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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
denition 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 bafe
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 congured circuit for enhanced tube performance. Specially
tuned elements improve dynamic range and the ability to handle high SPLs
without sacricing 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.
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AT4060a
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Specications
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
1
Typical, A-weighted, using Audio Precision System One.
Specications are subject to change without notice.
professionals on request.
2
= 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.
1
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˚
5k
2k
1k
60˚
120˚
10k
90˚
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
50
LEGEND
polar pattern
300˚
270˚
240˚
210˚
SCALE IS 5 DECIBELS PER DIVISION
Audio-Technica Corporation
audio-technica.com ©2013 Audio-Technica P52482
Response in dB
20k