Electro-Voice Catalog 165

BC-TV-RECORDING MICROPHONES-DYNAMICS

Cardiline™ Unidirectional Microphones

MODEL 642

A highly directional dynamic microphone combining cardioid and distributed front-opening designs. Essentially cardioid unidirectional up to 500 cps; highly directional over balance of range. Working distance is 2 to 3 (or more) times that of conventional types. Excellent for boom use with Model 356 shock mount. Minimum mechanical shock transfer and wind noise interference.

MODEL 643

A highly refined application of the distributed front-opening principle, for more specialized and extended long-range pickup. Provides cardioid pickup pattern to 100 cps and is highly directional over balance of range. Includes integral 3-position switch for selecting flat response or one of two bass tilt-down positions. Integral 100 cps cutoff filter.

Cardioid Unidirectional Microphones

MODEL 666 SUPER CARDIOID

Variable-D® principle for high discrimination against sounds from the back. Permits close talking without bass accentuation. Working distance increased by 1.7:1 over pressure microphones. Single moving element is exclusive, rugged Acoustalloy® diaphragm.

MODEL 666R RISING RESPONSE CARDIOID

Similar to Model 666, but with response which rises 4½ db from 100 to 2,000 cps, reducing pickup of low frequency reverberations, room "rumble" and prop noise. Particularly suited to boom use.

MODEL 665 CARDIOID

Similar in design and function to the Model 666, but for less exacting applications. Uniform response.

MODEL 668

Entirely new Continuously Variable-D® cardioid designed specifically for boom use in broadcasting and recording. Extremely smooth cardioid pattern for maximum reduction of ambient noise and reverberation. Integral windscreen eliminates noise caused by motion of boom-mounted microphone through the air. Built-in equalizer provides choice of four response curves in both high and low frequency ranges.

MODEL 667A

Identical to Model 668 except incorporates selection of three low-frequency and two high-frequency response curves.

Omnidirectional Microphones

MODEL 655C SLIM-TRIM TV DYNAMIC

Frequency response 40 to 20,000 cps. Output level, -58 db. Excellent level affords high signal-to-thermal noise ratio. Can be used on stand, in hand, or on boom. Easily concealed in studio props.

MODEL 654A SLIM-TRIM BROADCAST DYNAMIC

Frequency Response 50 to 16,000 cps. Output level: -57 db. Can be used stand-mounted, hand-held, or as a lavalier. Matches all low impedance inputs.

MODEL 635A BROADCAST DYNAMIC

Completely redesigned and improved omni-directional microphone, perfect for hand and stand use by entertainers and vocalists. Light weight turned steel case is extremely rugged and provides magnetic shielding. Finished in non-reflecting matte satin chrome. Effective four-stage pop and dust filter virtually eliminates need for external wind screen.

MODEL 649B MINIATURE LAVALIER

Smallest dynamic lavalier, weighs only 31 grams without cable. Ideal for programming where unobtrusive or concealed microphone placement is desirable.

"Thin-Trim" Dynamic Microphones

MODEL 652

Almost invisible dynamic microphone. Mounted on the end of a semirigid tube bringing the moving coil element closer to the user for full range, pop-free response. Breath and wind filter is an integral part of the microphone. Two clear plastic baffles provided to give either 8 db or 5 db boost in the brilliance range of 5,000 cps for added articulation. The microphone without baffles gives a smooth response.

MODEL 652A

Same as Model 652, but 15" long.

Sentry Series Studio Monitor Speaker Systems

SENTRY I WALL OR CEILING MODEL

The first loudspeaker system designed specifically for monitor use in recording and broadcast studios. Permits precise monitoring and equalization uncolored by monitor speaker. Extremely wide, flat response allows use as studio reference standard. Precision driver components include 12" Radax loudspeaker, Diffraction Horn high-frequency driver, and special crossover.

SENTRY II FLOOR MODEL

Same specifications as Sentry I. Finished on all four sides to permit vertical or horizontal mounting. Includes protective metal trunk-type corners for portable applications.

GENERAL PURPOSE MICROPHONES

Unidirectional Line Microphone

MODEL 644 SOUND SPOT®

A revolutionary development, the Sound Spot Model 644 is a combination cardioid and distributed front opening instrument, making it the most directional P.A. microphone ever. Offers the farthest front pickup, or better than 2.5 times the working distance of pressure types. Works close or far away without change of frequency response. Cancellation from the rear and sides exceeds 20 db above 700 cps, giving practically complete rejection of unwanted sound. Cardioid below 700 cps. This feature gives extremely high rejection of random noise. Reverberation and feedback are vastly lower than with any other P.A. microphone, allowing much greater leeway in loudspeaker placement. The effective front acceptance angle is 45° each side of center, providing best isolation of individual performers. The Model 644 is 9 db better on the reduction of wind noise and has far less response to shock than most other microphones.

