Shure manual USING THE KSM141, Mounting the Microphone, Power Requirements, Cable Connections

USING THE KSM141

Mounting the Microphone

To secure the KSM141 to a floor stand or boom, thread the mount onto the microphone stand and insert the microphone into the microphone clip.

Power Requirements

This microphone requires phantom power and performs best with a 48 Vdc supply (IEC-268-15/DIN 45 596). It can operate on voltages as low as 11 Vdc, but headroom and sensitivity will be decreased slightly.

NOTE: Most modern mixers provide phantom power.

Cable Connections

Use a cable with XLR connectors at each end.

Load Impedance

Shure recommends a load impedance of at least 1000 Ω. When used with modern microphone preamplifiers rated at about 2500 Ω, the KSM141 provides higher maximum SPL capability and output clipping level. When the attenuation switch is set to the -25 dB position, it can handle up to 164 dB SPL, and can output +15 dBV into a load of 5000 Ω or greater.

Selecting a Polar Pattern

To select either the cardioid or omnidirectional polar pattern, rotate the knurled ring on the microphone in either direction until you feel a detent. The image of the desired polar pattern should be directly above the notch at the base of the ring.

NOTE: Operating the KSM141 in a non-detent position (no polar pattern selected) will produce an unpredictable polar pattern and may adversely affect frequency response.

Cardioid. When this pattern is selected, the microphone picks up sounds

directly in front of the microphone and is least sensitive to those in back. This is the most commonly used pattern in studio recording and live-sound applications. See Figure 4.

Omnidirectional. Picks up sounds from all directions. This pattern is best for picking up room ambience and for miking several sources, such as an ensemble or multiple singers, simultaneously. The omnidirectional polar pattern exhibits no proximity effect. See Figure 4.

WARNING: Rotating the polar pattern switch produces mechanical noise which, when amplified, may damage the loudspeakers. Turn down any loudspeakers or mute the microphone at the mixing console before changing the polar pattern.

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