Audio-Technica ES915SC User Manual

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-prole 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-reectance 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

/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-prole 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-prole 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-prole 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

/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 trafc, 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.

drawing not actual size

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

12" or more on axis

LEGEND

Frequency in Hertz

Response in dB

10 dB

100

200

10k

500

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 Specications

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

/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-reectance black.

The Audio-Technica [ES915SC12]; [ES915SC15]; [ES915SC18]; [ES915SC21]; [ES915SC24] is specied.

Specications

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

Typical, A-weighted, using Audio Precision System One.

Specications are subject to change without notice.

0.48"

0.33"

professionals on request.

= 10 microba rs = 94 dB SPL

24.00"

(609.6 mm)

12.00"

(304.8 mm)

frequency response: 30–20,000 Hz

10 dB

200

100

12" or more on axis Roll-off

500

Frequency in Hertz

10k

20k

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

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