MX418DC - Microphone SHURE - Free user manual and instructions

USER MANUAL MX418DC SHURE

MX400D Series microphones are miniature electret condenser gooseneck mi- crophones with a desktop base and a 3 m (10 ft.) cable. Desktop base allows microphones to be used in multi-purpose rooms where quick setup is required, or where permanent installation is impractical. Features

• Wide dynamic range and frequency response for accurate sound reproduction

• Interchangeable cartridges that provide a choice of polar pattern for each application

• Programmable mute button and LED indicator

• Logic input and output terminals for remote control or use with automatic microphone mixers

• Balanced, transformerless output for increased immunity to noise over long cable runs

• RF filtering MX400 Series Model Variations MX400 microphones are available with 305 mm (12 in.) or 457 mm (18 in.) goosenecks.

• “S” models include a mute button and LED.

• “D” models include a desktop base with programmable mute button and LED and logic input and output.

• “SE” models feature a surface mount flange with side-exit cable. The polar pattern of the included cartridge is indi- cated by a model number suffix: /C Cardioid /S Supercardioid /N Cartridge not included Interchangeable Cartridges Microflex microphones use interchangeable cartridges that allow you to choose the polar pattern for differ- ent installations. Snap-Fit Windscreen

• Snap into the groove below the cartridge.

• To remove, spread the gap with a screwdriver or thumbnail.

• Provides 30 dB of “pop” protection. Microphone Placement

• Aim the microphone toward the desired source, such as the talker.

• Aim it away from any unwanted source, such as a loudspeaker.

• Place the microphone within 15 to 30cm (6 to 12 in.) of the desired sound source.

• Always use the supplied windscreen or optional metal windscreen to control breath noise.

• If four or more microphones will be open at the same time, use of an automatic mixer, such as the Shure SCM810 or SCM410, is recommended. Securing to a Surface Desktop Microphones R183 Omnidirectional R184 Supercardioid R185 Cardioid 2Connecting to an Automatic Mixer Use these settings if connecting the microphone to an automatic mixer or other device that mutes audio and controls the LED.

1. Connect logic leads to the automatic mixer.

Connect the LED IN to the gate output to illumi- nate the LED when that channel is gated on.

2. Set DIP switch 3 on. This disbles the mute but-

ton (the microphone passes audio regardless of whether the button is pressed or not).

3. Set DIP switch 1 to configure how the mute but-

ton sends SWITCH OUT logic: Logic Wiring Green (LOGIC GROUND): Connects to the logic ground of an automatic mixer, switcher, or other equipment. Orange (LED IN): Set DIP switch 3 on to use LED IN. When shorted to LOGIC GROUND, the LED turns on. White (SWITCH OUT): Provides TTL logic (0 Vdc or 5 Vdc) in response to the mute button. Set DIP switch 1 for momentary or toggle. When phantom power is applied, logic initializes high (5 Vdc). DIP switch 2 has no effect on SWITCH OUT. DIP Switches Use the DIP switches to configure logic settings and mute button behavior. The DIP switches are covered with a piece of clear tape at the factory. Remove tape to modify the switch settings. OFF (factory default)

1 Momentary Toggle 2 Push-to-mute Push-to-talk 3 Mute button enabled, LED illuminates when mic is active Disable mute button (microphone always on), logic controls LED 4 -- -- Changing SWITCH OUT to Always Momentary Use the following modification in situations where your logic interface requires momentary closure of the SWITCH OUT, but you want the mute button to toggle the microphone (DIP switch 1 ON, 3 OFF):

1. Access the circuit board in-

side the microphone base.

2. Remove the resistor at R45

and reinstall it at location R46. Mute Button Configuration Use DIP switches 1 and 2 to configure the mute button, as follows. Be sure to set DIP switch 3 off (factory default) so that the mute button controls audio from the microphone. Switch Function DIP Switch Setting Momentary: push-to-mute (as shipped). Momentary: push-to-talk Toggle: (Push On/Push Off): Mic is active when powered on Toggle: (Push On/Push Off): Mic is mute when powered on Momentary: push = 0 Vdc, release = 5 Vdc Toggle: initial = 5 Vdc, push = 0 Vdc Wiring Diagram NOTE: Audio and logic ground are connected at microphone base. Ground (Green) SWITCH OUT (White) LED IN (Orange) Audio + (Red) Audio – (Black) NOTE: Bottom cover must be closed for microphone to function. 3102.1 mm(4 9/16 in.)50.8 mm(2 1/32 in.)161.9 mm(6 3/8 in.)MX412D: 355.4 mm (14 in.)MX418D: 501.7 mm (19

MX400D Specifications Optional Accessories Foam Ball Windscreen A99WS Metal Locking Windscreen A412MWS Custom Logic Cable (specify length) 95B2509 Furnished Accessories Snap-fit Foam Windscreen (1 fur- nished, 4 in replacement kit) RK412WS Replacement Parts Omnidirectional Cartridge (Black) R183B Supercardioid Cartridge (Black) R184B Cardioid Cartridge (Black) R185B CERTIFICATION Eligible to bear CE Marking. Conforms to European EMC Directive 2004/108/EC. Meets Harmonized Standards EN55103-1:1996 and EN55103-2:1996, for residential (E1) and light industrial (E2) environments. The Declaration of Conformity can be obtained from: 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 Email: info@shure.de Type Condenser (electret bias) Frequency Response 50–17000 Hz Polar Pattern MX412D/C, MX418D/C: Cardioid MX412D/S, MX418D/S: Supercardioid Output Impedance EIA Rated at 150 Ω (180 Ω actual) Output Configuration Active balanced Sensitivity (at 1 kHz , open circuit voltage) Cardioid: –34 dBV/Pa (21 mV) Supercardioid: –33 dBV/Pa (24 mV) 1 Pascal=94 dB SPL Maximum SPL (1 kHz at 1% THD, 1 kΩ load) Cardioid: 123 dB Supercardioid: 122 dB Equivalent Output Noise (A-weighted) Cardioid: 29 dB SPL Supercardioid: 28 dB SPL Signal-to-Noise Ratio (referenced at 94 dB SPL at 1 kHz) Cardioid: 65 dB Supercardioid: 66 dB Dynamic Range (1 kΩ load at 1 kHz) 94 dB Common Mode Rejection (10 Hz to 100 kHz) 45 dB minimum Preamplifier Output Clipping Level (1% THD) –6 dBV (0.5 V) Polarity Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of output XLR connector. Net Weight MX412D: 0.81 kg (1.80 lbs) MX418D: 0.82 kg (1.82 lbs) Packaged Weight MX412D: 1.63 kg (3.62 lbs) MX412D: 1.64 kg (3.64 lbs) Logic Connections LED IN: Active low (≤1.0V), TTL compatible. Absolute maximum voltage: -0.7V to 50V. LOGIC OUT: Active low (≤1.0V), sinks up to 20mA, TTL compatible. Absolute maximum voltage: -0.7V to 50V (up to 50V through 3kΩ). Mute Switch Attenuation –50 dB minimum Cable 3 m (10 ft) attached cable with shielded audio pair terminated at a 3-pin male XLR and three unterminated conductors for logic control Environmental Conditions Operating Temperature: -18–57 °C (0–135 °F) Storage Temperature: -29–74 °C (-20–165 °F) Relative Humidity: 0–95% Power Requirements 11–52 Vdc phantom, 2.0 mA 4MX400D /C (R185) /S (R184) Les Microflex

MX412D: 1.63 kg (3.62 lbs) MX412D: 1.64 kg (3.64 lbs)

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