Boo Box FlexMax (16 output, Amplified MP3 Audio Player)

Please note – Due to OEM restrictions – Fright Idea controllers can only be purchased in conjunction with new DC Prop orders or verifiable previous purchases. If you would like to order controllers for non-dc items, please purchase directly from

The BooBox Flex max is the Cadillac of prop/show controllers and includes:
– MP3 audio / 50 Watt Amplifier
– 16 High current solid-state outputs
– 3 outputs can dim LEDs or small bulbs
– 8 trigger inputs
– 16MB internal memory
– DMX lighting and RC servo output
– 12V 5Amp Power Supply Included
– SD Card Included


2 in stock (can be backordered)

Sensor Options


SKU: FI216-16 Category: Tags: , , , , , ,


The BooBox Flex has seen its most significant upgrade since it took the market by storm in 2014. An upgraded processor, pluggable terminal blocks, high-current outputs, and the ability to dim LED lights make the Flex an even better value. No other controller packs in this many features at this price. It’s no wonder that it’s the controller of choice for the leading prop manufacturers in the industry.


The Flex is easily programmed using our free Director software. Create even the most complex shows with just your mouse and keyboard. Director will save your show to an SD card so it can be uploaded to the BooBox.

If you’d like to program in real-time, the Director Connect dongle will allow you to connect your PC to the BooBox so Director can animate it live.

If computers aren’t your friend, or you want the best of both worlds, use our legendary ScareMaster real-time programmer. With the ScareMaster you can animate complex scenes in real-time without being tethered to a computer. Entire shows can be saved to the ScareMaster’s SD card for backup or cloning.

Flexible Storage

The Flex can use either its internal memory or an SD card for animation and MP3 storage. The internal 4MB flash chip has enough memory for most props. For more demanding props, pop in an SD card and it’ll use that instead.

Flexible Outputs

The Flex can be purchased in 2, 4, or 8 output models. All outputs are solid-state so they can control 12 or 24VDC loads without wear and tear. Each output is protected from shorts and overloads and capable of handling 1.5 amps of current. To control high voltage or current loads a relay must be used.

Output Accessories

If you want to control more than one or two AC or high-current loads, check out our relay boards that start working as soon as you plug them into the BooBox’s expansion port.

Please note that these output accessories do not add more outputs to a BooBox, they simply offer a convenient way to control different types of loads. For example, output 1 on the expansion port will turn on when output 1 on the BooBox is activated. You can connect both of the outputs to different devices, as long as you don’t mind them both turning on at the same time.

Two Dimmable Outputs

On the 8 output model, the last two outputs can optionally be used to dim LEDs or small bulbs. Each output can handle 1.5 amps – that’s a lot of LEDs! Create any lighting effect you want using the sliders on our ScareMaster or the virtual sliders in Director. When driving LEDs with these outputs you’ll need to run the Flex at 12 volts.


No need to waste valuable outputs triggering an external audio device. The Flex’s built-in MP3 player lets you playback up to 8 different CD quality audio tracks for each scene. It can also play unlimited ambient audio files, resume the ambient audio after a triggered scene, and fade audio between scenes.

Want the ambient sounds a little quieter than the scare sounds? The Flex has independent volume controls for each channel and scene. This allows you to quickly adjust the volume on a scene by scene basis without any sound editing.


Trigger Inputs

The Flex has two optically-isolated trigger inputs. Inputs can be used to trigger scenes, different length shows for busy nights, or even as emergency stops. Pre and post-delays are also available for each trigger, as well as a timer mode to set the prop off on a recurring schedule.

The most common triggers are PIR motions sensors, beam sensors, hand triggers, and pressure mats.



Power Supply

The BooBox Flex can be powered by a 12 or 24 volt DC power supply. The voltage you choose to power your Flex is the voltage it will send out of its solid-state outputs.

For more information on selecting a power supply please read here.

Ambient and Scare Modes

The Ambient mode is used to build anticipation of the scare. While the Flex is not scaring, it is by default in ambient mode. Program this mode with what you want the patrons to see and hear as they approach the scare – a little foreshadowing of the terror to come.

Multiple ambient scenes can be programmed and the Flex will automatically cycle through them after each scare.

DMX Lighting

The Flex with DMX Output can output DMX to control popular stage lighting, strobes, and foggers. The Flex makes it easy to control all of them while keeping them in sync with your prop’s animation and sound. Adding DMX devices is as simple as linking them using DMX cables, which means they don’t use up any of your solid-state outputs.

The Flex with DMX Output can handle up to 128 DMX channels. The DMX Output option, as well as support for up to 256 and 512 DMX channels, can be added in place after purchase using the Director software.

DMX Capture

The Flex can also be used to capture DMX data from another source. This feature can be used to import animation from another software package or device. The capture can then be used as one of the scenes in your show.

Downloads and Documentation


Quick Start Guide      Download


Director Software      Download

Additional information

Weight 3 lbs
Dimensions 4 × 4 × 4 in


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