The Sennheiser e901 is a perfect condenser mic for bass drum and works exceptionally well for a grand piano. Highly robust and step-resistant, it benefits from an integrated preamp. It has a half cardioid, half boundary design. Also having skid-resistant underside surface.
Frequency response optimized for kick drum
Very fast attack
Integrated preamp and gold-plated standard XLR plug, no need for special adapter cable
No microphone stand needed for kick drum applications
Handles very high sound pressure levels
Slip-free, dampening rubber pad underneath
Optimized for bass drum