BL8 Boundary Microphone from sE Electronics sports a half-cardioid, 3-micron true condenser diaphragm for exceptional sensitivity in the low-frequency range, making it ideal for kick drum miking. With onboard controls for two different low-cut frequencies (80 or 160 Hz), two different attenuation levels (-10 or -20 dB), and two different EQ voicings (Classic or Modern), the BL8 is versatile indeed, deftly handling ambient room miking, pianos, and more with exceptional clarity. 
The ideal studio kick drum tone is often different than preferences in a live sound environment. Similar to the award-winning kick-drum mic, the V KICK, the BL8 offers Classic and Modern character voicings.
 The capsule inside the BL8 can be swapped for an alternative, such as the sE8 omnidirectional capsule, to allow for an even greater range of applications. Simply turn the screw at the center of the mic's grille until its loose, remove the capsule retainer screw, and replace.
Using screws, the BL8 can be mounted to a surface, wall, ceiling, or the lid of a grand piano. Simply open the microphone as you would if you were changing the capsule.
 
Specs
Components
CapsuleHand-crafted small-diaphragm true-condenser capsule
Power
Powering48 Volts according to IEC 61938
Electrical impedance60 Ohms
Current consumption5.0 mA
Connectivity3-pin male XLR connector
Sound
Polar patternsHalf-cardioid
Frequency range20 – 20,000 Hz
Sensitivity25 mV/Pa (-32 dBV)
Max. SPL (0.5% THD)143 / 153 / 163 dB SPL (0/10/20 dB attenuation pad)
Equivalent noise level14 dB(A)
Dynamic range129 / 139 / 149 dB (0/10/20 dB attenuation pad)
Signal-to-noise ratio80 dB
Low-cut filter80 / 160 Hz, 6 dB/oct, switchable
Attenuation pad10 / 20 dB, switchable
Recommended load impedance>1k Ohms
Dimensions
Mic length139 mm (5.47 in.)
Mic Width95 mm (3.74 in.)
Mic Height28.5 mm (1.12 in.)
Mic weight538 g (18.98 oz.)
What's in the box
BL8 microphone
Pouch