Phelps AMP Diaphragm Elk Call

Each call in the pack is designed with slightly different tension and latex thickness, which changes the pitch and tone. This variety allows you to experiment with different sounds—from higher-pitched cow chirps to deeper, more aggressive bull bugles—to see which one best fits your natural vocal range.

Yes, single-reed diaphragms require less air pressure to break over and produce sound. This makes them significantly more forgiving for beginners who are still learning how to control their breath and tongue placement.

These calls are constructed using high-quality latex. It is the industry standard for elk calls because it offers the necessary elasticity to create realistic, vibrating sounds while remaining durable enough for repeated use.

Diaphragm calls are consumable items. While the latex is durable, it will eventually lose its elasticity or tear with heavy use. With proper care—rinsing them after use and storing them in a cool, dry place—they should last through a full hunting season.

These calls are designed to be ready to use right out of the package. While some experienced callers trim their diaphragms to fit their specific palate shape, we recommend using them as-is first to get a feel for the intended sound profile.