The L50B is a diameter50mm sphere shaped Acoustic Pressure
Equaliser, designed for use with the Standard Microphone 4003
and 4006 or the A-B Stereo
Kits 3503 and 3506.
It offers a stronger on-axis boost and off-axis attenuation
than the L30B and L40B. Its larger dimensions accentuate the on-axis boost at lower frequencies and allow off-axis
sources to be strongly attenuated above 1 kHz
. This will give your recordings a more intense sensation of source clarity and presence, a marked increase in brightness, and extend the effective reach of your microphones.
You will also find that the L50B is particular useful for making recordings under reverberant conditions.