SR20 User`s Manual
Contents
1. anes 8k Fig 4 Polar Response Typical of SR202. rejec tion of sounds arriving off axis The SR20 1s protected by US Patent No 6 091 829 Applications Earthworks SR20 is easy to operate Connect the microphone to a microphone preampli fier supplying 48V phantom power using a standard XLR microphone cable Please al low up to one minute for the microphone to settle Plugging in the microphone hot phantom power already present at the in put will not damage the microphone and 1s actually preferred for faster settling It is nor mal for any phantom powered mic to pop when plugged in or powered up Make sure to mute the signal to speakers or headphones when phantom power is first applied The SR20 is designed for vocals and incorporates a screw on windscreen It will accurately capture a voice with the same precision up to 90 off axis This means the same pristine sound quality is available at the front and side of the microphone Up close the SR20 is warm not boomy while its unique windscreen assembly eliminates the popping of P s Its uniform polar response will pro vide more gain before feedback than other mics Make sure to bring the mixer s gain down before plugging the SR20 in for the first time as it has much higher output than Version 5 March 7 2013 dynamic mics To remove the windscreen un screw it from the main body Never use force Without the windscreen the SR20 becomes a versatile instrument mic outstanding for pia no gui
3. Technical Support Should you have any questions regarding your SR20 microphone please contact us e mail Support earthworksaudio com phone 603 654 2433 ext 119 9am 5pm ET For warranty and product return exchange information please refer to the back of the enclosed Calibration Chart FIFTEEN YEAR WARRANTY All Earthworks products excluding acces sories carry a fifteen year limited warranty parts and labor If you have any problems with your Earthworks products please con tact our warranty repair department by email at returns earthworksaudio com or by tele phone at 603 654 2433 Ext 119 Earthworks HIGH DEFINITION MICROPHONES Earthworks Inc 37 Wilton Rd Milford NH 03055 USA Phone 1 603 654 2433 ext 114 Fax 1 603 654 6107 earthworksaudio com Made in U S A Printed in U S A Earthworks HIGH DEFINITION MICROPHONES User s Manual HDM tice DEFINITION micRoPHONes Description Earthworks SR20 is a directional pre polar ized condenser microphone with a first or der cardioid pickup pattern directly coupled to a dedicated wideband low output imped ance transformerless preamplifier The SR20 requires a standard 48V Phantom Power sup ply It features a flat frequency response from 50Hz to 20kHz Fig 2 fast impulse response Fig 3 very low handling noise uniform polar pattern and high SPL handling capa bilities It provides excellent uncolored
4. tar drums bass woodwinds and other instruments A mounting clip and a screw on windscreen are included with the microphone Care of Microphones Earthworks SR20 microphone is a precision instrument designed and built to provide years of top performance Following these simple rules will help to protect your investment in the SR20 e Avoid touching the front protective screen e Never attempt to disassemble the micro phone it cannot be opened e Avoid extreme heat and condensing hu midity Allow the microphone to warm up in the case when bringing it in from the cold weather e Rough handling may damage the micro phone even if no visible marks are left e When not in use keep the SR20 in its case Specifications Frequency response 50Hz to 20kHz 2dB at 1 foot 30cm Polar Pattern Cardioid Fig 4 Sensitivity 10mV Pa 40dBV Pa Power Requirements 48V Phantom 10mA Peak Acoustic Input 145dB SPL Output XLR 3 Fig 1 Output Impedance 100Q balanced 50Q ea pin 2 amp 3 Minimum Load 600Q btw pins 2 amp 3 Noise 22dBA equivalent Dimensions Lx D 35lb 212 x 22 mm Weight 3lb 135g Compliant Specifications are subject to change without notice Pin 1 an aN e a 2 0 100 200 300 400 500 600 Time in micro seconds uSec Fig 3 Impulse Response Typical of SR20 2k cates ale
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