Audio-Technica AT4060a Specifications

AT4060a

Cardioid Condenser Tube Microphone

Features

• Vintage tube sound with the versatile performance necessary for the most demanding studio applications

• Hand-selected tubes are individually tested and aged to maintain peak performance

• Regulated and heavily ltered heater current prevents noise contamination of audio signal chain

• Wide dynamic range, low self-noise and high max SPL capability

• Large coupling transformer provides superior low-frequency linearity

• Dual-diaphragm capsule design maintains precise polar pattern denition across the full frequency range of the microphone

• The 2-micron-thick, vapor-deposited gold diaphragms undergo a ve-step aging process so that the optimum characteristics achieved remain constant over years of use

• Precision-machined, nickel-plated brass, acoustic element bafe provides enhanced element stability and optimal sensitivity

• Custom shock mount provides superior isolation

Description

The AT4060a is a large-diaphragm cardioid condenser tube microphone. It is designed for use in the most demanding studio applications.

Each hand-selected tube is individually aged and tested, then employed in a uniquely congured circuit for enhanced tube performance. Specially tuned elements improve dynamic range and the ability to handle high SPLs without sacricing high-frequency characteristics. Floating-construction mounting of the elements provides isolation from noise and vibration.

The microphone operates in conjunction with the included tube microphone powering unit, which has low-impedance output and a ground-lift switch.

40 series studio microphones

Operation & Maintenance

The AT4060a does not require phantom power but operates in conjunction with the included tube microphone powering unit. The tube microphone powering unit has low-impedance balanced output (3-pin XLRM-type connector) and a ground-lift switch, which allows removal of hum caused by ground loops. 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.

To avoid phase cancellation and poor sound, all mic cables must be wired consistently: Pin 1-to-Pin 1, etc.

The microphone includes an AT8447 shock mount to provide mechanical isolation and secure mounting. This effective shock mount ts 5/8"-27 threaded stands. To use, slide the microphone into the shock mount basket and tighten the thumb screw to secure the microphone.

To set up the microphone with the tube microphone powering unit:

1) Make certain the tube microphone powering unit is turned off.

2) Plug the included 6-pin cable (female connector) into the microphone; then plug the other end of the cable (male connector) into the tube microphone powering unit.

3) Connect the output of the tube microphone powering unit into your mixer or other audio interface (using your 3-pin XLR-XLR cable — not included). Do not turn on the phantom power.

4) Plug the AC power cable into an AC wall outlet.

5) Turn on the tube microphone powering unit.

Important: Always turn the tube microphone powering unit off when connecting or disconnecting any cables.

As with any sophisticated vacuum tube equipment, the AT4060a requires a period of warm-up time before use. Allow at least 15 minutes after switching on the tube microphone powering unit for the unit’s electronics to stabilize.

A raised Audio-Technica emblem is on the front of the microphone. Position this side of the microphone toward the sound source.

In use, secure the cable to the mic stand or boom, leaving a slack loop at the mic. This will ensure the most effective shock isolation and reduce the possibility of accidentally pulling the microphone out of its mount.

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.

The cardioid polar pattern of the microphone is more sensitive to sound originating directly in front of the element, making it useful in controlling feedback, reducing pickup of unwanted sounds and providing isolation between performers.

The microphone includes a 7.6 m (24.9') output cable terminating in 6-pin XLR-type connectors for use between the microphone and the tube microphone powering unit.

The microphone is enclosed in a rugged housing. The included AT8447 shock mount provides superior isolation and permits mounting on any microphone stand with 5/8"-27 threads. A tube microphone powering unit, an AC power cable, rack-mount adapters for the tube microphone powering unit and a protective carrying case are also included.

AT4060a

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Specications

Element

Polar pattern

Frequency response

Open circuit sensitivity

Impedance

Maximum input sound level

Noise

Dynamic range (typical)

Signal-to-noise ratio1

Power requirements

Weight

Dimensions

Output connector

Cables

Accessories furnished

In the interest of standards development, A.T.U.S.

offers full details on its test methods to other 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 microbars = 94 dB SPL

Externally polarized (DC bias) condenser Cardioid 20-20,000 Hz –34 dB (19.9 mV) re 1V at 1 Pa 200 ohms 150 dB SPL, 1 kHz at 1% T.H.D.; 149 dB SPL, 1 kHz at 0.5% T.H.D.

19 dB SPL 131 dB, 1 kHz at Max SPL 75 dB, 1 kHz at 1 Pa AT8560a tube microphone powering unit (100-240V AC) (120V AC for USA/Canada) Microphone: 645 g (22.8 oz) Tube microphone powering unit: 1.3 kg (2.87 lbs) Microphone: 215.0 mm (8.46") long,

53.4 mm (2.10") maximum body diameter Tube microphone powering unit:

212.0 mm (8.35") W x 131.5 mm 5.18") D x 46.0 mm (1.81") H 3-pin XLRM-type (on tube microphone powering unit)

7.6 m (24.9') cable with 6-pin XLR-type connectors for use between microphone and tube microphone powering unit; AC power cable AT8560a tube microphone powering unit; AT8447 shock mount for 5/8"-27 threaded stands; rack-mount adapters for tube microphone powering unit; protective mic carrying case

frequency response: 20–20,000 Hz

10 dB

100

12" or more on axis

330˚

200

Frequency in Hertz

0˚

180˚

500

30˚

150˚

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