EAW Otto - 3400W 2 x 18-inch Powered Subwoofer with 4-inch Voice Coil and Dante in Black Finish

The EAW Otto is a revolutionary 3400W 2 x 18-inch powered subwoofer designed to deliver exceptional low-frequency extension and pattern control. As the world's first Adaptive subwoofer, Otto employs two Offset Aperture-loaded woofers paired with independent on-board amplification, processing, and networking. This unique design allows Otto to perfectly balance low-frequency coverage with cancellation, offering omni, cardioid, hyper-cardioid, or any intermediate pattern with just a single module. When combined in arrays, Otto provides users with nearly limitless possibilities in low-frequency pattern control, making it an ideal solution for a wide variety of performance types and venue sizes.

At the heart of the Otto subwoofer is its innovative coaxial design, which includes two high-power 18-inch cones with Offset Aperture loading, generating four optimally spaced acoustical sources (one in each corner). This configuration allows the Otto subwoofer to deliver exceptional efficiency and minimize harmonic distortion, even at maximum output levels. The clever transducer, port, and enclosure design enable Otto to achieve extremely high output levels, while maintaining impact and low-frequency extension typically associated with much larger enclosures. The rotational symmetry of the module provides immense flexibility in designing systems for optimal coverage, with the ability to stagger the woofer orientation within the array to provide maximum 3D coverage. Using EAW's Resolution 2 software, users can easily determine the best configuration based on their specific coverage and performance needs.

One of the standout features of the Otto subwoofer is its ability to produce complex directivity patterns with arrays. Whether in omni, cardioid, or hyper-cardioid modes, Otto allows for seamless control over the low-frequency sound field with just a single module. Adaptive Performance automatically determines all the necessary parameters to deliver the desired output pattern based on the user-defined coverage and performance requirements. This system simplifies the setup process, reducing the time and effort needed for configuration compared to traditional subwoofer arrays. Additionally, Otto's on-board diagnostics and Adaptive Healing continuously monitor and correct performance in real time, ensuring optimal sound output throughout the event.

Designed for maximum performance and durability, the Otto features a high-quality exterior-grade Baltic birch plywood enclosure, which is protected with EAW's wear-resistant RoadCoat textured finish. The enclosure is also equipped with powder-coated cast aluminum handles for easy handling and transport. The Otto's rugged design ensures it can withstand the demands of live sound environments, while its perforated aluminum grille adds to the overall durability. The unit's power amplifiers and processing are integrated on-board, with the system capable of delivering up to 3400W of power through two 1,700W VLF, modified Class D amplifiers. The Otto is also Dante-enabled, allowing for flexible, high-quality audio networking via Ethernet. Whether used in small venues or large-scale events, Otto's innovative design, combined with its powerful performance and flexibility, makes it an invaluable tool for sound engineers and performers alike.

Features

• 3400W powered subwoofer with dual 18-inch woofers and 4-inch voice coils
• Offset Aperture loading design for four acoustically spaced sources, providing exceptional efficiency and minimal harmonic distortion
• Adaptive performance with omni, cardioid, hyper-cardioid, and customizable low-frequency patterns from a single module
• Maximum SPL (whole space): 131 dB average, 137 dB peak; (half space): 137 dB average, 143 dB peak
• Operating range from 22 Hz to 160 Hz, with calculated output limits of 140 dB maximum SPL
• On-board diagnostics and Adaptive Healing for continuous monitoring and performance correction
• Dual-input connectors (Analog, AES, Dante) for versatile signal routing
• Internal DSP with Adaptive Performance for automatic adjustment of performance parameters based on user-defined coverage
• Exterior-grade Baltic birch plywood with wear-resistant RoadCoat textured black finish
• Rotational symmetry and modular design for flexible array configurations and 3D coverage
• Dimensions: 24 x 31.5 x 31.5 inches, Weight: 210 lbs
• Input connectors: XLR, AES, Dante, and Neutrik powerCON TRUE1 for reliable signal and power connections
• Power Consumption: Idle: 200W, Peak Draw: 1000W
• Software: Resolution 2 for easy configuration and performance optimization

Specifications

Configuration

• Subsystem:
  • 2 x VLF 18-inch cone, 4-inch voice coil, Offset Aperture, Vented
• Operating Mode:
  • Dual-amp, 2 x VLF, DSP w/ Adaptive Performance

Performance

• Operating Range: 22 Hz to 160 Hz
• Nominal Beamwidth:
  • Horizontal: Adaptive
  • Vertical: Adaptive
• Calculated Output Limit (SPL) Unadapted:
  • LF1/LF2 (whole space): Average: 130 dB, Peak: 136 dB
  • (half space): Average: 136 dB, Peak: 142 dB
• Calculated Output Limit (SPL) Maximum SPL:
  • (whole space): Average: 131 dB, Peak: 137 dB
  • (half space): Average: 137 dB, Peak: 143 dB
• Calculated Output Limit (SPL) Maximum Rejection:
  • (whole space): Average: 127 dB, Peak: 133 dB
  • (half space): Average: 133 dB, Peak: 139 dB

Electrical Performance

• Input:
  • Type: Electronically Balanced
  • Max Input Level: 25 dBu
  • Impedance: 20 kOhm (balanced)
  • Wiring: XLRF, Pin 1 chassis, pin 2 +, pin 3 - (Separate loop-thru XLRM for analog signal only)
  • Input Selection: Analog, AES (Ch 1/2), Dante
• Amplifiers & Processing:
  • Type: VLF, Modified Class D
  • Maximum Output: 2 x 1,700W
  • Driver Protection: Integral DSP limiting
• AC Mains (Nominal):
  • Connector: Neutrikx powerCON TRUE1
  • Input: 100V to 240V
  • Frequency: 50 Hz to 60 Hz
• Power Consumption:
  • Idle: 200W
  • Peak Draw: 1000W
• Control/Communications:
  • Connections: USB A & B, 2x Neutrikx etherCON
  • Protocols: USB, Ethernet/Dante
  • Software: Resolution 2 (available at eaw.com)
  • Indicators: Test, Function, Input (Network, Analog, AES/EBU), Network Status
  • User Controls: Test, Function

Enclosure

• Material: Exterior-grade Baltic birch plywood with wear-resistant textured RoadCoat; powder-coated cast aluminum handles
• Grille: Powder-coated perforated Aluminum
• Dimensions: 24 x 31.5 x 31.5 inches
• Weight: 210 lbs