Cardioid Unidirectional Dynamic Microphones

NEW MODEL 676 CARDIOID DYNAMIC

Radically new design brings truly professional quality to public address, recording, communications, and other general purpose microphone applications. Exclusive Continuously-Variable-D® principle assures uniform, symmetrical cardioid pattern at all frequencies. Highest discrimination against feedback and unwanted sound. Exclusive three-position switch offers controlled low-frequency attenuation to overcome rumble and feedback when microphone is used at a distance. Slim design permits full view of person speaking. May be used hand-held or with stand mounting clamp supplied.

MODEL 676A

Non-reflecting Gray finish.

MODEL 676G

Gold finish.

MODEL 664 CARDIOID DYNAMIC

Similar to Model 666 in function, but designed for quality tape recording, communications, and public address applications. Cardioid pattern at all frequencies, with Variable-D® feature. Permits close talking without "booming" or bass accentuation. Provides better discrimination against unwanted sound. Blast filter minimizes wind effect. Acoustalloy® diaphragm shielded from dust and magnetic particles.

MODEL 664A

Non-reflecting Gray finish.

MODEL 664G

Gold finish.

Omnidirectional Dynamic Microphones

MODEL 641

Modern two-tone design dynamic microphone. High output level, wide-range response. For public address, home recording, communications, electronic teaching aids, paging systems. Integral On-Off switch, wide frequency response.

MODEL 634A

Similar to Model 641 (above) except furnished without stand mounting stud or on-off switch. Fits any stand, boom or gooseneck with complete cable concealment. Ideal for desk mounting on electronic teaching aids, amateur and commercial communications and switchboard mounting for paging systems.

MODEL 638

Rugged, compact general purpose microphone. Ideal for all applications requiring maximum performance from microphone of minimum size.

MICROPHONE ACCESSORIES

Clamps

MODEL 300 DETACHABLE MICROPHONE CLAMP

Lightweight adapter fits any 1" cylindrical microphone providing positive mounting to ⅝"-27 desk or floor stand.

MODEL 301 SNAP-IN CLAMP

Similar to Model 300, but cut back to allow snap-in, snap-out mounting of 1" dia. microphones.

MODEL 310 DETACHABLE MICROPHONE CLAMP

Similar to Model 300 above, but designed for ¾" diameter microphones.

MODEL 311 SNAP-IN CLAMP

Similar to Model 301 for ¾" dia. microphones.

Suspension Shock Mounts

MODEL 356 SUSPENSION SHOCK MOUNT

For use with Model 642 on boom or floor stand when no windscreen is used.

MODEL 366 SUSPENSION SHOCK MOUNT

Extremely light. Designed for use with 666 microphone. Installs without tools. Pigtail cable connection with UA-3 connectors provides cable loop isolating boom shock noises. For any microphone with 1" diameter.

Windscreens

MODEL 327 WINDSCREEN PACKAGE

Consists of 324 shock mount and 326 windscreen, for use with Model 642 microphone. Fabricated of Acoustifoam®, eliminates "blast" caused by fast panning of boom, or when used outdoors.

MODEL 324 SHOCK MOUNT

Suspension mount for Model 642 microphone. Will accept Model 326 windscreen.

MODEL 326 WINDSCREEN KIT

Acoustifoam® windscreen for Model 642 microphone. Compatible with Model 324 Shock mount.

MODEL 335A WINDSCREEN

Acoustifoam® windscreen fits 630, 641, 634, 635 microphones.

MODEL 355 WINDSCREEN

Designed to reduce or eliminate wind noise, this windscreen is constructed of Electro-Voice Acoustifoam®, a material which will not alter frequency response or polar characteristics of microphone. Also protects against mechanical shock damage and pickup of dust and magnetic particles. For use with models 655C, 654A, 676, 636, 623, and 926.

MODEL 376 WINDSCREEN

One piece Acoustifoam® sleeve for 676 microphone.

MODEL 524A WINDSCREEN

Designed specifically for use with Model 666 microphone. Minimizes wind effect on boom operation or when used outdoors. Made of Acoustifoam®.

Transformer and Filter

MODEL 502A MATCHING TRANSFORMER

Designed for use in series with mike line. Transformer windings have low distributed capacity and are amply shielded against inductive hum by a shield inside pressure-cast case. Designed for 50, 150, 250 and 500 ohms to Hi-Z. Broadcast fidelity-response 40-20,000 cps ±1 db.

