Audix SCX25A Manual

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SCX25A

OVERVIEW

The SCX25A is a professional studio condenser microphone with an elegant design

and a patented capsule suspension system. Uniquely shockmounted within an

intricate machined brass ring, the SCX25A capsule is completely isolated from

the mic body and electronics. By successfully minimizing acoustic reﬂections and

diﬀractions, the SCX25A delivers a pure, open-air sound with exceptional detail

and realism.

With a smooth uniform frequency response from 20 Hz - 20 kHz, the SCX25A is very

consistent when responding to on and oﬀ-axis signals, exhibiting excellent phase

coherence and minimal proximity eﬀect. The SCX25A has a wide cardioid polar

pattern which enables the sound engineer the opportunity to blend the sound of

the instrument or vocal with the sound of the room. Other features include a

one-inch (25 mm) gold vapor capsule, miniaturized electronics and an extremely

small footprint. The SCX25A will handle SPL in excess of 135 dB and will provide

up to 20 dB of ambient noise rejection. For a lower output option, the SCX25ALO is

available with a max SPL limit of 150 dB and a sensitivity of 4.9 mV/Pa.

In addition to vocals, the SCX25A is ideally suited to capture acoustic instruments

such as piano, guitar, vibes, woodwinds, brass, percussion toys, drum overheads, choir,

orchestra and symphony sectionals.

The SCX25A is manufactured with a precision machined brass body, innovative

capsule suspension system, steel mesh grill, black multi-layer class ‘A’ liquid ﬁnish and

gold plated XLR connector.

MODEL VARIATIONS

SCX25ALO - Low output SCX25A

SCX25AMP - Matched pair

SCX25APS - Piano Miking system

SUPPLIED ACCESSORIES

Metal adapter to accommodate 3/8” mic stands

CASEWOOD - Foam lined wooden case

DCLIP - Heavy-duty nylon molded snap on clip

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.

STANDKD - Short pedestal stand with telescoping boom arm.

SMT25 - Low profile shock mount system with nylon cable and thumbscrew for

positioning.

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

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

braided shield for conductivity. 6 mm PVC jacketed.

P1 - Carrying pouch.

Studio Condenser

Microphone

SCX25A

FEATURES

· Premium large diaphragm studio microphone for

studio or live sound

· Delivers pure open air sound

· Shock mounted capsule suspension system

· Designed, machined, assembled and tested in

the USA

· 3 year warranty

APPLICATIONS

·Piano

·Acoustic instruments

·Drum overheads

·Ambient room mic

·Studio, lead, and backing vocals

·Voice over

·Choir

·Orchestra

CASEWOOD DCLIP APS2 DFLEX STANDKD SMT25 PD133 CBL20 P1

FREQUENCY RESPONSE

POLAR PATTERNS

ARCHITECT AND ENGINEER SPECIFICATIONS

The microphone shall be of the condenser type with a cardioid polar pattern.

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 28 mV / Pa at 1 kHz. The microphone shall have a maximum

SPL level of ≥135 dB with a THD of 0.5%. The microphone shall have a ﬁne steel

mesh grill and a body machined of brass with dimensions of 21 mm diameter at

the base, 51 mm in diameter at the widest point on the grill and 148 mm in length.

OPERATION AND MAINTENANCE

The SCX25A is a low impedance microphone and should be plugged into a “mic

level” input on your console, mixer, or recording device. The SCX25A 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 or studio monitors.

The SCX25A 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 case

provided when not in use. Moisture of any kind can adversely aﬀect the sound

and performance of your microphone.

USER TIPS

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.

The SCX25A is a world class recording microphone with very high output and

sensitivity. Therefore, it is not intended to be used at very close range, especially

with instruments that produce high sound pressure levels. For high SPL, use

SCX25ALO.

For acoustic instruments: In general, the working range should be

from 1-2 feet, depending on the instrument and room acoustics

For voice: the minimum distance is 8-10 inches for a single voice.

For group vocals: Place microphone 2-3 feet away.

For piano: For live performance and live recordings, it is sometimes

recommended to use the short stick or closed lid in order to minimize the

surrounding instruments from “bleeding” into the piano mics. In these cases, it

is suggested to use the Audix DFLEX mounting clips which enable the SCX25A

to be mounted right on to the rail of the piano. The mics can be positioned

horizontal to the sound board, typically one towards the front of the keyboard

and one towards the rear of the keyboard over the bass strings.

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 04-16

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

SCX25A

Transducer Type

Condenser

Frequency Response

20 Hz - 20 kHz

Polar Pattern

Cardioid

Output Impedance

200 ohms

Sensitivity