User Manual
Remote-powered Cardioid Condenser Quick-mount Gooseneck Microphone PRO 91Q
■Description
■Operation and Maintenance
■Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
■Specifications
Element Fixed-charge back plate, permanently polarized condenser
Polar pattern Cardioid (Unidirectional)
Frequency response 70-16,500 Hz
Open circuit sensitivity -37.5 dB (13.8 mV) re 1V at 1 Pa
Impedance 100 ohms
Maximum input sound level 135 dB SPL (1 kHz at 1% THD)
Dynamic range (typical) 107 dB (1 kHz at Max SPL)
Signal-to-noise ratio* 66 dB (1 kHz at 1 Pa)
Phantom power requirements 11-52 V DC, 2 mA typical
Weight 98 g
Dimensions 12.0 mm head diameter,
421.0 mm long
Output connector Integral 3-pin XLRM-type
Included accessories AT8146 foam windscreen
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern
■Frequency response
■Dimensions
180°
150°
120°
90°
60°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k 10k 100k10010
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
27-APR-2017 Form No.ATGC-L0344-17
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
(Unit: mm)
Thank you for purchasing this product. Before using the product, read
through the user manual to ensure that you will use the product correctly.
Please keep this manual for future reference.
The PRO 91Q is a wide-range condenser microphone with a cardioid
(unidirectional) polar pattern. It was designed for high-quality sound
reinforcementand other demanding sound pickup situations.
The PRO 91Q features an XLRM-type connector insert at its base, allowing
it to be plugged directly into an XLRF-type jack or cable connector. The
unit’s integral electronics can be powered from any external 11V to 52V DC
phantom power source.
The small-diameter gooseneck is very easy to manipulate for proper
positioning. It is heavily lubricated to offer very smooth and quiet operation.
The microphone element is enclosed in a rugged housing with a low-reflec-
tance black finish.
Output is low impedance balanced. The output connector mates with
XLRF-type 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.
DC phantom power (11-52 volts) must be applied equally to Pins 2 and 3,
with the ground for the power supply connected to Pin 1. This can be
provided by a console or mixer with built-in phantom voltage or with the
addition of an in-line phantom power supply.
The high sensitivity of the PRO 91Q ensures useful output and an excellent
match to most mixer, type recorder and amplifier inputs. It will provide
undistorted output even in sound fields as loud as 135 dB SPL. However,
due to the high sensitivity, in some instances it may be possible to overload
sensitive input stages.
While a modern condenser microphone is not unduly sensitive to the
environment, temperature extremes can be harmful. Exposure to high
temperatures can be result in gradual and permanent reduction of the
output level. Avoid leaving the microphone in the open sun or in areas
where temperatures exceed 43°C for long periods of time. Extremely high
humidity should also be avoided.
Connect the output terminals of the microphone to a device that has a
microphone input (balanced input) compatible with a phantom power supply.
The output connector is an XLRM-type with polarity as shown in the figure
below.
For product improvement, the product is sublect to modification without notice.
10
0
-10
-20
-30
20
421.0
44.8
18.9
56.9
12.0
