Download pdf - brochure1 (Page 1) - coutant.org · Figures 1 through 16. Switch position 1 yields the ﬂattest frequency response of all the positions to give a clean, uncolored representation

The Electro-Voice Model RE38N/D is aprofessional quality dynamic cardioidmicrophone designed especially forrecording, broadcast and sound reinforce-ment applications requiring smoothtailorable response over a wide frequencyrange. The extended high frequencyresponse and the 16-position equalizationswitch give the RE38N/D great flexibilityin obtaining the appropriate sound for anysituation. For those applications thatrequire a deeper sound, the microphonehas bass-boosting “proximity effect” whenused up close. The amount of this “prox-imity effect” can be reduced by adjustingthe equalization switch as shown on thefrequency response curves. The “bright-ness” of the high frequency response isalso adjustable with the equalizationswitch.

The RE38N/D incorporates a revolutionaryneodymium alloy magnet to provide highsensitivity. Combined with the inherentlow noise of a dynamic transducer, the highsensitivity ensures a superior signal-to-noise ratio ready for digital recording andsampling. To further reduce noise, themicrophone uses a humbucking coil toattenuate from lighting and other sources.The RE38N/D utilizes DynaDamp™, an

advanced vibration-isolation material, sothat a large external shockmount is notrequired for studio use. DynaDamp™ is aunique foamed elastomer, specially formu-lated for vibration control.

The dynamic element of the RE38N/Dprovides reliable operation in humidity andtemperature extremes. An Acoustifoam™pop filter reduces both wind noise and “P-pop” breath sounds. The microphonefeatures a rugged machined aluminum caseand Memraflex™ grille screen designedto withstand all the rigors of professionaluse.

To solve the problem of microphone place-ment the RE38N/D features a pivotingyoke configuration. With the uniquepivoting yoke, the microphone can beeasily adjusted to position the front towardthe sound source. The yoke positions aredetented to assure the microphone doesn’tshift during usage. This adjustment optionin combination with the stand adapterprovides a highly flexible mountingsystem.

The cardioid polar pattern of the RE38N/Dprovides excellent isolation at all frequen-cies. The directional control is smooth intransition from front to back to keep off-axis coloration to a minimum.

The graphic pictorials on the RE38N/Dnameplate provide an approximation of the16 possible far-field (distant) frequencyresponses which may be selected. Thisflexibility allows the user to obtain adesired sound character in almost any situ-ation right at the microphone. There areeight low frequency tailoring combinationsand two high frequency combinations toyield a total of 16 possible frequencyresponses built into the RE38N/D. Withthese options, the user can compensate forproximity effect, low frequency noise andsibilance to get that “right sound.” Thecontrol is easy to adjust with a small screw-driver (provided) yet cannot be acciden-tally changed during use.

Experimentation is encouraged with theequalization positions to get the perfor-mance best for your application. To aid indetermining the frequency response whichis right for your application, the typicalresponses for the positions are shown inFigures 1 through 16.

Switch position 1 yields the flattestfrequency response of all the positions togive a clean, uncolored representation ofthe input sound for signals in the far field.

Description Using the Equalization Adjustments

RE38N/DDynamic CardioidMicrophone• Exclusive 16-position

equalization switch• Flexible yoke for optimum

positioning• Large diaphragm for extended

frequency response• High sensitivity Neodymium®

N/DYM® element

RE38N/D Dynamic Cardioid Microphone

The far field response shown is the outputwhen the sound source is at least 24 inchesfrom the microphone grille. The lowfrequency response increases due to “prox-imity effect” when the sound source is lessthan 24 inches from the microphone. Thislow frequency response will continue toincrease as the sound source moves closerto the microphone. The amount of “prox-imity effect” in the output of the micro-phone can be controlled by placing themicrophone at different distances from thesound source and with the equalizationchoices provided in the RE38N/D. Posi-tions 9 through 16 have the same lowfrequency shape as the respective positions1 through 8, the difference being that highend response is “bright” in positions 9through 16.

Architects’ and Engineers’Specifications

The microphone shall be a dynamiccardioid type with a wide uniformfrequency response from 70 to 20,000 Hz.The microphone shall have bass-boosting“proximity effect” when used up close andan easy to adjust equalization switchpermitting the selection of 16 differentfrequency response adjustments.

