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ES915SC
Cardioid Condenser Gooseneck Microphones with Mute Switch/LED
off (via integral 80 Hz high-pass UniSteep® lter) to help control undesired
ambient noise. A mute switch in the base lights when the mic is “on.”
The mute switch is designed to operate quietly without any mechanical
noise.
The microphone comes equipped with a two-stage foam windscreen,
a low-prole isolation mount, and a stand clamp to permit attaching
the microphone to a standard
mounting ange. The microphone is enclosed in a rugged housing with a
low-reectance black nish.
Installation and Operation
The ES915SC requires 11V to 52V phantom power for operation.
Output is low impedance (Lo-Z) balanced. The signal appears across Pins
2 and 3; Pin 1 is ground (shield). Output phase is “Pin 2 hot”— positive
acoustic pressure produces positive voltage at Pin 2.
®
engineered sound
5
/8"- 27 or 3/8"-16 threaded mic stand or
microphones
Features
• Illuminating mute switch in the base lights when the microphone
is “on”
• Plugs into any standard XLRF-type connector, or direct mounts to
5/8"-27 stands using included thread-mount adapter
• Low-prole element provides uniform cardioid polar pattern with
120º acceptance angle
• Superior off-axis rejection for maximum gain before feedback
• UniGuard
®
RFI-shielding technology offers outstanding rejection
of radio frequency interference (RFI)
• Easy-to-adjust, rugged, small-diameter, alternating gooseneck with
virtually no “memory” permits quick positioning into desired shape
• UniSteep® lter provides a steep low-frequency attenuation to
improve sound pickup without affecting voice quality
• Available interchangeable elements permit angle of acceptance
from 90º to 360º
• Included low-prole isolation mount attenuates noise, shock
and vibration
• Available in ve lengths
Description
The ES915SC is a wide-range miniature condenser microphone with a
cardioid polar pattern and an integral mute switch/LED. It is designed for
quality sound reinforcement, professional recording, television and other
demanding sound pickup applications.
The small-diameter double gooseneck design permits highly exible
positioning while maintaining a smooth, well-contoured appearance.
The ES915SC is available in the following models and lengths:
• ES915SC12: 304.8 mm (12.00")
• ES915SC15: 381.0 mm (15.00")
• ES915SC18: 457.2 mm (18.00")
• ES915SC21: 533.4 mm (21.00")
• ES915SC24: 609.6 mm (24.00")
The microphone requires 11V to 52V phantom power for operation.
The microphone can be mounted on a podium or desktop with the
included AT8474 low-prole isolation mount. Designed to be mounted
either above or beneath the mounting surface, the AT8474 rmly secures
the microphone while providing maximum attenuation of noise, shock
and vibration transmitted through the mounting surface. An AT8473 stand
clamp is also included to permit attaching the microphone to a standard
5
/8"- 27 or 3/8"-16 threaded mic stand or mounting ange.
The provided two-stage foam windscreen simply slips over the element,
effectively reducing wind noise and popping.
An integral 80 Hz high-pass UniSteep® lter provides easy switching
from a at frequency response to a low-end roll-off. The roll-off position
reduces the microphone’s sensitivity to popping in close vocal use. It
also reduces the pickup of low-frequency ambient noise (such as trafc,
air-handling systems, etc.), room reverberation and mechanically coupled
vibrations. To engage the UniSteep® lter, use the end tip of a paperclip
or other small pointed instrument to slide the switch toward the “bent” line.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 110° F (43° C) for extended periods. Extremely high
humidity should also be avoided.
AT8474 Isolation Mount Installation Instructions
Mounting Dimensions
A. 1.5 mm (1/16") pilot holes 3 places on 40.0 mm (1.57") circle.
B. 25.4 mm (1.00") hole through the mounting surface.
C. Outside edge of mount, 52.4 mm (2.06") diameter.
C
B
drawing not actual size
A
120°
The microphone is equipped with UniGuard
®
RFI-shielding technology,
which offers outstanding rejection of radio frequency interference (RFI).
The microphone’s cardioid polar pattern provides a 120° angle of acceptance.
Additional interchangeable elements with omnidirectional (360°),
hypercardioid (100°) and MicroLine® (90°) pickup patterns are available.
An XLRM-type connector insert at the base allows the microphone to be
plugged directly into an XLRF-type panel jack or microphone cable.
A recessed switch permits choice of at response or low-frequency roll-
1. The AT8474 mount can be mounted either above or below the
table surface.
2. Locate the center of the mounting location and mark it. Allow enough
clearance to accommodate the AT8474 mount on the desired
surface and make certain there are no physical obstructions
below the desired location.
3. Locate the three mounting screw holes and mark them.
4. Using a 1" hole saw, drill the through-hole for the microphone body.
(Note: Although a 1" drill bit will work, a hole saw provides for a cleaner
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12" or more on axis
LEGEND
Frequency in Hertz
Response in dB
10 dB
100
50
200
10k
5k
1k
500
2k
20k
Roll-off
257
ES915SC
hole and is less likely to damage the table surface.)
5. Using a 1.5 mm (1/16") drill bit, drill three pilot holes for the mounting
screws. (If mounting below the table surface, be certain NOT to drill
pilot holes through the table.)
6. Place the AT8474 mount over the hole and partially tighten the
three screws. Then place the microphone in the AT8474 so that the
microphone’s power module (base) extends through the AT8474 mount
into the hole. Tighten all three screws evenly. For maximum security,
the screws should be tight enough to ensure that the microphone is
held securely in place and cannot be removed without loosening
the screws.
