Audio-Technica ES905CL Datasheet

ES905CL

Cardioid Condenser Rigid-Pipe Microphone

engineered sound

Installation and Operation

The ES905CL 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.

The microphone is intended for mounting to a hard surface, such as a table, desk, or podium using the isolation base plate. ATTENTION! Do not remove ball-in-socket assembly from the base plate. The microphone is supplied with three #8 x 1" black oxide wood screws for mounting the microphone. The cable can exit out the back of the microphone or be routed through a hole in the mounting surface. To install the microphone with bottom-routed cable: Drill a 4 mm (5/32") hole centered in the area where the microphone mount is to be positioned. Pass the cable extending from the microphone mount through this hole and mount the microphone into position using the screws provided.

microphones

Features

• Rigid-pipe design with ball-in-socket base permits exible positioning

• Sturdy metal base mounts to table, desk or podium with included hardware

• 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)

• UniSteep® lter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality

• Available interchangeable elements permit angle of acceptance from 100º to 360º

Description

The ES905CL is a wide-range condenser microphone with a cardioid polar pattern. It is designed for quality sound reinforcement, professional recording and other demanding sound pickup applications.

The rigid-pipe design with ball-in-socket base permits exible positioning while maintaining a clean appearance.

The microphone requires 11V to 52V phantom power for operation.

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°) and hypercardioid (100°) pickup patterns are available.

The microphone includes a 2.9 m (9.5') permanently attached miniature cable. Its free end connects to the provided AT8538 power module via a special TA3F-type connector designed to optimize RFI immunity. The output of the power module is a 3-pin XLRM-type connector.

A recessed switch in the power module permits choice of at response or low- frequency roll-off (via integral 80 Hz high-pass UniSteep® lter) to help control undesired ambient noise.

The microphone comes equipped with a power module and hardware for table-mounting the microphone’s (attached) isolation base plate. The microphone is enclosed in a rugged housing with a low-reectance black nish.

The attached wire mesh windscreen with internal pop protection effectively reduces noise from plosives, wind and ventilation air currents.

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.

Note: Audio-Technica has developed a special RFI-shielding mechanism that is an integral part of the connectors in the Engineered Sound® line. If you remove or incorrectly replace the connector, you may adversely affect the unit’s RFI immunity. Audio-Technica offers a crimp tool (ATCT) and RFI shields that enable you to shorten the cable and correctly reinstall the connector while maintaining the highest level of RFI immunity.

Architect’s and Engineer’s Specications

The microphone shall be a xed-charge condenser designed for permanent installation tabletop mounting. It shall have a cardioid polar pattern with a uniform 120° angle of acceptance and a frequency response of 60 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 111 dB. Nominal open-circuit output voltage shall be 12.5 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 have a 2.9 m (9.5') permanently attached miniature cable, terminating in a special TA3F-type output connector designed to optimize RFI immunity. The output connector shall connect to a TB3M-type jack on the included power module. The power module shall contain a recessed switch to permit choice of at response or 80 Hz low-frequency roll-off. The output of the power module shall be a 3-pin XLRM-type connector.

Mounting screws shall be provided with the microphone. The microphone shall be equipped with an attached wire mesh windscreen with internal pop protection.

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ES905CL

The microphone shall be a small-diameter ball-in-socket, rigid-pipe design, with an isolation base plate for table mounting. The microphone shall be

523.4 mm (20.61") long and have a head diameter of 24.6 mm (0.97"). Weight shall be 330 grams (11.6 oz). Finish shall be low-reectance black.

The Audio-Technica ES905CL 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

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

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.

professionals on request.

= 10 microba rs = 94 dB SPL

Switch Weight

Cable

Fixed-charge back plate, permanently polarized condenser Cardioid 60-20,000 Hz 80 Hz, 18 dB/octave –38 dB (12.5 mV) re 1V at 1 Pa 250 ohms 138 dB SPL, 1 kHz at 1% T.H.D. 111 dB, 1 kHz at Max SPL

67 dB, 1 kHz at 1 Pa 11-52V DC, 2 mA typical Flat, roll-off Microphone: 330 g (11.6 oz) Power module: 81 g (2.9 oz) Microphone: 523.4 mm (20.61") long,

24.6 mm (0.97") head diameter Power module: 92.9 mm (3.66") long,

18.9 mm (0.74") diameter Power module: Integral 3-pin XLRM-type

2.9 m (9.5') long (permanently attached to microphone), 3.2 mm (0.13") diameter, 2-conductor shielded cable, terminated with TA3F-type connector ESE-O omnidirectional (360°) ESE-H hypercardioid (100°) M37 AT8538 power module; three #8 x 1" black oxide wood screws for microphone mount

frequency response: 60–20,000 Hz

10 dB

100

330˚

500

200

Frequency in Hertz 12" or more on axis Roll-off

0˚

30˚

150˚

180˚

60˚

120˚

10k

90˚

LEGEND

200 Hz

1 kHz 5 kHz 8 kHz

LEGEND

polar pattern

300˚

270˚

240˚

210˚

SCALE IS 5 DECIBELS PER DIVISION

Response in dB

20k