TechPowerUp published a review on the Campfire Audio Mammoth In-Ear Monitors
A quote from the article:
Campfire Audio opens up a can of fun with the new Mammoth in-ear monitors. It's bold, it's brash, and it won't apologize for it! With a hybrid driver setup utilizing some custom drivers that aim to provide an energetic W-shaped tuning, we test its technical prowess objectively and subjectively today.Campfire Audio Mammoth In-Ear Monitors Review