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CM15P
CM20P
M eruC t a idniioG idra enesoo Ck
Puido M Mi Cor P senoh
A U D I O
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Table Of Contents Introduction 1 CM15P and CM20P Features 2 Using the CM15P and CM20P 3-4 Powering the CM15P and CM20P 3 Microphone Placement and Positioning 3-4 CM15P and CM20P Polar Pattern 5 CM15P and CM20P Frequency Response 6 CM15P and CM20P Specifications 7 Copyright 2005 -2007, Samson Technologies Corp. Printed February. 2007 v1.1 Samson Technologies Corp. 45 Gilpin Avenue Hauppauge, New York 11788 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 631-784-2201 www.samsontech.com
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Introduction Thank you for purchasing the CM15P or CM20P podium microphone from Samson Audio! The CM15 and CM20P miniature gooseneck microphones are 15" and 20" in overall length respectively, and the goosenecks are flexible at the top and bottom with a mid-section stiffener for a straight profile. They feature a permanently charged condenser element with a Cardioid (uni-directional) pick-up pattern, providing good off axis response while maintaining high feedback rejection. The CM15 and CM
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CM15P and CM20P Features The Samson CM15P and CM20P utilize state-of-the-art microphone technology and are engineered to the finest detail. Here are some of their main features: • CM20P: 20" overall length; CM15P" 15" overall length • Flexible gooseneck top and bottom, rigid mid-section • Internal selectable Hi-pass filter • Standard XLR connector • FMS1 Standard Flange-mount included • WS15 Multistage windscreen included • 9 – 52 Volt Phantom Power Operation 2
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Using the CM15P and CM20P Powering the CM15P and CM20P The CM15P and CM20P are condenser microphones and therefore need to be operated by connecting a phantom power supply. Phantom power is standard on most quality mixers. If necessary, an external phantom supply, like the Samson S phantom, can also be used. The CM15P and CM20P receive the phantom power directly from a mic connector or cable when connected to a mixer that includes a phantom supply. The power is sent OUT of the micro- phone I
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Using the CM15P and CM20P Microphone Placement and Positioning - continued microphones, exhibit a phenomenon known as “proximity effect.” Very simply put, proximity effect is a resulting change in the frequency response of a microphone based on the position of the mic capsule relative to the sound source. Generally, you will get a bass boost when miking in close. When you point a cardioid mic directly at the sound source (on axis) you will get the best frequency response, however, when you st
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CM15P and CM20P Polar Pattern Every microphone has a characteristic polar pattern that determines how well it accepts or rejects signal coming from various areas around the microphone. For example, omnidirectional mics accept all signals regardless of where those signals originate (in front of the mic, behind it, to the side, etc.). In contrast, directional cardioid mics are specifically designed to accept mostly signal coming from directly in front, and to reject signal coming from behind or
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CM15P and CM20P Frequency Response 6
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CM15P and CM20P Specifications Specifications Element Type Fixed-charge condenser Polar Pattern Cardioid (Uni-directional) Frequency response 60 - 16000Hz Sensitivity -40dB/Pa Rated impedance 600 ohms SPL 127dB Dynamic range 103dB S/N ratio 70dB Power Supply 9~52V phantom supply Power consumption 4mA 7
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Samson Technologies Corp. • 45 Gilpin Ave • Hauppauge, NY 11778 Phone: 1-800-3-SAMSON (1-800-372-6766) • Fax: 516-784-2200 service@samsontech.com • www.samsontech.com
