4
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