ELCajon EC-10: The cajon’s mic sound (the sound produced inside the box) is too shrill; what can I do? May 20, 2025 08:45 Updated Follow You might be able to improve the situation by placing a sponge or other acoustically absorptive material inside the cajon. Related articles ELCajon EC-10: Can the clip mic be purchased separately? ELCajon EC-10: It’s hard to play each sound of high or low; what should I do?