Shure PGA27 User Manual

ALT TMA SERIES

WIRED MICROPHONE

PGA27 USER GUIDE

PGA27

USB

XLR

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.

General Rules for Use

• Do not cover any part of the microphone grille with your hand, as this will adversely affect microphone performance.

• 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

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.

• 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.

• Add a windscreen when using the microphone outdoors.

• Avoid excessive handling to minimize pickup of mechanical noise and vibration.

Computer

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.

Connecting to a computer using the Shure MVi audio interface

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.

Operation

Positioning the Microphone

The front of the microphone is marked by the logo. Position this side toward the sound source.

Mounting the Microphone

Use the supplied shockmount to mount the microphone. To secure the microphone, place it in the shockmount and tighten the ring at the bottom.

Proximity Effect

Directional microphones progressively boost bass frequencies as the microphone is placed in closer proximity to the source. This phenomenon, known as proximity effect, can be used to create a warmer, more powerful sound.

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