Overview
The half cardioid Boundary layer e901 is the optimal microphone for bass drum and grand piano. It is highly robust and step-resistant. It features an integrated preamp and skid-resistant design.

Features:
Frequency response optimized for bass drum 
No stand needed -- just lay it on a towel or pillow 
Standard XLR plug: no adaptor cable needed 
Capable of handling extremely high SPLs