Shure Microphone PGA181 User Manual

TM  
PG ALTA SERIES  
WIRED MICROPHONE  
PGA181  
USER GUIDE  
© 2015 Shure Incorporated  
27A27346 (Rev. 3)  
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PGA181  
PG Alta Microphones  
Congratulations on the purchase of a new Shure PG Alta  
series microphone. The PG Alta series delivers professional  
quality audio at an affordable price, with solutions for  
capturing nearly any source, including voice, acoustic  
instruments, drums, and amplified electric instruments.  
Suitable for live and studio applications, PG Alta microphones  
are built to last, and meet the same rigorous quality testing  
standards that make all Shure products trustworthy and  
reliable.  
• Place the microphone as close as practical to the desired  
sound source.  
• Work close to the microphone for extra bass response.  
• Use only one microphone to pick up a single sound source.  
• For better gain before feedback, use fewer microphones.  
• Keep the distance between microphones at least three  
times the distance from each microphone to its source  
(“three to one rule”).  
• Place microphones as far as possible from reflective  
surfaces.  
General Rules for Use  
• Add a windscreen when using the microphone outdoors.  
• Do not cover any part of the microphone grille with your  
hand, as this will adversely affect microphone performance.  
• Avoid excessive handling to minimize pickup of mechanical  
noise and vibration.  
• Aim the microphone toward the desired sound source  
(such as the talker, singer, or instrument) and away from  
unwanted sources.  
Connecting to a Mixer or Computer  
Cables  
Computer  
Use only balanced (three-conductor) cables. Otherwise,  
the cable will not carry phantom power to the microphone.  
If using an adapter for 6.5mm (1/4") inputs, it must have  
tip-ring-sleeve (TRS) contacts.  
To deliver audio directly to a computer, use a USB audio  
interface with an XLR microphone input that provides  
+48V phantom power, such as the Shure MVi.  
USB  
XLR  
Connecting to a computer using the Shure MVi audio interface  
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Mixer  
When connecting to a mixer, use only balanced, microphone-level inputs with phantom power. Most mixers have a switch  
for phantom power, so make sure phantom power is on for that channel.  
Phantom Power  
All condenser microphones require phantom power to operate. This microphone performs best with a 48 V DC supply (IEC-  
61938), but it can operate with lower voltages.  
Phantom power is provided by the mixer or audio interface that the microphone is connected to, and requires the use of a  
balanced microphone cable: XLR-to-XLR or XLR-to-TRS. In most cases, there is a switch or button to activate the phantom  
power. See the user guide for the mixer or interface for additional information.  
Positioning the Microphone  
The front of the microphone is marked by several indicators:  
four screws around the grille, the cardioid logo, and the  
PGA181 model number. Position this side toward the sound  
source.  
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Applications  
The following table provides a basic starting point for several instruments. Shure offers additional educational publications on  
Application  
Distance from source  
Tips  
Voice  
1-3 inches (2-8 cm)  
Use a pop filter (Shure PS-6) to prevent  
plosives.  
Acoustic guitar  
Drums  
6-12 inches (15-30 cm)  
3-6 feet (1-2 m)  
Place near the sound hole for a full sound,  
or near the 12th fret for a balanced, natural  
sound.  
Place in front of the drum kit to capture more  
of the kick drum, or as an overhead (above  
the kit, facing down) to capture more cymbals.  
Consider using additional Shure microphones  
placed on individual drums for more mixing  
flexibility and a thicker sound.  
Amplifiers  
1-6 inches (2-15 cm)  
1-6 feet (30 cm - 2 m)  
Aim towards the center of the speaker for a  
clear, aggressive sound, or towards the edge  
of the speaker for a mellow sound.  
Strings or horns  
For a single instrument, place the microphone  
close to the source. For a horn or string  
section, arrange players at an equal distance  
from the microphone.  
Full band  
3-10 feet (1-3 m)  
Face the microphone towards the group,  
centered between instruments.  
Tip: Close microphone placement results in a full sound due to the proximity effect. Placing the microphone farther from the  
source results in more room ambience.  
Optional Accessories and Replacement Parts  
7.6 m (25 ft.) Cable (XLR-XLR)  
5/8" to 3/8" Thread Adapter  
4.6 m (15 ft.) Cable (XLR-XLR)  
Wireless Microphone Clip  
C25J  
31A1856  
95D2153  
WA371  
PS-6  
Popper Stopper® Pop Filter with Metal Gooseneck and  
Microphone Stand Clamp  
Foam Windscreen for all larger Shure "ball-type" Microphones A58WS  
available in black, blue, gray, green, red and yellow  
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Specifications  
Type  
138 dB SPL  
Polarity  
Electret Condenser  
Polar Pattern  
Positive pressure on diaphragm produces positive voltage on pin 2  
with respect to pin 3  
Cardioid  
Connector  
Frequency Response  
Three-pin professional audio (XLR), male  
50 to 20,000 Hz  
Weight  
Output Impedance  
383 g (0.8 lbs)  
at 1 kHz, open circuit voltage  
Housing  
120 Ω, actual  
Cast Zinc  
Sensitivity  
Power Requirements  
at 1 kHz, open circuit voltage  
48 V DC phantom power (4 mA)  
[1] 1 Pa=94 dB SPL  
-38 dBV/Pa [1] (12.7 mV)  
Maximum SPL  
1 kHz at 1% THD, 1 kΩ load  
20  
15  
0,61 m (2 ft.) from sound source  
10  
5
0
-5  
-10  
-15  
-20  
-25  
-30  
20  
100  
1k  
10k  
20k  
Hz  
Frequency Response  
1,000 Hz  
Polar Pattern  
Certifications  
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.  
Authorized European representative:  
Shure Europe GmbH  
Headquarters Europe, Middle East & Africa  
Department: EMEA Approval  
Jakob-Dieffenbacher-Str. 12  
75031 Eppingen, Germany  
Phone: 49-7262-92 49 0  
Fax: 49-7262-92 49 11 4  
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40 mm width  
(1.57 in.)  
52.6 mm diameter (2.07 in.)  
150.4 mm (5.92 in.)  
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Europe, Middle East, Africa:  
PT. GOSHEN SWARA INDONESIA  
Kompleks Harco Mangga Dua Blok L No. 35 Jakarta Pusat  
I.16.GSI31.00501.0211  
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