Audix M1250B User Manual

MINIATURE CONDENSER

M1250B

M1250B

OVERVIEW

The M1250B is a miniaturized cardioid condenser microphone with a fully integrated

preamp, detachable cable and has RF immunity to prevent interference from cell

phone and GSM devices. The M1250B is also available with hypercardioid, omni or

shotgun capsules, giving the microphone the unique ability to be used in a wide

variety of live, studio and broadcast applications.

The M1250B is available with a wide array of clips and accessories allowing the

microphone to be used for acoustic instruments, choral miking, overhead stage

miking, podiums, conferences and presentations.

MODEL VARIATIONS

The M1250B mics are also available with white finish.

M1250BHC - Hypercardioid mic in black
M1250BO - Omnidirectional mic in black
M1250BS - Supercardioid mic in black

MICROPHONE

FEATURES

· Lightweight, small profile

SUPPLIED ACCESSORIES

CBLM25

MCMICRO

MCHANGER

WS1218

- 25’ cable with mini-XLRf - XLRm connectors

- Mic stand adapter

- Hanging clip

- External foam windscreen

OPTIONAL ACCESSORIES

MICROBOOM - 24”, 50” or 84” carbon fiber boom arm with clutch assembly
MCSWIVEL - Shock mount adapter with ball and socket pivot for complete control

over mic positioning. For use with The Micros

DCLAMPMICRO - Lug mount adapted for hand percussion instruments with
shockmount ring

DVICEMICRO - Drum rim mount attachment with shockmount ring
DFLEXMICRO - Wide jaw butterfly clip with shockmount ring
MC20i - Clamp on clip for Sax, Trumpet and other brass instruments
MGN Series - 6”, 12” or 18” gooseneck with base terminating in standard XLRm

ATS10 - Heavy duty shock absorbent table stand

TM

· Miniaturized preamp circuitry

· No external power adapter needed

· 12 mm gold vapor diaphragm

· Immune to RF interference

· Extremely low noise, high SPL handling

· Designed, assembled, manufactured &

tested in the USA

· 3 year warranty

APPLICATIONS

· Acoustic instruments

· Ambient room miking

· Symphonic area miking

· Speech, Presentation

· Cymbals, Percussion

· Acoustic miking

· Choral miking

DFLEX MICRO MCSWIVEL MC HANGER MICROBOOM MGN 18 on ATS10

SPECIFICATIONS

Transducer Type

Frequency Response

Polar Pattern

Output Impedance

Sensitivity

Signal/Noise Ratio

Equivalent Noise Level

Maximum SPL

Dynamic Range

Power Requirements

Connector

Materials / Finish

Weight

Length

DIMENSIONS (mm)

Condenser

50 Hz - 19 kHz

Cardioid, Hypercardiod, Omni,
Supercardiod

150 ohms

10 mV (C/HC), 11mV (O/S) / Pa
@ 1k

73 dB

21 dB (A-weighted)

≥140 dB

119 dB

18-52 V

3 pin mini-XLRm

Machined Brass / Black Finish

16 g / 0.56 oz

54 mm / 2.1 in

ARCHITECT AND ENGINEER SPECIFICATIONS

The microphone shall be of the condenser type with a modular threaded capsule
available in cardioid, hypercardioid, omni and supercardioid polar patterns. The
microphone shall be protected from RF interference. The microphone shall
have a fully integrated preamp circuit thereby eliminating the need for a remote
preamplifier module. The microphone shall operate on 18 - 52 Volts DC and the
nominal output impedance shall be equal to 150 ohms at 1 kHz. The microphone
shall have a sensitivity of 10 mV (C/HC), 11mV (O/S) / Pa at 1 kHz. The microphone
shall have a maximum SPL level of ≥140 dB with THD of 0.5%, the microphone
shall be machined out of brass and the dimensions shall be 12 mm in diameter by

54 mm in length. The microphone shall be the Audix M1250B.

OPERATION

The M1250B is a low impedance microphone and should be plugged into a “mic
level” input on your console, mixer or recording device. The M1250B 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, 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 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.

M1250B

FREQUENCY RESPONSE

POLAR PATTERNS

Cardioid Hypercardioid Omni

Shotgun

USER TIPS

The M1250B, despite its size, has all the attributes of a world class recording
microphone. Low noise integrated electronics allows the microphone to
function in the close field as well as in distance miking. It can be used on a wide
variety of acoustics instruments as well as on voice and vocal ensembles.

Cardioid: The cardioid pattern is the most widely used as it offers a good
balance between the sound of the instrument or voice within the context of the
room or venue. For instruments, the M1250B may be positioned anywhere from
3 - 12 inches depending on instrument and room acoustics. For speech or singe
voice the typical working distance is 8 - 10 inches. For area miking or group
vocals the working distance can be between 2 - 3 feet from the sound source.

Hypercardioid: In situations where the volume is loud on stage or there
are many open microphones, this pattern is helpful in further isolating the
instrument or vocal from the rest of the instruments on stage. The microphone
can be worked at ½ the distance of cardioid if necessary.

Supercardioid: This pattern has a longer reach and more narrow pattern than
the other cardioid patterns. This pattern is helpful for podium applications
where more distance is a factor. It is helpful in pin-pointing hard to reach areas,
especially for recording outdoors, and with video.

Omni: This pattern offers the most accurate and natural sound reproduction of
all the patterns. It is ideal for recording, live broadcasts or video where sound
reinforcement speakers are not an issue.

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

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 RESPEC T 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 PRODUC TS, 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 POSSIBILIT Y 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: [phone]

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