The open circuit voltage sensitivity shall be2.5 mV/Pascal at 1000 Hz and the powerlevel sensitivity shall be –53 dB at 1000 Hzwhere 0 dB equals 1 mW/Pascal. Themagnetic circuit shall be a nonweldedcircuit and employ a neodymium alloymagnet. The transducer shall employ ahum-buck coil with a resulting hum sensi-tivity of –135 dBm at 60 Hz in a 1 milli-œrsted field and a shield to prevent dust andiron particles from reaching the diaphragm.Rated impedance shall be 150 ohms. Lineshall be balanced to ground and phased. Pin2 shall have a positive voltage with refer-ence to Pin 3 with positive pressure on thediaphragm.

The microphone shall be supplied with aMemraflex™ grille screen, pop filter andan exceptional shock isolation systemusing DynaDamp™, an advanced foamelastomer formulated for vibration control.Response at any angular position awayfrom the major axis shall be essentially

similar to the response on the major axis,except attenuated uniformly at all frequen-cies by an amount appropriate to thatangular position. Polar characteristics shallbe sufficiently uniform in all planes so thatit is, effectively, a cardioid of revolution.

Case material shall be aluminum and steel.The microphone shall have a uniquepivoting yoke, detented to hold a set posi-tion, and a stand adapter, to provide ahighly flexible mounting system. Themicrophone shall have a maximum heightof 122 mm (4.8 in.), length of 89 mm (3.5in.), width of 109 mm (4.3 in.) and a netweight of 380 grams (13.4 oz). The finishshall be a non-reflecting satin nickel. Themicrophone shall have a built-in cableconnector insert similar or equivalent to aSwitchcraft QG3M. Accessories shallinclude an 81715 stand adapter, carryingcase and 3/32 inch screwdriver.

The Electro-Voice RE38N/D is specified.

Limited Warranty

Electro-Voice products are guaranteedagainst malfunction due to defects in mate-rials or workmanship for a specified period,as noted in the individual product-linestatement(s) below, or in the individualproduct data sheet or owner’s manual,beginning with the date of originalpurchase. If such malfunction occursduring the specified period, the productwill be repaired or replaced (at our option)without charge. The product will bereturned to the customer prepaid. Exclu-sions and Limitations: The LimitedWarranty does not apply to: (a) exteriorfinish or appearance; (b) certain specificitems described in the individual product-line statement(s) below, or in the individualproduct data sheet or owner’s manual; (c)malfunction resulting from use or operationof the product other than as specified in theproduct data sheet or owner’s manual; (d)malfunction resulting from misuse or abuseof the product; or (e) malfunction occurringat any time after repairs have been made tothe product by anyone other than Electro-Voice Service or any of its authorizedservice representatives. ObtainingWarranty Service: To obtain warrantyservice, a customer must deliver theproduct, prepaid, to Electro-Voice Service

or any of its authorized service represen-tatives together with proof of purchase ofthe product in the form of a bill of sale orreceipted invoice. A list of authorizedservice representatives is available fromElectro-Voice Service at 600 Cecil Street,Buchanan, MI 49107 (800/234-6831 orFAX 616/695-4743).

Incidental and Consequential DamagesExcluded: Product repair or replacementand return to the customer are the onlyremedies provided to the customer.Electro-Voice shall not be liable for anyincidental or consequential damagesincluding, without limitation, injury topersons or property or loss of use. Somestates do not allow the exclusion or limi-tation of incidental or consequentialdamages so the above limitation or exclu-sion may not apply to you.

Other Rights: This warranty gives youspecific legal rights, and you may also haveother rights which vary from state to state.

Electro-Voice Wired Microphones areguaranteed against malfunction from anycause for two (2) years from the date oforiginal purchase. In addition, the LimitedWarranty for the acoustic system containedin these microphones shall apply for the lifeof the product, defined as a period of ten(10) years from the date that the manufac-ture of the specific microphone has beendiscontinued. Any and all active electronicsincorporated in these microphones areguaranteed against malfunction due todefects in materials or workmanship for aperiod of three (3) years from the date oforiginal purchase. The Limited Warrantydoes not extend to cables, cable connectors,or switches. Additional details are includedin the Uniform Limited Warranty state-ment.

For warranty repair or Electro-Voiceservice information, contact the ServiceRepair Department at: 616/695-6831 or800/685-2606.

For technical assistance, contact Electro-Voice Technical Support at 800/234-6831or 616/695-6831, M-F, 8:00 a.m. to 5:00p.m. Eastern Standard Time.

Specifications subject to change withoutnotice.





