Audix CX212B AUDIX CX212 B プリント

www.audixusa.com Call: 503-682-6933 Fax: 503-682-7114 

Audix Corporation 9400 SW Barber Street, Wilsonville, OR 97070

The microphone shall be of the condenser type with cardioid, omni-directional, and figure 8 polar patterns. The 

microphone shall operate on 48-52 volts phantom power and the nominal output impedance shall be equal to 200 

ohms at 1 kHz. The microphone shall have a sensitivity of 11 mV / Pa in the omni mode, and 16 mV / Pa in the 

cardioid and 11 mV / Pa in the figure 8 mode. The microphone shall have a maximum SPL level of ≥132 dB with a 

THD of 0.5%. The microphone shall have a fine steel mesh grill and a brass body 50 mm in diameter and 172 mm 

in length. The microphone shall be the Audix CX-212B.

The CX-212B is a low impedance microphone and should be plugged into a “mic level” input on your console, 

mixer, or recording device. The CX-212B requires phantom power and will NOT operate without phantom power 

voltage (48 Volts recommended) which is available on most professional mic preamps and mixing devices. If 

phantom power is not available on your equipment, you will have to procure a phantom power supply (such as the 

Audix APS2).

Avoid plugging or unplugging the microphone from the PA system unless the channel is muted or the volume of 

the system turned down. Failure to do so may result in a loud “popping” noise which could seriously damage the 

speakers in the PA system.

The correct side: Note that the front of the microphone element is on the same side as the printing. This side of 

the microphone should be facing towards the sound source.

Multi-patterns: The switch on the right hand side of the microphone allows you to change the polar patterns of 

the microphone as follows:

     - The switch in the furthest left position is the “omni” pattern. This pattern means that the mic is wide open and 

will pick up a full 360 degree radius in all directions.

     - The switch in the middle position is “cardioid”. This pattern means the microphone will pickup from the front of 

the microphone in a heart shaped pattern, rejecting sound from the rear side of the microphone.

    - The switch in the furthest right position is “figure 8”. This pattern means that the microphone will pickup from 

both the front and rear of the microphone in a figure 8 pattern, hence the name “Figure 8.”

This feature allows you to change the frequency response of the CX-112B and gently diminish the bass response 

from 300 Hz and below. The bass roll-off (also referred to as “attenuation”) is the switch on the left-hand side above 

the Audix logo. When the switch is all the way to the left (the “Flat” position), the bass roll-off is NOT engaged. In 

some cases, you will want to roll-off or filter out the bass frequencies from your recording or performance. These 

frequencies can be controlled by external EQ, however, the advantage of having them on the microphone is it 

is much cleaner to control these frequencies at the capsule level. In the case of live recording, the bass roll-off 

will help to eliminate unwanted boominess or rumble coming from other instruments on the stage (for example, 

the bass and bass drum). In the case of a recording environment, it will depend on the instrument or voice being 

recorded. The roll-off can help to eliminate plosives or popping from a vocal or it may be utilized to clean up the 

excessive bass frequencies from certain instruments. In any case, it is recommended to try “with” and “without” 

roll-off before making any final decisions.

*Further miking techniques may be found on our website at www.audixusa.com

To register your 

microphone, please visit 

www.audixusa.com

SERVICE AND WARRANTY:

This microphone is under warranty for 

a period of 3 years from any and all 

manufacturing defects. Should your 

microphone fail in any way, please 

contact  the  Audix  Service  department 

at  503-682-6933.  A  Return  Authoriza-

tion number is required before returning 

any products

.

CARE AND MAINTENANCE:

The CX-212B is manufactured to exacting 

specs with road worthy construction. However, 

the capsule is highly sensitive and should be 

handled with care. Avoid extreme temperatures 

and be sure to store your microphone in the 

pouch provided when not in use.  Moisture of 

any kind can adversely affect the sound and 

performance of your microphone. 

***All specifications subject to change without notice.

CX-212