One Systems 312.HC - 1200W 3 x 12-inch Passive 2-Way IP56-Rated Installation Loudspeaker with 70/100V Transformer in White Finish

The One Systems 312.HC is an advanced passive 2-way loudspeaker system engineered to deliver very high output levels and exceptional vocal intelligibility in a wide range of environments. Featuring a robust 3-element shaded vertical array design, this loudspeaker is adept at producing high sound pressure levels while maintaining clarity and accuracy, making it perfect for both indoor and outdoor applications. Built with marine-grade 316 stainless steel for all structural and rigging points, the 312.HC is designed to withstand the rigors of oceanfront and cruise ship installations, as well as general direct weather applications. The non-structural metal components are coated with a newly developed marine-grade powder coat over 304-grade stainless steel, ensuring long-lasting performance in harsh conditions.

Engineered for versatility, the 312.HC can be used in direct weather outdoor installations or indoor environments that demand high vocal intelligibility and fidelity. This loudspeaker is designed to provide not only full-range sound quality but also superior vocal reproduction, ensuring clear communication even in challenging acoustic settings. For applications requiring extended bandwidth, the 312.HC can be coupled with the 118HSB subwoofer, achieving full bandwidth operation at very high sound pressure levels while maintaining a compact footprint.

The system consists of three 12-inch direct radiator transducers arranged in a shaded array configuration. The top 12-inch element includes a coaxial system that integrates a large-format compression driver, delivering full bandwidth response and excellent vertical control. This innovative design allows the 312.HC to maintain vertical beam width control below 200 Hz while sustaining a 60-degree vertical radiation angle below 300 Hz. Such features make it particularly suitable for reverberant indoor spaces, including gymnasiums and large arenas, as well as outdoor venues where vertical control is crucial for consistent audio delivery across the vocal range.

Unlike many traditional high-level vocal systems that use nested horns, which can lead to poor intelligibility and a characteristic "honky" sound, the One Systems 312.HC avoids these issues through its thoughtfully designed 3-element direct radiator system. This approach eliminates the colorations commonly found in horn-based systems, ensuring that vocal fundamentals are reproduced with clarity. The enclosure is constructed from a copolymer material optimized for high UV exposure, guaranteeing durability and longevity in extreme conditions. The grille features a three-layer "rain shield" design that minimizes direct rain exposure to the transducers, enhancing reliability and performance.

The enclosure and grille design are rated to IEC 529 IP 45 for ingress protection, guarding against solid object penetration and water jets from any direction. With the installation of the vent plugs, the system is rated IP 56, providing further protection for outdoor applications. The input section includes a 4-position barrier strip, and a weather cover is provided with an integral gland nut connector, rated NEMA 6P (IP 68), to ensure secure connections in outdoor environments. The gland nut accommodates cable diameters ranging from 7mm to 12mm, allowing compatibility with most 2-conductor AWG 12 cable assemblies.

The 312.HC features 19 M10 rigging points for flexible installation options, allowing for suspension using the PM4/M pole mount system or the PT76/M pan and tilt system for flat surface mounting. An optional U-bracket, the 312HC-U/M, is also available for added versatility. With a frequency response of 75Hz to 16kHz and passive crossover frequencies set at 400Hz and 1800Hz, the One Systems 312.HC ensures clear and powerful sound reproduction. The system sensitivity is rated at 99 dB (1 Watt / 1 Meter), and it is capable of handling up to 1200 watts continuous, 2400 watts program, and 4800 watts peak power, making it an outstanding choice for various entertainment and sports venues. Weighing 93.5 lbs and measuring 43.3 x 14.5 x 16.3 inches, the One Systems 312.HC combines powerful performance with robust construction, delivering a highly effective audio solution for demanding applications.

Features

• 3-element 12-inch shaded vertical array designed for very high-output sound reproduction and broad bandwidth.
• Marine-grade (316) stainless steel rigging points ensure durability in harsh environments.
• Very high SPL extended bandwidth response ideal for demanding applications.
• IEC 529 IP 45 ingress protection rating, with IP 56 rating when vent plugs are installed.
• Optimized for high intelligibility and vocal articulation, suitable for both indoor and outdoor use.
• Multiple M10 rigging points for flexible installation options, including suspension and flat surface mounting.
• Weather performance features include a three-layer "rain shield" grille and a weather cover with a waterproof gland nut.
• Frequency response ranging from 75Hz to 16kHz for a wide audio range.
• 60-degree conical coverage pattern for effective sound dispersion in large spaces.
• Passive crossover frequencies set at 400Hz and 1800Hz for optimal sound quality.
• System sensitivity of 99 dB (1 Watt / 1 Meter) for efficient sound reproduction.
• Power handling capabilities of 1200 watts continuous, 2400 watts program, and 4800 watts peak.
• Nominal impedance of 4-ohms for compatibility with various audio systems.
• Lightweight design at 93.5 lbs and compact dimensions of 43.3 x 14.5 x 16.3 inches for easy installation.

Specifications

• Frequency Response: 75Hz - 16kHz
• Coverage Pattern: 60 degrees conical
• Passive Crossover Frequency: 400HZ and1800 Hz (Shaded Vertical Array)
• Inputs: 4-position barrier
• System Sensitivity (1 Watt / 1 Meter): 99dB
• Power Handling: 1200 watts Continuous, 2400 watts Program, 4800 watts Peak
• Nominal Impedance: 4-ohms
• Low Frequency: ONE SYSTEMS 12I/O-1 V4 and 12I/O-2 V4 ONE SYSTEMS 12CXVII
• High Frequency: Modified large format compression driver
• Suspension/Mounting Points: 19 each M10
• Weather Performance: IEC 529 IP 45
• Net Weight: 93.5 lbs
• Dimensions: 43.3 x 14.5 x 16.3 inches