Cabinet speakers

Triple 12" 2-way platinum outdoor speaker - Black One Systems

Product Code: OS-312.HC-BLK

One System
RRP $5,599.00
Unit of Measure


Technical Specifications
Brands One Systems
Series Platinum Hybrid Series
Size 2 x 12"
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312.HC Platinum Hybrid Series Loudspeakers

The 312.HC is a 3-element vertical array that delivers very high output vocal material and wide-range music reproduction with superior intelligibility. Thanks to its clever design, the 312.HC’s array maintains its 70-degree vertical radiation pattern to below 300 Hz, thereby making its performance perfect for long-throw outdoor applications as well as for reverberant indoor spaces such as arenas and houses of worship. The 312.HC's 1,200 watts continuous power handling and its input sensitivity provides high output capability. The 312.HC’s tough injection-molded enclosure is optimized for high UV exposure and long life in harsh weather environments. Everything from the 3-layer “rain shield” stainless steel grille, the enclosure’s material, the weather covered inputs and its multiple 316 marine-grade stainless steel suspension points are capable of handling direct weather exposure for years while providing phenomenal performance. If your application requires ultra high output, long throw, full-bandwidth response with incredible pattern control, the 312.HC is a unique solution.

Mounting options sold separately


  • 3-Element 12” Shaded Vertical Array
  • Marine-grade (316) stainless steel rigging points
  • Very High SPL extended bandwidth response
  • IEC 529 IP 45 (IP 56 with vent plugs)
  • Optimized for high-intelligibility and vocal articulation
  • Multiple M10 rigging points
  • Pan and Tilt (PT76/M), Pole Mount (PM4/M) rigging brackets
  • 312HC-U/M U-bracket available


  • 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*
    • * NOTE: All system power handling rating are amplifier headroom dependent
  • Nominal Impedance: 4-ohms
  • Low Frequency:
    • ONE SYSTEMS 12I/O-1 V4 and 12I/O-2 V4
  • High Frequency: Modified large format compression driver
  • EASE 4.0 data:
  • Suspension/Mounting Points: 19 each M10
  • Weather Performance: IEC 529 IP 45
  • Dimensions (H x W x D): 1100 mm x 368 mm x 414 mm (43.3 in x 14.5 in x 16.3 in)
  • Net Weight: 42.2 kg (93.5 lb.)

Product Documents

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We ship using Australia Post and Startrack Express. We deliver Australia-wide to residential, business and PO box addresses.

Shipping is free for all orders over $275 including GST (effective 1 March 2018). There is a $22 (including GST) shipping and handling charge for all orders under $275 including GST. 


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Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

All items purchased from Amber Technology will be covered under warranty. The duration and terms of this warranty are specified by the manufacturer unless otherwise stated. Warranty information is available on the individual product listings on this site.

Refurbished items will include a 12 month warranty unless otherwise stated.

Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us. 

Amber Technology maintains a nation-wide network of carefully selected Authorised Service Agents to ensure that you are never far from convenient, expert technical and service support. If your item develops a problem and requires servicing under warranty, please contact your local Authorised Service Agent.

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The availability of stock is communicated via the indicator of each product listing page. "Available" means that reasonable stock is in our warehouse, ready for immediate shipment. "Limited Stock" means that we have only a small number of items in stock. "Out of Stock" means this item is currently unavailable for immediate shipment - orders placed for ‘Out of Stock’ items will be fulfilled as soon as replacement stock arrives.

"Special Order” items are products that are not generally kept in stock in Australia. Lead times for Special Order items vary depending on country of origin, manufacturer’s stock levels, factory production schedules and/or incoming shipment transit times. Please contact us for an estimate as to the likely lead time.

Refurbished items

If refurbished stock is available, this will be shown on the summary page for the product. If a product listing only allows you to choose refurbished stock, we are not holding new stock and we can no longer obtain new stock.

Refurbished items are always in perfect working order and will include all accessories. Refurbished items are may

  • have a damaged carton
  • have been used for demonstrations
  • have been repaired
  • have minor imperfections that do not impact performance.

Refurbished items include a 12-Month warranty unless otherwise stated.

Technical Support

Please visit the Get Support page to find a service agent, log a service ticket, or ask a technical question about your product.


Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us.  


  inc GST
RRP $779.00
  inc GST
RRP $199.00
  inc GST
RRP $1,349.00
  inc GST
RRP $1,349.00

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