72M with Onboard Cues - $1,375.99

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The 'Add to Cart' button is disabled because you have MJG Initiators in your cart. They require their own shipping due to hazmat regulations. To purchase other items, either complete the MJG Initiators order first or remove them from your cart. Learn more.

The COBRA 72M is a compact and rugged 72-cue firing module that functions universally with the 18R and 18R2 Controller.

Each firing module has four independent banks (A, B, C, & D) that can be set to one of 100 unique channels (200 on firmware 6.0.0 or higher) by pressing the + and - buttons on the module. For example, bank A can be set to channel 1, bank B can be set to channel 2, bank C can be set to channel 3, and bank D can be set to channel 4. Each bank has built-in, onboard speaker terminal cues, as well as optional support for external 18 and 36 cue slats.

Using the 18R or 18R2 Controller channel controls, you can fire any banks on the same channel. You can fire unlimited modules at the exact same time by setting them to the same channel.While external slats will not add additional unique cues, they will allow you to fire cues connected to the slat in parallel at the same time as your onboard cues.

The 72M also boasts a backlit LCD screen, standard built-in rechargeable LiPo battery, support for replaceable 9V batteries, support for 12-24V external power. The large armored case has an externally mounted antenna and routed down side-edges that allow wires to be extended outside the unit while snapping the lid shut.

Using Pro-Adapt Plate technology, the 72M offers a truly connection agnostic design. The 72M simply plugs securely into the Large Pro-Adapt Plate. The same 72M can be used with any of the COBRA Pro-Adapt Plates.

This version comes built in a protective case that features onboard cues as well as external slat support. For more information on onboard cues, please watch our Onboard Cues video.


Features
Tech Specs
What's Included

Multi-Channel

The 72M comes with four banks (A, B, C, & D) that can be channeled independently of each other. Simply press CH+ or CH- on the 72M to set a bank to a channel between 00 and 99 (00 and 199 on firmware 6.0.0 or higher). Press the 'Change Bank' button to toggle between banks and use the CH+ or CH- change the channel for the selected bank. Banks can be set to any channel in any order. For example, bank A can be set to channel 2, bank B can be set to channel 3, bank C can be set to channel 4, and bank D can be set to channel 5. Then, by changing the channel on the 18R or 18R2 Controller, you can fire any bank set to the same channel.

Power Conservation

The 72M comes standard with a rechargeable 14.8v, 900mAh battery. It can also support the use of three 9V (PP3) batteries. One of the 9V batteries is used exclusively to power the system operations, while the other two are used for firing cues.

The 72M also has a power conserving sleep mode. When powering off the 18R or 18R2 Controller, the 72M will automatically fall asleep and conserve power for up to 30 hours. This allows you to place and arm your modules into position hours before the show begins. Then, when turning on your 18R or 18R2 Controller remote, the module wakes up and is ready to fire.

Technology

At COBRA, we believe safety and reliability are the most important features of any firing system. With that in mind, every COBRA system incorporates the below collection of technological and usability based features. This ensures safe and reliable functionality every time you use the system.

  • IEEE® Unique Network MAC Addresses - Every COBRA remote contains a fully unique network MAC address. This address is programmed into the unit at the time of production and contains 16 x 0-F base-16 values. For example, 00.1C.2C.00.00.C0.00.01.

    By syncing a firing module to a remote, the remote's network MAC address is saved and remembered on the firing module, even after power-on and power-off. Once saved, the firing module will ONLY respond to the remote containing this unique MAC address. This prevents any other remotes from firing your system. In addition, any time a firing module is synced to a different remote, the previous MAC address is overwritten, thereby ensuring the firing module only responds to the last remote to which it was synced.

  • 2.4GHz transceiver modules - The COBRA 72M uses a 2.4GHz transceiver module manufactured by Synapse, a US company that both develops and manufactures its SNAP line of IEEE 802.15.4 radio modules and transceiver ICs.

    The same transceiver and software development platform is used successfully not only by COBRA, but also in a variety of safety-critical industrial wireless applications, including medical monitoring systems and airport lighting controls.

  • Redundant, solid-state, self-testing MOSFETs - The COBRA 72M uses redundant solid-state firing FETs on both the high and low side of each firing cue. This ensures that no power is supplied to the cue unless the firing module is both armed, in fire mode and is actively firing a cue. The redundant FETs provide protection against unintentional electro-static discharge (ESD) and serve to automatically test for damaged or shorted FETs upon system start-up. If detected, the system will automatically disable itself and will not operate.

