Crown CM-311AESH Headset Wired for Shure  

Item #: 
127474165293916658
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Designed for touring and live-sound applications, the Crown CM-311AESH is a rugged head-worn microphone with unequaled performance. It sounds like the best handheld microphones ” full, clear, and dist... Read More

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Overview

Designed for touring and live-sound applications, the Crown CM-311AESH is a rugged head-worn microphone with unequaled performance. It sounds like the best handheld microphones ” full, clear, and distortion-free, even with the loudest singers.

The CM-311AESH is the latest version of Crown's proprietary Differoid technology. Its cardioid pickup pattern rejects sounds from the rear, such as floor monitors. Its noise-canceling ability rejects sounds at a distance, such as instruments on stage and crowd noise. This results in the CM-311AESH having outstanding gain-before-feedback and isolation.

Lightweight and comfortable, the mic's headband and boom adjust to fit any singer. An included pop filter greatly reduces breath noise and pops. Because of the boom's unique behind-the-ear design, it does not cover up the singer's face.

NOTE: Putting an XLR connector on the CM-311AESH and connecting to a mic input with phantom power WILL damage the mic element.

Consumer Alert:

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCCs wireless microphone website at: www.fcc.gov/cgb/wirelessmicrophones.

Features
  • Full, clear, distortion-free sound
  • Outstanding gain-before-feedback and isolation
  • Connects to most wireless transmitters
Specifications
  • Transducer type: Electret condenser.
    Frequency response (typical): 50 Hz to 17,000 Hz
    Polar pattern: Cardioid
    Impedance: 6 kilohms unbalanced.
    Recommended load impedance: 10 kilohms
    Open-circuit sensitivity, typical, close-talking: CM-311AE, 1.25 mV/Pa (”58 dB re 1V/Pa).
    Power sensitivity, typical, close-talking: ”71.5 dB re 1 mW/Pa.
    Equivalent noise level (self noise): 26 dB SPL typical (0 dB = 0.0002 dyne/cm2), A-weighted.
    S/N ratio: 68 dB at 94 dB SPL.
    Maximum SPL: 140 dB SPL with 3V DC, 148 dB
    SPL with 9V DC.
    Operating voltage: 3”9V DC from the transmitter's battery.
    Polarity: Positive pressure on diaphragm produces positive voltage on shield with respect to white lead.
    Current drain: 0.27 mA nominal.
    Off-attenuation: 70 dB.
    Output connectors: supply your own to match your transmitter.
    Cable: In-line with this cable is a small circuit module that equalizes the microphone signal. Cable is 42-inches (106.68 cm) long from headband to module, 12-inches (30.48 cm) from module to cable end. 2-conductor shielded unbalanced cable, un-terminated.
    Materials: High-impact plastic mic housing, brass boom, steel wire headband
    Net weight: Head-worn mic, 2.1 oz (61 g)
    Dimensions: Headband 5.5-in. (13.97 cm) diameter, adjustable. Boom approximately 7 in. (17.78 cm) x 3 in. (7.62 cm). See Figs. 3 and 4.
    Included accessories: Microphone carrying case, WS-6 foam pop filter, clothing clip.


Warranty
MANUFACTURER'S WARRANTY
3 year, no-fault parts and labor warranty on amps.
3 year warranty for most mics.
1 year warranty for Soundgrabber mic.
Crown Extended Warranty available as an option.


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