AKG P420 - High-Performance Condenser Microphone Manual

Please read the user instructions carefully before using the unit and keep them in a safe place so that you can refer to them in the future at any time. We wish you a lot of fun and success!

Contents

• Microphone
• Spider shock mount
• Carrying case

Check that the packaging contains all of the items listed for your system. If anything is missing, please contact your AKG dealer.

Optional Accessories

• PF80 pop filter
• ST305 table stand
• W4000 external windscreen

Short description

The P420 is a heavy-duty, rugged true condenser microphone built to the same strict quality standards as all other AKG products. Designed on the basis of AKG's decades of knowhow and feedback from sound engineers around the world using AKG studio microphones every day, this general-purpose 1" dual large-diaphragm microphone brings AKG studio quality to the worlds of recording, live sound, and broadcasting.

Features

• Selectable polar patterns: The microphone's transducer uses a dual diaphragm. This sophisticated technology allows you to select the optimum polar pattern (cardioid, omnidirectional, or figure eight) for every application.
• Gold-sputtered diaphragm: The diaphragm is made of a plastic foil that is gold-sputtered on one side only to prevent shorting to the back electrode even at extremely high sound pressure levels.
• All-metal body: The all-metal body adds to the rejection of RF interference so you can use the microphone near transmitter stations and along with wireless microphones or other communications equipment. The extremely rugged, heavy body and sturdy front grill protect the microphone from damage from tough handling on stage.
• High headroom, minimum distortion: Capable of handling sound pressure levels up to 155 dB without introducing perceptible distortion and built to resist high temperatures and humidity, the microphone will give excellent results in a wide range of applications.
  
  Figure 1: Polar pattern selector on P420 front, preattenuation and bass cut switches on rear
  

• Polar pattern selector: Selector 1 on the microphone front sets the microphone polar pattern to cardioid, omnidirectional, or figure eight.
• Switchable preattenuation pad: Selector 2 on the microphone rear lets you increase the headroom by 20 dB for distortionfree close-in recording. The preattenuation pad prevents the microphone's output level, particularly at low frequencies, from overloading the miniature transformers used in many mixer input stages, etc.
• Bass cut filter: Selector 3 on the microphone rear 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 causes in any unidirectional microphone. The filter rolls off at 12 dB/octave from 300 Hz downward.

1. Use an XLR cable to connect the microphone to a balanced XLR input with phantom power.
2. Switch the phantom power on. (Refer to the user manual of the unit to which you connected your microphone.)

Operation

Operating instructions

The P420 is a general-purpose multi-pattern microphone for recording, broadcast, and onstage use.
Every instrument radiates its sound in a specific way. Therefore, to get the best sound it is crucial to experiment with microphone placement.

• Whichever polar pattern you selected, it may be good to know which way the transducer axis is facing: the front of the microphone is the side of the body with the AKG logo and polar pattern selector (1) on it.
  
  
• When recording wind instruments or vocals, make sure not to blow or sing directly into the microphone. To avoid unwanted wind and pop noise or moisture problems, place an optional PF80 pop screen from AKG between the microphone and vocalist/instrument.
• Keep the microphone dry. Moisture from blowing or singing directly at the capsule from a short distance, or extremely high humidity may cause the microphone to start crackling or go very quiet due to partial short circuits in the polarization voltage.
• If you use the microphone in the open air, use an optional AKG W4000 windscreen to protect the microphone from moisture and reduce wind noise.
• High volume instruments: You can use this microphone for close-in recording of very loud instruments (brass instruments, kick drum, etc.). Just switch the preattenuation pad in to increase the microphone's capability of handling sound pressure levels to 155 dB.
• Low-frequency noise: To suppress low-frequency noise such as air conditioning rumble, footfall noise, or traffic sounds, switch the bass cut filter in.

Selecting Polar Patterns

Each of the P420's selectable polar patterns is virtually frequency independent so that reflected sound, too will be reproduced accurately and uncolored.

• Cardioid (center setting): This is a standard setting for recording and gives excellent results on all kinds of voices and a wide range of instruments. Remember to aim the microphone front at the sound source.
• Figure eight (left-hand setting): The microphone will pick up sounds arriving from the front and rear with equal sensitivity. Use this mode to mic up the side signal in M/S stereo recording or to record two sound sources (talkers, instruments) facing each other. It is also a good choice for cymbal overhead miking.
• Omnidirectional (right-hand setting): This is the preferred setting for "all around the mic" recording, high quality ambience (audience sound) miking, or far-field recording in exceptionally good-sounding large or small recording rooms, etc.

Cleaning

Microphone

• Use a soft cloth moistened with water to clean the surface of the microphone body.

Troubleshooting

Technical data

This product corresponds to the standards stated in the Declaration of Conformity.
You can request the Declaration of Conformity by e-mail from sales@akg.com.