7. If mounting the AT8474 mount below the surface of the table, slide
the rubber trim ring over the microphone (above the table surface) and
seat it between the microphone and the sides of the hole for a
nished appearance. (If mounting the AT8474 above the surface of the
table, you may also choose to use the trim ring beneath the surface of
the table, for added attenuation of noise, shock and vibration.)
8. After installing the microphone, assure maximum shock mount
effectiveness by providing some slack in the connecting cable. The cable
can be secured to the table with a standard wire clip or cable tie (not included).
Architect’s and Engineer’s Specications
The microphone shall be a xed-charge condenser designed for
permanent installation or portable applications. It shall have a cardioid
polar pattern with a uniform 120° angle of acceptance and a frequency
response of 30 Hz to 20,000 Hz. It shall be capable of accepting
optional interchangeable elements for additional polar patterns. The
microphone shall operate from an external 11V to 52V DC phantom
power source. It shall be capable of handling sound input levels up
to 138 dB with a dynamic range of 109 dB. Nominal open-circuit
output voltage shall be 10.0 mV at 1 V, 1 Pascal. Output shall be low
impedance balanced (250 ohms). It shall offer outstanding rejection of
radio frequency interference (RFI).
The microphone shall incorporate a self-contained power module with an
XLRM-type connector at the base for direct connection to a mating XLRFtype panel jack or cable connector. It shall include a recessed switch to permit
choice of at response or 80 Hz low-frequency roll-off. The microphone
shall incorporate an illuminating mute switch in the power module.
The mute switch shall illuminate when the microphone is on. The mute
switch shall be quiet in operation with no mechanical clicks or pops and
shall always return to the off position (after momentarily turning on to
verify microphone connection) when phantom power is restored.
A universal isolation-type shock mount suitable for above or below
surface installation shall be supplied for mounting the microphone in a
solid surface. It shall be possible to rmly secure the microphone in the
mount. The mount shall include appropriate hardware for installation. For
alternative mounting and portable applications, the microphone shall be
supplied with a stand clamp to permit attaching the microphone directly
to a standard
5
/8"- 27 or 3/8"-16 thread. A two-stage foam windscreen shall
also be included.
The microphone shall be a small-diameter double gooseneck design,
with an overall length of [304.8 mm (12.00"): ES915SC12]; [381.0 mm
(15.00"): ES915SC15]; [457.2 mm (18.00"): ES915SC18]; [533.4 mm
(21.00"): ES915SC21] [609.6 mm (24.00"): ES915SC24] and a head
diameter of 8.4 mm (0.33"). Weight shall be [125 grams (4.4 oz):
ES915SC12]; [130 grams (4.6 oz): ES915SC15]; [135 grams (4.8 oz):
ES915SC18]; [140 grams (4.9 oz): ES915SC21]; [145 grams (5.1 oz):
ES915SC24]. Finish shall be low-reectance black.
The Audio-Technica [ES915SC12]; [ES915SC15]; [ES915SC18];
[ES915SC21]; [ES915SC24] is specied.
Specications
Element
Polar pattern
Frequency response
Low frequency roll-off
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio
Phantom power requirements
Switches
Weight
Dimensions
Output connector
Optional interchangeable elements
Audio-Technica case style
Accessories furnished
In the intere st of standards develo pment, A.T.U.S. offers full
(12.3 mm)
(8.4 mm)
details on it s test methods to othe r industry
1 Pascal = 10 dynes/cm
1
Typical, A-weighted, using Audio Precision System One.
Specications are subject to change without notice.
0.48"
0.33"
professionals on request.
2
= 10 microba rs = 94 dB SPL
24.00"
(609.6 mm)
12.00"
(304.8 mm)
to
frequency response: 30–20,000 Hz
10 dB
200
100
12" or more on axis
Roll-off
500
1k
Frequency in Hertz
5k
2k
10k
20k
50
LEGEND
Fixed-charge back plate, permanently
polarized condenser
Cardioid
30-20,000 Hz
80 Hz, 18 dB/octave
–40 dB (10.0 mV) re 1V at 1 Pa
250 ohms
138 dB SPL, 1 kHz at 1% T.H.D.
109 dB, 1 kHz at Max SPL
1
65 dB, 1 kHz at 1 Pa
11-52V DC, 4 mA typical
Flat, roll-off; mute/on
ES915SC12: 125 g (4.4 oz)
ES915SC15: 130 g (4.6 oz)
ES915SC18: 135 g (4.8 oz)
ES915SC21: 140 g (4.9 oz)
ES915SC24: 145 g (5.1 oz)
ES915SC12: 304.8 mm (12.00") long
ES915SC15: 381.0 mm (15.00") long
ES915SC18: 457.2 mm (18.00") long
ES915SC21: 533.4 mm (21.00") long
ES915SC24: 609.6 mm (24.00") long,
All: 8.4 mm (0.33") head diameter,
18.9 mm (0.74") base diameter
Integral 3-pin XLRM-type
ESE-O omnidirectional (360°)
ESE-H hypercardioid (100°)
ESE-ML MicroLine® (90°)
M26
AT8474 universal isolation mount; AT8473
quick-mount stand adapter; 5/8"-27 to 3/8"-16
threaded adapter; AT8109 two-stage foam
windscreen
Response in dB
polar pattern
270˚
240˚
0˚
30˚
330˚
300˚
210˚
SCALE IS 5 DECIBELS PER DIVISION
150˚
180˚
60˚
90˚
120˚
LEGEND
200 Hz
0.74"
(18.9 mm)
1 kHz
5 kHz
8 kHz
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224
Audio-Technica Limited, Old Lane, Leeds LS11 8AG England
©2010 Audio-Technica U.S., Inc. audio-technica.com 0001-0118-01