 3-inch (76.2mm) voice coil provides ample power handling and enables the driver to deliver high SPL (Sound Pressure Level) performance. The KU210 Ultra Steel subwoofer can handle a continuous power rating of 300 Watts RMS and a peak power rating of 1200 Watts.

The subwoofer's frequency response ranges from 35 Hz to 150 Hz (-6 dB), allowing it to effectively reproduce the deep, resonant bass frequencies that are essential for music, movies, and live events. The KU210 Ultra Steel passive subwoofer is an ideal choice for applications where high-quality, reliable, and powerful low-end reinforcement is a must.

The K-Array KU210 Ultra Steel passive subwoofer is a popular choice for those seeking high-quality, discreet subwoofer solutions for professional audio applications. Here are some pros and cons that might help you make an informed decision about purchasing this subwoofer:

1. Discreet Design: The KU210 Ultra Steel subwoofer is known for its sleek, compact design. Its steel grille and black powder-coated finish make it visually appealing and suitable for installations where aesthetics are a concern.

2. High Power Handling: With a power handling capacity of 1200W peak and 600W RMS, the KU210 Ultra Steel can deliver powerful and dynamic bass.

3. Low Frequency Response: The subwoofer's frequency response ranges from 30Hz to 150Hz, ensuring it can produce the deep, resonant bass that is essential for many music genres and audio applications.

4. Versatile Mounting Options: The KU210 Ultra Steel offers various mounting options, including wall, ceiling, and pole mount, making it adaptable to different installation scenarios.

5. Durable Construction: The subwoofer's steel grille and powder-coated finish provide excellent durability, making it suitable for harsh environments and frequent use.

1. Limited Frequency Range: Compared to some active subwoofers, the KU210 Ultra Steel's frequency range may be limited, which could impact its performance in specific applications.

2. No Built-In Amplifier: Since the KU210 Ultra Steel is a passive subwoofer, it requires an external amplifier to function, which could add to the overall cost and complexity of the system.

3. Heavier Than Other Subwoofers: At approximately 63 lbs (28.5 kg), the KU210 Ultra Steel is heavier than some other passive subwoofers, making it more challenging to transport and install.

The K-Array KU210 Ultra Steel passive subwoofer offers several advantages, including its discreet design, high power handling, deep bass response, and versatile mounting options. However, it also has some limitations, such as its limited frequency range and the need for an external amplifier. If these factors do not pose significant issues for your specific application, the KU210 Ultra Steel could be an excellent choice for delivering powerful, dynamic bass in a visually appealing and durable package.

If you're looking for a discreet, high-performance passive subwoofer with a compact design and the ability to handle high power levels, the K-Array KU210 Ultra Steel is worth considering. It's suitable for various professional audio applications where deep, resonant bass is essential, and its durable construction ensures long-lasting performance. However, be prepared for the additional cost and complexity of providing an external amplifier to power the subwoofer.

Details:

Tested Good Working Condition. Condition: F4-C4. Audio cables are not included.

Package Includes: The speaker only as shown in the pictures. The speaker has some signs of wear due to previous usage, please refer pictures. Cosmetic condition: This is a used item. Does Not Include: Audio cable any other accessories not mentioned above nor shown in the pictures.

part #: ku210 prices

• $799.99-$900.00

specifications shuspea:

• brand: K-array
• mpn: Ku210
• connectivity: Wired
• type: Passive Subwoofer

shipping shuspea:

• cost: $0.00
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• transit: 3-5 Days
• type: Fixed

offer shuspea:

• started: August 24, 2025
• best offers: True
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 2

seller shuspea:

• rating: 98.3%
• # reviews: 48949
• city: Columbus, Ohio

returns shuspea:

• paid by: Buyer
• time: 30 Days
• method: Money back
• policy: Returns Accepted

general shuspea:

• TV, Video Home Audio > Home Audio > Home Speakers Subwoofers
• condition: Used

payments shuspea:

• wallet: Google-pay
• other
• credit card: Diners-club

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