  • NFPA compliant user-design - The COBRA system adheres to National Fire Protection Association (NFPA) chapter 9.2 requirements including a key-operated switch, multiple actions to arm and fire, and minimum current requirements when performing continuity tests.

  • Contains FCC, CE and IC certified RF Module - The 72M contains the Synpase 802.15.4 2.4GHz RF transceiver module.

Construction

The 72M is enclosed in 2.5mm thick high-strength ABS plastic and shielded by a highly thermal and impact resistant black armored plating on the top side. The clear design minimizes all entry of air, moisture, and dust into the electronic housing by eliminating the need for cut-outs and micro-gaps in the enclosure. Polyurethane-coated fire-retardant silicon keypads have custom walls that push up against the top-enclosure to protect against moisture and dust.

Expandable Power Options

  • Easy to Charge - A charge port and charge indicator exists on the top of the module for simple charging. If you use armored cases, the faceplate supports charging while the 72M is still in the armored case. Use our single charger or charge up to 5 modules at once with our 5-module charger option.

  • External 12-24V DC Input - Rugged external binding posts support external 12 and 24V DC input. For permanent installations, we offer a custom 110/220V A/C to 24V D/C converter. Use the internal LiPo battery pack together with the A/C input to act as a real-time power backup.

  • Increased Amperage - Replaceable 9V batteries produce a peak current of 3 Amps. Using the LiPo battery pack, this increases to 6 Amps. Using the external power input, we can produce up to 9 Amps of peak current. This will support firing up to 5 and 16 e-match / clip-on igniters respectively, in addition to also supporting the firing of high current devices such as confetti cannons, flame projectors, and cryo jets.

  • Cold Weather Performance - Fire extreme cold shows with confidence with improved cold weather performance down to -20F / -29C.

  • Dual Protection Circuits for LiPo Safety - COBRA incorporates dual overcharge, undercharge, and overvoltage protection circuits. The first protection circuit is built into the 72M motherboard. The second protection circuit is built into the battery itself. This means if one of the protection circuits fails, the other acts as a backup. While we don't expect any failures, feel confident that we have designed both the battery and charge circuitry with the highest level of safety and protection in mind.

Physical Construction
Dimensions  Case Dimensions - 8.24” x 6.47” x 2.57” (20.92cm x 16.43cm x 6.5cm)
Module Dimensions - 20.1” x 15.6” x 7.6” (51.04cm x 39.62cm x 19.30cm)
Keypad Backlit fire-retardant silicone
Enclosure Material Impact resistant and fire-retardant ABS
Power Options
Type Active Sleep
3 x 9V 8 hrs. 20 hrs.
14.8V LiPo 18 hrs. 36 hrs.
12-24V External Input No Limit No Limit
Radio
Antenna +5 dBm 8.5" Omnidirectional Rubber Duck Antenna
Radio Compliance FCC CE, IC certified (ID: U90-SM220)
Frequency 2.4 GHz
Range 500m (1,650 ft) direct line of sight range w/ built-in link quality detection
Range with MESH Technology (5.0.0 or higher firmware) +450m (1,500 ft) per device (up to a total of 10 hops per device)
Encryption IEEE Mac Address / Encrypted Data
Cues / Firing
Number of Channels 200 (firmware version 6.0 or higher)
100 (firmware version 5.1 or lower)
Number of Cues 72
Firing Accuracy 1/100th second
Max # of Unique Cues 72
Onboard Connectors Various
18S Mini Series & 18S Mini Parallel
18S Series & 18S Parallel
36S Mini Series & 36S Mini Parallel (coming soon!)
36S Series & 36S Parallel (coming soon!)
36S Armored Slat (coming soon!)

The 72M has three different power options including 9V replaceable batteries, an internal 14.8V rechargeable LiPo battery pack, and the option for external 12-24V power input. You can view the maximum amount of e-match or clip-on igniters you can fire based on your specific configuration below.

Max Firing - Clip-On Igniters
Energizer 9V 14.8V LiPo External 12-24V
Clip-On Igniters in Parallel 2 4 5
Max Firing - MJG Initiators
Energizer 9V 14.8V LiPo External 12-24V*
Parallel 8 9 16
Series 5 9 12

*Assumes minimum 10A peak burst current

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