The LB20-SW400 from Bosch is a high-performance, dual 10-inch (254 mm) subwoofer designed to deliver powerful and deep bass for a wide range of professional and commercial sound applications. With robust weather resistance (IP54 and optional IP65 rating), this subwoofer is ideal for both indoor and outdoor environments, including venues like restaurants, fitness clubs, theme parks, retail spaces, and more.

The LB20-SW400 is engineered for background and foreground music, paging, and sound reinforcement applications, providing a versatile solution for a variety of commercial audio systems. With 400 W continuous power handling and the ability to output 120 dB maximum SPL (126 dB peak), this subwoofer ensures high-quality, impactful bass performance.

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Key Features

• Dual 10-inch Woofers: Offers deep, powerful bass for sound reinforcement, ideal for high-demand professional applications.
• Weatherproofing (IP54 & IP65): Designed to withstand outdoor conditions, with the ability to upgrade to an IP65 rating using the included port plug accessory.
• High Power Handling: 400 W continuous power (1600 W peak) for exceptional bass output with 120 dB max SPL (126 dB peak).
• Flexible Mounting Options: Can be floor-mounted or flown using M10 fly points and includes a U-bracket for various installation needs.
• Optional Transformer and Crossover Accessories: Available for integrating into constant voltage systems or customizing frequency responses for specific applications.
• Compact and Durable Design: Molded polypropylene enclosure and zinc-plated powder-coated grille for superior durability and protection against environmental elements.

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Applications

The LB20-SW400 subwoofer is suitable for:

• Commercial Venues: Restaurants, bars, fitness clubs, retail spaces, hospitality.
• Outdoor Locations: Patios, theme parks, gardens, public spaces.
• Sound Reinforcement: For both foreground and background music, and powerful low-frequency support in any installation.

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Technical Specifications

Acoustics

• Frequency Response:
  • (-10 dB): 33 Hz - 500 Hz
• Sensitivity: 94 dB (1 W, 50 Hz - 150 Hz, 1 meter).
• Max SPL: 120 dB continuous, 126 dB peak.

Power Handling

• Continuous Power (Pink Noise): 400 W (1600 W peak).
• Recommended High-Pass Filter: 40 Hz, 24 dB/octave.

Impedance Options

• Stereo Mode: Two 8 Ω drivers (each).
• Mono Mode: One 4 Ω driver.

Transducers

• Low-Frequency Driver: Two 10-inch polypropylene cone woofers, each with a 2-inch voice-coil for robust bass performance.

Connectors

• Two removable locking 4-pin Euroblock connectors for easy wiring.
• Max Wire Size: 12 AWG (2.05 mm).

Weather Resistance

• IP54 Rating: For resistance against dust and water splashes, making it suitable for most outdoor environments.
• Optional IP65 Rating: Achieved when port covers are installed, providing complete weatherproofing for harsh outdoor conditions.

Construction

• Material: Polypropylene enclosure for durability and weatherproofing.
• Grille: Zinc-plated and powder-coated for resistance to corrosion.

Dimensions and Weight

• Dimensions (H x W x D): 356 mm (14.0 in) x 651 mm (25.6 in) x 491 mm (19.3 in).
• Net Weight: 17.9 kg (39.5 lbs).
• Shipping Weight: 21 kg (46.3 lbs).

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Included Accessories

• Subwoofer Feet: For floor installation.
• Allen Wrench: For adjustments.
• Weather Input Cover: To protect input connections from the elements.
• IP65 Port Covers: For enhanced weatherproofing (when installed).
• Screws: For securing weather input cover and port covers.

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Certifications and Approvals

• Complies with IEC 60068-2-5 (Solar Radiation), IEC 60068-2-11 (Salt Mist), IEC 60068-2-42 (SO2), IEC 60068-2-60 (Chlorine), and IEC 60529 standards for environmental resistance.
• IP54 and IP65 Rated for weather resistance.

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Architectural and Engineering Specifications

The LB20-SW400 is a dual-driver subwoofer system designed for surface-mount installations. The system consists of two 10-inch weather-resistant polypropylene cone woofers with 2-inch voice-coils. The subwoofer is capable of handling 400 W continuous power and delivers a frequency response of 33 Hz - 500 Hz (-10 dB). The subwoofer's enclosure is made of polypropylene, and the grille is zinc-plated and powder-coated for durability and corrosion resistance.

It can be floor-mounted or flown with M10 fly points and includes a U-bracket for versatile mounting options. The speaker is designed to be used in both stereo mode (two 8 Ω drivers) and mono mode (one 4 Ω driver), with detachable Euroblock connectors for easy wiring.

The system meets IP54 weather resistance standards, and with the installation of port covers, it achieves IP65 rating for protection against dust and water, making it suitable for harsh outdoor conditions.

The surface mount subwoofer shall be the LB20-SW400 model from Bosch.