Audix ADX51 Specifications

Studio Condenser

ADX51

ADX51

OVERVIEW

The ADX51 is a professional pre-polarized condenser microphone used for stage,

studio and broadcast applications. The ADX51 is known for its clear, accurate response

and flexibility to handle close or distance miking for a wide variety of acoustic

instruments.

Characterized with a uniformly controlled cardioid polar pattern, the ADX51 is

designed to capture the acoustics of the instrument being miked while at the same

time isolating it from the rest of the instruments on stage. With a wide frequency

range of 40 Hz - 18 kHz, the ADX51 features a 14 mm gold vapor diaphragm and a -10

dB pad and bass roll-off filter at 150 Hz.

The ADX51 is very easy to position, durable and manufactured to high standards

and tight tolerances. The ADX51 has a precision machined brass body, durable black

E-coat finish, steel mesh grill, and gold plated XLR connector.

SUPPLIED ACCESSORIES

Microphone

DCLIP - Heavy-duty nylon molded snap on clip
P1 - Carrying pouch
WS1C - External foam windscreen for reducing wind, sibilance and pop noise

OPTIONAL ACCESSORIES

APS2 - Two-channel 48 V phantom power supply. 110 V switchable to 240 V.
Detachable power cord.

DFLEX - Dual pivot rim mounted clip with extra wide butterfly jaws.

CBL20 - 20’ premium XLR-XLR balanced mic cable. Quad conductor, twisted

pair with braided shield for conductivity. 6 mm PVC jacketed.

PD133 - Optional two-layer mesh pop diffuser for controlling acoustic plosives.

SMT25 - Low profile shock mount system with nylon cable and

thumbscrew for positioning.

FEATURES

· Premium electret condenser microphone

· Smooth accurate frequency response

· Switches for -10 dB pad and bass roll-off

· Designed, assembled & tested in the USA

· 3 year warranty

APPLICATIONS

· Drum overheads, hi hat, cymbals

· Acoustic instruments

· Percussion table

· Group vocal, spoken word

· Ambient room miking

· Audience mics for in-ear monitors

DCLIP P1 WS81C APS2 DFLEX CBL20 PD133 SMT25

SPECIFICATIONS

Transducer Type

Frequency Response

Polar Pattern

Output Impedance

Sensitivity

Capsule Technology

Off Axis Rejection

Maximum SPL

Power Requirements

Connector

Polarity

Materials / Finish

Weight

Length

Pre-Polarized Condenser

40 Hz - 18 kHz

Cardioid

100 ohms

17 mV / Pa @ 1k

Black Electret GV Diaphragm

>15 dB

≥132 dB

9-52 V Phantom

3-pin XLRm

Positive pressure on diaphragm
produces positive voltage on
pin 2 relative to pin 3 of output
XLR connector

Brass / Black Finish

184 g / 6.5 oz

160 mm / 6.3 in

DIMENSIONS (mm)

FREQUENCY RESPONSE

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.

ADX51

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

POLAR PATTERNS

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PRODUCT REGISTRATION: Please register your product online at www.audixusa.com/docs_12/about/product_registration.shtml.
SERVICE AND WARRANTY:

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.

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

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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

Audix Corporation 9400 SW Barber St. Wilsonville, OR 97070

503.682.6933 Fax: [phone]

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