Meinl Cajon Headliner Series is constructed with a wooden (Siam Oak) body and various premium wooden frontplates. In this video, the frontplate is made from hand-selected Mahogany wood.
On the bottom of the drum, there are four rubber foot stoppers for dependable stability during performances.
Inside the drum there are adjustable wires to manage your buzz or "sizzle effect". You'll also find an Allen wrench tucked in the beam of the drum that runs along the middle of the backside of the playing surface. You can pop the Allen wrench out to Adjust your drum, then put it back for safe keeping during play and transit. The placement for the Allen wrench is such that it will not disrupt the sound of your Meinl cajon.
Once you have the Allen wrench out, play the drum a little to sample the sound. You'll then have a sense of the adjustments that need to be made to achieve optimal tones.
Tune your cajon at the bottom of the drum. Flip it over and use the Allen wrench to tighten or loosen the screws between the two front rubber stoppers. Just a quarter turn is all you need to make a noticeable difference, so take it slow and test the sound between each adjustment.
Once you are done, place the drum back on the floor and play some patterns. You might find that the tuning is good, but the slaps are not quite where you want them.
To get more or less slap our of the drum, you will use a screwdriver to tighten or loosen the top edge of the frontplate. The more space you create between the frontplate and the resonating body, the more response you'll get.
When working with the frontplate adjustments, always loosen the outside screws first. Do not adjust the middle screw.