AUDIX SCX25 Details
The SCX-25
is a condenser microphone with an elegant design and a revolutionary capsule
suspension system. Uniquely shock mounted within an intricate machined brass
ring, the SCX-25 capsule is completely isolated from the mic body and the
electronics. By successfully minimizing acoustic reflections and diffractions,
SCX-25 delivers a pure, open-air sound unlike any other microphone, regardless
of size or cost.
Delivering a smooth uniform cardioid frequency response from 20 - 20k, the
SCX-25 will reproduce vocals and acoustic instruments with exceptional detail
and realism. The SCX-25 is very consistent when responding to incoming off-axis
signals, exhibiting excellent phase coherence and minimal proximity effect.
By employing miniaturized low noise components, the preamp circuitry for the
SCX-25 is housed within a brass microphone body which is merely 4 inches long.
The result is the smallest footprint of any large diaphragm microphone to date,
allowing the SCX-25 more convenience and freedom when it comes to mic
placement. And because of the internal capsule suspension mounting system, the
need for costly shock mounts is eliminated and set-up time is greatly
simplified.
The SCX-25 operates on phantom power of 48 - 52 Volts. Optimum results will be
achieved by using the SCX-25 with a high quality mic preamplifier and premium
quality microphone cable.
Operation and Maintenance: Condenser microphones as a general rule are much
more sensitive and reactive than dynamic microphones and should be handled with
care. Avoid extreme temperatures wherever possible. Moisture and high humidity
can adversely effect the performance of the microphone and cause permanent
damage. When not in use, please store your mic in the pouch or case provided at
room temperature.
Live Sound & Recording The SCX-25 can be used successfully to record any
acoustic instrument, which, of course, includes the human voice. It is an
outstanding choice for symphonic recordings, bluegrass instruments, orchestral
instruments, zone miking, and room miking. We are constantly receiving new
miking ideas and applications from live sound and recording engineers. Please
consult the Audix web site for updates or call us if you have questions
regarding specific instruments or applications.
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.
Vocals: The SCX-25 is a stunning vocal microphone with an extreme accuracy and
detail. Since the SCX-25 is not prone to proximity effect, the vocalist can be
positioned just about anywhere within a 2 foot range. The microphone can be in
just about any position as long as the element is directly facing the artist's
voice. A pop-screen of some type should be employed.
Piano: The SCX-25 is the ideal piano microphone and is being used successfully
for both studio and live applications. A conventional stereo pair set up is the
most popular method. Typically one mic placed mid-way over the upper register
towards the keyboard, and one mic placed mid-way over the lower register
towards the rear of the strings. The SCX-25 can be placed very close to the
strings (and hammers) for a more percussive sound. For classical piano, the
pair of microphones is usually placed outside the piano facing the lid at a
distance of anywhere between 4-8 feet from the strings.
Closed lid: For live sound and live recording, the biggest problem is that
piano mics are prone to picking up sound from the rest of the instruments on
stage. For this reason, most live sound engineers like to get the lid either
closed or somewhat closed. This usually results in a “boxy” or harsh sound. The
SCX-25 can provide a beautiful and realistic sound even with the lid completely
closed. By using the optional D-flex mic clip, inside miking is made easy.
These clips will attach to the dividing bars of the piano and can be placed in
a wide variety of positions. This method allows for the piano lid to be
completely closed if necessary.
Acoustic guitar: One microphone— The SCX-25 provides a huge soundfield, so you
will want to experiment in order to find the “sweet spot” of the guitar. The
trick is to find the perfect blend between the bass overtones which eminate
from the body, the picking of the strings, and the clarity of the fretboard. A
good starting point is 12 inches out, 4-6 inches above the soundhole, the mic
placed between the soundhole and the end of the fretboard. Stereo miking—One
mic near the fretboard and the other 18 inches above the body of the guitar.
Features:
Innovative design
Isolated capsule suspension system
Miniaturized pre-amp
Extremely small footprint (brass body only 4 inches
long)
Supplied Accessories
Foam lined Wooden carrying case (CC5) High quality
nylon mic clip adjustable through 180ş with a standard 5/8 inch –27 thread
(Note: metal adapter also supplied to accommodate European standard
threads(MC1)
Cordura carrying pouch (P1)
Applications:
Studio vocals, lead and backing
Voice over
Choir
Ambient room mic
Drum overheads
Orchestra
Bells, chimes, marimba, vibes
Acoustic instruments (piano, sax, strings, guitar,
flute)
Specifications:
Transducer Type Condenser Condenser
Frequency Response: 20 Hz - 20 kHz
Polar Pattern Cardioid
Output Impedance 200 Ohms balanced
Sensitivity: 29 mV (ref 1k @ 1 Pascal)
Equivalent Noise Level 14 dB (A weighted)
Signal to Noise Ratio 80 dB (ref 1k @ 1 Pascal)
Power Requirements 48 - 52v phantom
Maximum SPL 138 dB
Dynamic Range 124 dB
Cable/Connector 3 pin gold plated male XLR
connector
Polarity Positive voltage on pin 3 relative to pin
2 of
output XLR connector
Housing Machined Brass
Weight 7.8 oz/221 grams (without cable)
WARNING: The
SCX-25 requires 48-52 Volts of phantom power to polarized the back plate and to
fully charge the element. For this reason, DO NOT PLUG OR UNPLUG THE MICROPHONE
INTO OR OUT OF THE PA SYSTEM UNLESS THE VOLUME OF THE SYSTEM IS TURNED DOWN.
Failure to do so may result in a loud "popping" noise sensation which could
seriously damage the speakers in the PA system. Power requirements are 48-52
Volts Phantom Power. Most current mixing boards are equipped with phantom
power, however, if phantom power is not available please use the Audix APS-2
power supply to interface between the microphone
and the mixing board.
OUTPUT: The SCX-25 output is balanced
across Pin 2 (positive) with respect to Pin 3. The shield is connected to Pin
1. It is recommended to use a high quality microphone cable with 3 pin XLR
connectors.