DPA APE50RS Acoustic Pressure Equalizer, 50 mm Ball for
4006A and 4006C
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Product Code:
APE50RS
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Overview:
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The APE50 is a �50 mm sphere shaped Acoustic
Pressure Equalizer, designed for use with the Reference Standard Microphone
4006A or the ST4006A stereo kit. For use with the compact 4006C, the microphone
must be either hung or placed in the clip with an XLR connector plugged in.
It offers a stronger on-axis boost and off-axis attenuation than the APE30 and
APE40. 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 APE50 is particular useful for making recordings
under reverberant conditions.
This accessory substitutes the former L50B, suitable for 4003, 4006, 4006-TL and
their stereo kits. The L50B cannot be used with the modular series 4006A or
4006C but APE50RS is backwards compatible with 4003, 4006 and 4006-TL.
More on acoustic modification
The Acoustic Pressure Equalizers � APEs � are passive acoustic processors
functioning as both spatial and spectral modifiers. They use diffractions on the
surface to modify the sound field near the microphone diaphragm. This technique
is only possible on omnidirectional pressure microphones.
Two primary changes occur:
1. An upper-midrange/high frequency boost (without changing the low end) due to
the pressure build-up at certain frequencies depending on the element�s size.
2. More directionality at higher frequencies (focus).
A presence (upper-midrange) lift is often desirable in rhythmical genres, to
make a voice or an instrument cut through a mix or simply to make it more
intelligible or well defined. For symphonic music, the frequency response of
certain legendary vintage types of microphones can be obtained using one of the
APEs. However, you will achieve a much higher degree of naturalness and detail
when using a precision handcrafted 4006A.
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