Transducer Type
Pre-Polarized Condenser
Frequency Response
40 Hz - 18 kHz
Polar Pattern
Cardioid
Output Impedance
100 ohms
Sensitivity
17 mV / Pa @ 1k
Capsule Technology
Black Electret GV Diaphragm
Off Axis Rejection
>15 dB
Maximum SPL
≥132 dB
Power Requirements
9-52 V Phantom
Connector
3-pin XLRm
Polarity
Positive pressure on diaphragm
produces positive voltage on
pin 2 relative to pin 3 of output
XLR connector
Materials / Finish
Brass / Black Finish
Weight
184 g / 6.5 oz
Length
160 mm / 6.3 in
Hi
Lo
FREQUENCY RESPONSE
POLAR PATTERNS
ARCHITECT AND ENGINEER SPECIFICATIONS
The microphone shall be a back plate pre-polarized condenser with a cardioid
polar pattern. The microphone shall operate on 9-52 Volts phantom power
and the nominal output impedance shall be equal to 100 ohms at 1 kHz. The
microphone shall have switches for -10 dB pad and 150 hz bass roll-off filter
and shall have a sensitivity of 17 mV / Pa at 1 kHz. The microphone shall have
a maximum SPL level of
≥
132 dB with a THD of 0.5%. The microphone shall be
machined from brass with dimensions of 19.5 mm in diameter and 160 mm
in length.
OPERATION AND MAINTENANCE
The ADX51 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, use a
phantom power supply such as the Audix APS2. Avoid plugging or unplugging
the microphone from a PA system unless the channel is muted or the volume of
the system is turned down. Failure to do so may result in a loud “popping” noise
which could seriously damage the speakers in the PA system, studio monitors
or headphones.
Pad and Roll-O: These recessed switches are located towards the middle of
the mic. You will need either a miniature screw driver or a pen to move them
down (engaged) or up (not engaged).
Pad: The switch on the left side of the mic is a -10 dB pad. This means you
can reduce the input level of the mic by 10 dB. This is very helpful for miking
extremely loud instruments (guitars, drums, horns) that can drive the mic into
distortion. Note that the feature is active when the switch is in the down position.
Bass Roll-O: This feature gently rolls off the bass frequencies starting at 150 Hz
and below which is very helpful in reducing boominess for voice or instrument.
Note that the feature is active when the switch is in the down position.
USER TIPS
The ADX51, an excellent choice to mic any kind of acoustic instrument, has
a cardioid pick-up pattern which helps to eliminate sound from other
instruments on stage from “bleeding” into the microphone. However, the
ADX51 is much more sensitive than a dynamic mic and will pick-up sound
from a greater distance. The acoustic nature of the instrument being miked
along with how loud it is will determine how far the microphone should
be from the sound source. For example, the ADX51 can be placed 1-2 feet
above the cymbals of a drum kit and still pick up plenty of sound , whereas
for a high-hat, the mic will need to be placed within 4-6 inches to be effective.
Allow a distance of 2-3 feet between microphones to avoid phase issues.
Further miking techniques may be found at www.audixusa.com.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
www.audixusa.com
503.682.6933 Fax: 503.682.7114
Audix Corporation 9400 SW Barber St. Wilsonville, OR 97070
ver 3.0 12-15
PRODUCT REGISTRATION: Please register your product online at www.audixusa.com/docs_12/about/product_registration.shtml.
SERVICE AND WARRANTY:
This microphone is under warranty for a period of 3 years to be free of defects in material and workmanship. In the event of a product failure due to materials or
workmanship, Audix will repair or replace said product at no charge with proof of purchase. Audix does not pay or reimburse shipping costs for warranty repairs or returns. The warranty excludes
any causes other than manufacturing defects, such as normal wear, abuse, environmental damage, shipping damage or failure to use or maintain the product per the supplied instructions. No
Implied Warranties: All implied warranties, including but not limited to implied warranties of merchantability and fitness for a particular purpose are hereby excluded. The liability of Audix, if any,
for damages relating to allegedly defective products shall be limited to the actual price paid by Dealer for such products and shall in no event include incidental or consequential damages of
any kind. Should your microphone fail in any way, please contact the Audix Service department at 503.682.6933. A Return Authorization is required before returning any product. OTHER THAN
THIS WARRANTY, AUDIX MAKES NO WARRANTIES, EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCTS, THE USE OF THE PRODUCTS, THE PERFORMANCE OF THE PRODUCTS. AUDIX SHALL
NOT BE LIABLE FOR SPECIAL INCIDENTAL, CONSEQUENTIAL, INDIRECT OR SIMILAR DAMAGES ARISING FROM OR BASED ON THE SALE, USE, STORAGE OR DISPOSAL OF THE PRODUCTS, AUDIX’S
SERVICE WORK, BREACH OF WARRANTY, BREACH OF CONTRACT. NEGLIGENCE, OR ANY OTHER THEORY OF LIABILITY, EVEN IF AUDIX HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
DIMENSIONS (mm)
SPECIFICATIONS
ADX51
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