Electro-Voice N/D957 User's Manual
Contents
1. 1 000 Hz 52 dB 0 dB mW pascal MICROPHONES N D M ew ae Dynamic Range 142 dB Equivalent Output Noise i dB 0 dB 00002 pascal Impedance measured at 1 000 Hz Rated 600 ohms balanced low Z Case Grille Steel Memraflex Inner Handle Aluminum Sleeve Elastomeric Eleclroloice 600 Cecil Street Buchanan MI 49107 616 695 6831 616 695 1304 Fax Accessories Included Warm Grip handle 3238 stand clamp Carrying case Dimensions Length 173 mm 6 80 in Diameter 52 mm 2 05 Shank in 20 mm 0 80 tn Finish Nonrellecting Net Weight 205 9 7 23 2 Shipping Weigh 600 1 32 Ih black tU Fair Nune2. FleciOV0iCC mma N D957 N DYM Dynamic Supercardioid Vocal Microphone Washable and disinfectable grille screen EV exclusive personality switch Highest gain before feedback Response optimized for live vocal use Elastomeric shock mount for low mechanical noise EV exclusive Warm Grip handle Description The Electro Voice N D957 is supercardioid dynamic microphone ideally suited lor vocal usage in live sound reproduction for large and small concert sound venues The charac terisiies of the N D957 have been optimized to dramatically reduce feedback under live perlormanee conditions particularis wath typical monitor speaker placements ensunng superior gauin belore teedbavk The N D957 utilizes a revolutionary neodymium alloy to form the EV exclusive N DYM With a computer optimized design the magnet N DYM magnetic structure is maximized in the N D957 to provide unprecedented output sensitivity over conventional dynamic designs The exceptional sensitivity of the N D937 combined with the inherently low noise of a dynamic transducer insures supe rior signal to noise which ts ideal for digi tal recording and sampling To further re duce notse a highly effective hum bucking coil is used to cancel hum trom lighting and other power sources The N DYM with a reintorced diaphragm design forms a magnet geomet combined smooth extended trequenes response with a warm open transparent se
3. creen and two stage pop filter to reduce wind blast noise problem especially troublesome where extended response wooler systems are used Within the grille screen is stanless steel retainer which holds the hy gieme pop filter in position for reducing explosive wind blasts The stainless steel retainer and hygienic pop filter makes cleaning and disinfecting the grille screen a simple task desirable for on the road use where stage makeup and perspiration often enter the mi crophone The N D957 has a broadband supercardioid polar pattern Compared to the more tradi tional heart shaped cardio pattern a supercardioid pattern rejects more sound at the sides and rear overall The N D957 also features improvements to the transducer that Increase sensitivity and provide an extremely uniform polar pattern throughout the vocal Irequenes range These eharacteristtes tend to reduce feedback under live pertormance conditions particularly with ty pical monitor speaker placements ensuring superior gain belore feedback in live applications N D957 Dynamic Supercardioid Vocal Microphone In fA BLS teow AS Bi er tee oe Bal cet iga lej amVere ibhalielge e ale ai The dynamic element of the N D957 provides reliable operation in humidity and tempera lure extremes The metal handle ts covered with the unique Warm Grip handle This design provides the strength light weight and comlort wanted lor on stage handheld us age The Memra
4. ertificate of Perlormanee and included with the microphone Certified performance response may vary from published Average Response This certificate guarantees that each N D957 will perform to the exacting standards established by EV design engineers 100 quality assurance testing Limited Warranty Electra Voice products are guaranteed against malfunction due to defects in mate rials or workmanship for a specified period as noted in the individual product line statement s below orin the individual prod uct data sheet or owner s manual beginning with the date of original purchase It such malfunction occurs during the specified pe riod the product will be repaired or replaced at our option without charge The product will he returned to the customer prepaid Ex clusions and Limitations The Limited War ram y does not apply to a exterior finish or appearance b certain specific items de scribed in the individual product line statements below or in the individual prod uct data sheet or owner s manual c mal function resulting from use or operation of the product other than as specilied in the product data sheet or owner s manual d mallunction resulting rom misuse or abuse of the product or e malfunction occurring at any time after repairs have been made to the product by anyone other than EVI Au dio Service or any of its authorized service representatives Obtaining Warranty Ser vice To obtai
