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tortion and built to resist high temperatures and
humidity, the microphone will give excellent re-
sults in a wide range of applications.
• Polar pattern selector: Selector 1 on the
microphone front (refer to fig. 1) sets the micro-
phone polar pattern to cardioid, omnidirection-
al, or figure eight.
• Switchable preattenuation pad: Selector 2
on the microphone rear (refer to fig. 2) lets you
increase the headroom by 20 dB for distortion-
free close-in recording. The preattenuation pad
prevents the microphone's output level, partic-
ularly at low frequencies, from overloading the
miniature transformers used in many mixer
input stages, etc.
• Bass cut filter: Selector 3 on the microphone
rear (refer to fig. 2) further reduces low-end
distortion caused by footfall or wind noise, etc.
The filter also minimizes the proximity effect
that close-in miking from less than 4 inches
Fig. 1: Polar pattern selector (1) on
PERCEPTION 420
front.
1
Fig. 2: Preattenuation (2) and bass cut (3) switch-
es on
PERCEPTION 420
rear.
3 2
AKG PERCEPTION 420