Environmental Audio System

The Environmental Audio System (EAS) was created to provide for better hearing when wearing a costume helmet.  The EAS is relatively modular and supports a number of different configuration options, providing for the flexability to use with almost any costume.

The EAS consists of four basic components.. the amplification board, microphones, speakers, and battery holder.  As I am using 2 microphones, 2 speakers and a stereo amplification system, you hear stereo sound.  The kit comes fully assembled, tested and operates on just 3 AA batteries for hours and hours.  The standard kit comes complete with 3/8″ diameter microphones, and 2″ diameter speakers, however I offer a couple of options in both microphone size, and speaker size.  The amplifier comes complete with large on-off button (easy to flick with a gloved finger) large volume control knob, and standard headphone jack.

Kit Options

The standard kit comes with the EAS amplification board, battery holder, 3/8″ (1cm) diameter microphones, and 2-2.5″ regular speakers.  If you feel that the standard mics and speakers are too large for your installation, smaller options are available.

Microphones – I offer two sizes of microphones, regular and mini.  Small microphones are the standard ones included with the kit, and produce the best quality sound.  Although they are only 3/8″ in diameter and 1/2″ tall, some helmets are so tight fitting that you may not have the 1/2″ to spare.  When this is the case, you will want the mini microphones.  The mini microphones are only 1/4″ in diameter, and 1/8″ high.  Tiny, but not as pleasing a sound as their larger counterparts.


Speakers – I am using 2 2″ – 2.5″ speakers which fit perfectly in the ear area of Kev’s S4 back-off helmets, and I’m sure are small enough to fit easily in any helmet.  For those who have absolutely no spare space inside their helmets, super-thin speakers (pictured) can be supplied in place of the standard speakers.  In addition to using speakers, the EAS also has a standard headphone jack to allow you to use your own pair of earbuds in place of speakers if you prefer.  ** In working with a few of my troopmates, they actually prefer using earbuds as opposed to speakers.  Not only does it mean less installation and “stuff” in the helmet, but also provides all-around better sound and volume.

I include enough wire on each component (battery back, mics, speakers) to place them anywhere inside a helmet, and am happy to make custom lengths for you if you’d like to reduce the amount of excess wire in your lid.  In addition, if you require a custom setup (ie. amplification board placed in a pocket, mics located elsewhere on your costume), please let me know and we’ll work together to make it happen.


Pricing and Ordering

EAS Kit with 2 speakers and 2 microphones: $100 + 17 shipping (in Canada and USA)

When ordering, please specify whether you would like the small 1cm mics, or mini .5cm mics.  Additionally, please specify whether you would like the normal, or super-thin speakers.

To purchase or for inquiries, please contact me at shawn@activearmor.ca


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