DESCRIPTION
The ES915ML is a wide-range
miniature condenser microphone
with a MicroLine
®
polar pattern. It
is designed for quality sound
reinforcement, professional recording,
television and other demanding
sound pickup applications. The
small-diameter double gooseneck
design per mits highly flexible
positioning while maintaining a
smooth, well-contoured appearance.
An included foam windscreen
effectively reduces wind noise and
“popping.”
The ES915ML is equipped with
UniGuard
®
RFI-shielding technology,
which offers outstanding rejection of
radio frequency interference (RFI).
The microphone is RoHS compliant
– free from all substances specified
in the EU directive on hazardous
substances.
The microphone's MicroLine
®
polar
patter n provides a 90° angle of
acceptance. Additional interchange-
able elements with omnidirectional (360°), cardioid (120°) and
hypercardioid (100°) pickup patterns are available.
The integral power module can be powered from any external 11V to
52V DC phantom power supply. A recessed switch in the power module
permits choice of flat response or low-frequency roll-off (via integral 80
Hz high-pass UniSteep
®
filter) to help control undesired ambient noise.
The microphone is enclosed in a rugged housing with a low-reflectance
black finish. It features an XLRM-type connector insert at its base, allow-
ing it to be plugged directly into an XLRF-type panel jack or microphone
cable. In addition to an AT8474 low-profile isolation mount, an AT8473
stand clamp is included to permit attachment of the XLR mic base to a
standard
5
/
8
"-27 or
3
/
8
"-16 threaded mic stand or mounting flange.
The ES915ML is available in the following models and lengths:
• ES915ML12: 423.8 mm (16.69")
• ES915ML15: 500.0 mm (19.69")
• ES915ML18: 576.2 mm (22.69")
• ES915ML21: 652.4 mm (25.69")
• ES915ML24: 728.6 mm (28.69")
INSTALLATION AND OPERATION
The ES915ML requires 11V to 52V phantom power for operation.
Output is low impedance balanced. The output connector mates with
XLRF-type cable connectors. The balanced signal appears across Pins
2 and 3, while the ground (shield) connection is Pin 1. Output is phased
so that positive acoustic pressure produces positive voltage at Pin 2, in
accordance with industry convention.
The microphone can be mounted on a podium or desktop with the
included AT8474 low-profile isolation mount. Designed to be mounted
either above or beneath the mounting surface, the AT8474 firmly
secures the microphone while providing maximum attenuation of noise,
shock and vibration transmitted through the mounting surface.
Installation details are provided on the back of this sheet. An AT8473
stand clamp is also included to permit attachment of the XLR mic base
to a standard
5
/
8
"-27 or
3
/
8
"-16 threaded mic stand or mounting flange.
The provided foam windscreen simply slips over the element, effectively
reducing wind noise or “popping.”
An integral 80 Hz high-pass UniSteep
®
filter provides easy switching
from a flat frequency response to a low-end roll-off. The roll-off position
reduces the pickup of low-frequency ambient noise (such as traffic, air-
handling systems, etc.), room reverberation and mechanically coupled
vibrations. To engage the UniSteep
®
filter, use the end tip of a paperclip
or other small pointed instrument to slide the switch toward the “bent”
line.
While a modern condenser microphone is not unduly sensitive to the
environment, temperature extremes can be harmful. Exposure to high
temperature can result in gradual and permanent reduction of the out-
put level. Avoid leaving the microphone in the open sun or in areas
where temperatures exceed 110° F (43° C) for long periods of time.
Extremely high humidity should also be avoided.
ES915ML
MICROLINE
®
CONDENSER
GOOSENECK MICROPHONE
ARCHITECTS AND ENGINEERS SPECIFICATIONS
The microphone shall be a fixed-charge condenser designed for
permanent installation or por table applications. It shall have a
MicroLine
®
polar pattern with uniform 90° angle of acceptance and
shall be capable of accepting optional interchangeable elements for
additional polar patterns. It shall have a frequency response of 30 Hz
to 20,000 Hz and be capable of handling sound input levels up to 133
dB with a dynamic range of 109 dB. Nominal open-circuit output
voltage shall be 17.7 mV at 1 kHz, 1 Pascal. Output shall be low
impedance balanced (250 ohms).
The microphone shall operate from an external 11V to 52V DC
phantom power source. It shall offer outstanding rejection of radio
frequency interference (RFI). The microphone shall be RoHS compliant.
The microphone shall be a double gooseneck design permitting highly
flexible positioning and noiseless operation. It shall incorporate a self-
contained power module with an XLRM-type connector at the base
for direct connection to a mating XLRF-type panel jack or cable
connector. The power module shall include a recessed switch for low-
frequency roll-off. The low-frequency roll-off shall be a tailored roll-off
at 80 Hz to minimize pickup of unwanted mechanical noise.
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 fir mly 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 foam windscreen shall also be included.
The microphone shall be a small-diameter double gooseneck design,
with an overall length of [16.69" (423.8 mm): ES915ML12];
[19.69" (500.0 mm): ES915ML15]; [22.69" (576.2 mm): ES915ML18];
[25.69" (652.4 mm): ES915ML21]; [28.69" (728.6 mm): ES915ML24].
Head diameter shall be 0.31" (8.0 mm). The microphone weight shall
be [4.6 oz (129 grams): ES915ML12]; [4.7 oz (134 grams):
ES915ML15]; [4.9 oz (139 grams): ES915ML18]; [5.1 oz (144 grams):
ES915ML21]; [5.3 oz (149 grams): ES915ML24]. Finish shall be low
reflectance black.
The Audio-Technica [ES915ML12]; [ES915ML15]; [ES915ML18];
[ES915ML21]; [ES915ML24] is specified.
AT8474 LOW-PROFILE ISOLATION MOUNT INSTALLATION
INSTRUCTIONS
MOUNTING DIMENSIONS
A.
1
/
16
" (1.5 mm) pilot holes 3 places on 1.57" (40.0 mm) circle.
B.
1.00" (25.4 mm) hole through the mounting surface.
C.
Outside edge of mount, 2.06" (52.4 mm) diameter.
Drawing not actual size.
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.
Continued on back.
C
B
A