5. n warranty service a customer must deliver the product prepaid to EVI Au dio Service or any of its authorized service representatives together with proof of pur chase of the product in the form of a bill of sale or receipted invoice A list ot authorized service representatives is available from EVI Audio Service at 600 Cecil Street Buchanan MI 49107 800 234 6831 or FAX 616 695 4743 Damages Excluded Product repair or re Incidental and Consequential placement and return to the customer are the only remedies provided to the customer Electro Voice shall not he liable for any in cidental or consequential damages includ ing without limitation injury to persons or property or loss Of use Some states do not allow the exclusion or limitauon 01 inciden tal or consequential damages so the above limitation or exclusion may not apply to vou Other Rights This warranty gives vou spe cifie legal rights and you may also have other rights which vary trom state to state Electro Voice Wired Microphones arc guaranteed against malfunction from ans cause fortwo 2 years from the dite ol origi nal purchase In addition the Limited War ranty or the acoustic system contained in these microphones shall apply for the life of the product defined as a period of ten 10 years from the date that the manutacture of the specific microphone has been discontin ued Any and all active electronics incorpo rated in these microphones are g
6. tlex grille sereen is made Irom a specially hardened material to resist damage This all metul core construction will provide years of trouble free on the road operation The excepuional sensitivity of the N D957 combined with the inherently low noise ol dynamic transducer ensures i superior signal to noise ratio ready lor high dynamic range sound systems Operation The switch selected response of the N D957 allows the user the option of adding more The normal position provides a slightly rising presence to the sound when needed response When the microphone ts positioned further than 12 inches from the sound source The low frequency response can be extended by positioning the microphone closer to the sound source This proximity effect occurs when the microphone is placed less than 12 inches from the sound source and The presence position reduces the mid Erequeney Increases as the distanee is reduced response to improve clarity when the micro phorz is used very close to the sound source where the proximity effect can overwhelm the output Certified Performace E Every N D957 is inspected by a quality control tester and subjected t0 computer controlled test svstem that verifies mans different performance parameters Alter the perlormanee Meets or exceeds Our rigorous standards the actual measured frequenes response of the unit tested ts plotted on C
7. uaranteed against malfunction due to delects in mate nals or workmanship for a period ol three 3 years from the date of original purchase The Limited Warranty does not extend to cables cable connectors or switches Addi tional details are included im the Unilorm Limited Warranty statement For technical assistance contact Technical Support at 800 234 6831 or 616 695 6831 M F 8 00 a m to 3 00 p m Eastern Stan dard time Specifications subject to change without notice NY D gt 1s Ww Ma BV atte allem le e1 iee igelle am ele len4leige eislojal Figure I Frequency Response IL 20 230 50 100 200 500 1000 2000 5000 10000 20000 FREQUENCY IN HERTZ a Presence Position 5 Close Response Figure 2 Polar Response Figure 3 Schematic t E 3 e e i FI HUM BUCKING a COIL amp e P M ue z PIN 3 VOICE FS E COIL z ls e S PIN 1 NOTE POSITIVE VOLTAGE ON PIN 2 REFERENCED TO PIN 3 WITH POSITIVE PRESSURE ON DIAPHRAGM CASE GROUND rT T3 SUOYCOIDIV 920A proipie iadins tueu g ZS60 N N D957 Dynamic Supercardioid Vocal Microphone 4191 17 A Dira logitedciUlel igeigalleile Ber u iMi Milo rojo gTelal Specifications Frequency Response see Figure 1 Close Response S0 to 13 000 Hz Far Response 120 to 13 000 Hz Polar Pattern see Figure 2 Supereardioid Sensitivity Open Circuit Voltage 4 0 mV pascal 1 000 Hz Power Level measured at
8. urnd quality only found in sali qual microphones a i The N D957 microphone features an ad vanced version of the AcousuDYM shock mount system This unique vibration iso lation system works as a multistage device At low frequencies a rear sound wave cancels the diaphragm motion while at high frequen cies the specially designed rubber shock mount isolates the transducer from motion To work optimally in congcert sound appli cations the AcoustiDY M M shock mount ts tuned to a low resonant frequency A custom transformer limits the low frequency response and adjusts the impedance This combination has been matched to preserve the accurate reproduction of the voice range Combining Acousti DYM M custom transformer the elastomeric Warm Grip handle and windscreen bumper an advanced technol ogy vibration rsolation svstem is formed which dramaticalls reduces all forms of han dling noise for the most demanding situa Hons The N D957 has a unique personality switch to fit the demands of live sound In tlie nor mal position the microphone exhibits avers smooth slightly rising response This pro vides a fuller sound and is preterred where the microphone ts used several inches from the fips In the presence position the mid Trequencies are shightls attenuated This gives the microphone more cut when used with high level monitors or when used in a lips touching the screen fashion The microphone has a washable grille s
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