Condenser
ADX12/18
ADX12/18
OVERVIEW
The ADX12 and ADX18 are professional miniature gooseneck condenser
microphones designed for applications such as podium, presentation, meetings
and teleconferencing. Known for their clarity, excellent sound quality and ease
of operation, the ADX12/18 will accurately capture and reproduce vocals from a
comfortable distance.
The ADX12/18 are characterized with a uniformly controlled cardioid polar pattern,
helping to isolate the speaker from other ambient noise in the room or on the
stage. The ADX12/18 mics are also available in a hypercardioid polar pattern
(models ADX12HC and ADX18HC) for tighter pick-up control. With a wide frequency
range of 40 Hz - 18 kHz, the ADX12/18 provide natural sound with exceptional
transient response.
The ADX12/18 mics are equipped with an integrated preamp circuitry built into the
base of the XLR and may be mounted permanently via the supplied flange mount or
with an optional flange shock mount (SMT1218R). The mics may also be used on a
standard mic stand or in conjunction with the Audix ATS10 or ATS1 table stand with
lighted on-off switch. Manufactured with very high standards and tight tolerances,
the ADX12/18 features a machined brass body, field replaceable capsule and a variety
of optional accessories. The ADX12/18 operate on phantom power of
18 - 52 Volts and are available in non-reflective black matte finish.
MODELS VARIATIONS
ADX12HC - Hypercardioid black
ADX18HC - Hypercardioid black
SUPPLIED ACCESSORIES
TM1218 - Flange table mount
WS1218 - External foam windscreen
OPTIONAL ACCESSORIES
ATS 1 - Table Base with programmable on/off switch
ATS 1 - LOGIC - Same as above, with Logic
ATS10 - Table Base with on/off switch
SMT1218R - Rubber insulated shockmount
DCLIP - Mic stand adapter
APS 2 - Two-channel phantom power supply
Microphones
FEATURES
• Natural accurate sound
• Interchangeable capsule
• Low profile design
• Dual gooseneck sections allows for
precise positioning
• Low noise electronics
• Available with cardioid or hypercardioid
polar pattern
• Designed, assembled, manufactured &
tested in the USA
APPLICATIONS
• Pulpit, podium
• Board meetings, teleconferencing
REPLACEMENT CAPSULES
CPST12 - Cardioid in black
CPST12H - Hypercardioid in black
ATS1 APS2 SMT1218R DCLIP
• Video, recording
• Room security or monitoring
SPECIFICATIONS
Transducer Type
Frequency Response
Polar Pattern
Output Impedance
Sensitivity
Equivalent Noise Level
Signal to Noise Ratio
Maximum SPL
Power Requirements
Connector
Polarity
Materials / Finish
Weight
Length
Pre-Polarized Condenser
40 Hz - 18 kHz
Cardioid/Hypercardiod
150 ohms
24 mV (C) / Pa @ 1k
30 mV (HC) / Pa @ 1k
28 dB (A weighted)
66 dB
≥120 dB
18 - 52 Volts phantom
3-pin XLRm
Positive pressure on diaphragm
produces positive voltage on
pin 2 relative to pin 3 of output
XLR connector
Machined Aluminum / Black
Finish
113 g / 4 oz (ADX12)
159 g / 5.6 oz (ADX18)
403 mm / 16 in (ADX12)
558 mm / 22 in (ADX18)
DIMENSIONS (mm)
FREQUENCY RESPONSE
POLAR PATTERNS
ARCHITECT AND ENGINEER SPECIFICATIONS
The microphone shall be of the condenser type with a modular threaded capsule. The micro-
phone shall be available in a cardioid and hypercardioid polar pattern and shall have a base
terminating in a male XLR plug. The microphone shall operate on 18 - 52 Volts phantom power.
The microphone shall have a sensitivity of 24mV/ Pa and a nominal impedance of 150 ohms at
1 kHz. The microphone shall have a maximum SPL level of ≥120 dB and shall be fabricated from
aluminum tubing, brass fittings, and coiled steel gooseneck material. The microphone capsule
shall be 12 mm and available in two lengths: 403 mm and 558 mm. The microphone shall be the
Audix ADX12 and ADX18.
OPERATION AND MAINTENANCE
The ADX12/18 are low impedance microphones and should be plugged into a “mic level” input
on your console, mixer, or recording device. The ADX12/18 require phantom power and will NOT
operate without phantom power voltage (minimum of 18 - 52 Volts) which is available on most
professional mic preamps and mixing devices. Avoid plugging or unplugging the microphone
from a 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.
Changing Capsules: Capsules can easily be interchanged by simply screwing them on and off.
Important: The small copper lead on the housing must make contact with the small pin
underneath the capsule in order to work. The lead contact can be stretched gently by hand
if necessary.
Permanent Installation: The ADX12/18 can be conveniently plugged into any standard XLR
female connector or receptacle. For permanent installation onto a table, podium or flat surface,
use the supplied flange mount. The base of the ADX12/18 will fit securely into the flange and a
standard XLR-f microphone cable or panel jack may be used. If further shockmount or isolation is
required, it is recommended to used the optional SMT1218R rubber shockmount which requires
boring out a 2 inch hole.
USER TIPS
Speaking distance and angle of microphone: The two flexible portions of the microphone
will enable you to position the mic according to height and speaking style of the user. In general,
the microphone can be angled at 60-75 degrees towards the speaker and be 12-16 inches away
from the mouth. A shorter distance can be used for a fuller sound or for weaker voices, but avoid
getting too close to the microphone element.
Windscreen: The supplied windscreen should be used to help minimize pop noise plosives
and breath noise. If breath or pop noise appears to be excessive, move farther away from the
microphone or position the speaker over the top of the microphone rather than directly into it.
Using with Table Stand: For ultimate flexibility and portability, the optional ATS1, ATS1 LOGIC or
the ATS 10 heavy duty table stands are available. Since the electronics for the ADX12/18 are built
right into the base of the microphone, all that is necessary is to plug the mic directly into the
table stand connector on the top of the base. The mic cable will be plugged into the back of
the base and connected to a low impedance mic level input on the mixer or recording device.
Remember that phantom power is required in order to operate. There is a noiseless 2 position
on-off switch located in the table stand. The down position is ‘on’ and the up position is ‘off’. The
LED indicator light will be lit when the mic is turned on. This is not a push-to-talk system so
you need not hold down the switch, just push and click to on or off position. A standard XLR-
XLR microphone cable can be used to connect the ATS10 to the mixer or recording device. For
programmable switching use the ATS1 or ATS1L (Logic).
To use on microphone stand: The ADX12/18 may be used on any standard microphone stand
by using the DCLIP. The XLR base of the microphone will snap securely into the DCLIP and can
be used at any angle.
Further miking techniques may be found at www.audixusa.com.
ADX12/18
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.
ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.
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
www.audixusa.com
Audix Corporation 9400 SW Barber St. Wilsonville, OR 97070
503.682.6933 Fax: 503.682.7114
ver 2.0 05-16
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