Features
- Combines the acoustic response of a traditional bell and diaphragm into a convenient one-sided chest piece
- New gasketed diaphragm enables the scope to achieve multi-frequency response simply by altering pressure
- Light pressure produces bell-type low frequency response
- Firm pressure will produce diaphragm-type high frequency performance
- New ovoid-shaped chest piece improves ergonomics
- Chest piece made from lightweight zinc alloy plated with an attractive satin stainless finish