MODEL 513 FILTER

Designed for use with low impedance microphones, has switch to match 50, 150 or 250 ohms. When used in line between microphone and preamp., it rejects unwanted noise below 100 cps. Terminals provided for cable connections.

Microphone Stands

MODEL 415 RECLINING DESK STAND

Mounts 615, 715, 715S at 15° tilt.

MODEL 418 DESK STAND

Use with microphones using small-type stud such as Models 611, 623, 630, 641, 635, 636, 911, and 951.

MODEL 418-S

With switch.

MODEL 419 DESK STAND

Similar to Model 418 but for use with microphones using large-type stud such as Models 644, 664, and 665.

MODEL 419S

With switch.

MODEL 419G

Same as Model 419, except gold finish to match 664G microphone.

MODEL 420 DESK STAND

Heavy cast iron stand finished in TV gray. Specifically designed for use with E-V 666, 655C, 654A, 652, 652A, 676 or other microphones with 1" diameter. Clamp attachment for mounting 1" cylindrical mikes, without tools. Base holds mike in position when subjected to ordinary strain.

MODEL 420G

Same as 420, except gold finish to match 676G microphone.

MODEL 423A DESK STAND

Sturdy smartly styled, round die-cast base, 5¹⁄₈" diameter. Rests firmly on rubber base buttons. Rich satin chrome. ⅝"-27 thread. 5" matching stem riser.

MODEL 428 TOUCH-TO-TALK STAND

Fits standard ⅝"-27 thread. Lever-type DPDT switch for relay operation or microphone On-Off -closes or opens instantly or locks in "talk" position. Satin chrome; gray plastic switch lever with locking button.

PUBLIC ADDRESS HORNS AND DRIVERS

Compound Diffraction Projector

MODEL 848

Combines FC100 Compound Diffraction Horn plus DC30 Compound Driver for finest wide-angle sound, lowest distortion, highest quality of any projector.

Projector Horns

Completely new designs assure finest performance with Electro-Voice projector horns. Two basic types from which to choose... compound and reentrant. Exclusive compound horns permit widest range at lowest distortion, plus complete directional control of both highs and lows. Best wide-angle coverage with exclusive diffraction horns means better sound through entire coverage area. Concentrating compound horn provides highest efficiency at lowest distortion. Natural voice and music reproduction result in higher intelligibility without annoying peaks.

MODEL FC100

Similar to the famous CDP®, the FC100 provides two diffraction horns for uniform wide-angle coverage. Frequency response is not compromised since both horns are ideally designed to handle a specific portion of the range. Compound horn reduces distortion far below any other projector design. Flexible coverage control provided by individual adjustment of each horn. Large horn is fiberglass with Mesa Tan finish molded in. Use any E-V convertible driver.

MODEL AC100

Concentrating version of CDP®. Has all of the quality advantages of FC100, except utilizes round horns for most concentrated coverage with greatest efficiency. Retains compound design for lowest distortion-widest range. Use any E-V convertible driver.

Reentrant horns provide wider range than ever before at lowest cost. Unique E-V ring reflector design provides better balanced highs than possible with conventional exponential designs, by reducing high-frequency losses often encountered in reentrant horns. Smooth response plus added useful range increases intelligibility and adds to more natural sound. Rugged aluminum die-cast mounting plate plus precision die-cast reentrant tubes assure long-lasting performance. Heavy spun aluminum round bell or fiberglass rectangular horn provides either concentrated coverage or medium angle coverage. Electro-Voice Reentrant Horns accept any standard driver with 1³⁄₈"-18 threads.

MODEL FR150

Reentrant Horn. Medium-angle low-cost rectangular horn provides good coverage at low cost. Virtually indestructible fiberglass horn has Mesa Tan color molded in. Adjustable mounting angle allows best coverage. Can be stacked for multiple speaker applications. Ideal for car-top installation or wherever low silhouette is needed, and where bass response cannot be sacrificed. Accepts Electro-Voice convertible drivers or any standard driver with 1³⁄₈"-18 thread.

MODEL AR150

Reentrant Horn. Round concentrating horn for maximum penetration at lowest cost. E-V ring reflector plus precision new exponential design contributes to widest range yet achieved from this horn type. Smoother curve results in high intelligibility, and remarkably natural voice and music quality. Rubber edge-damping ring eliminates resonances. High-efficiency design allows more useful volume from driver over entire range. Accepts Electro-Voice Convertible drivers or any standard driver with 1³⁄₈"-18 thread.

Versatile Convertible Drivers

Now, for the first time, here are drivers that can be used interchangeably in compound or reentrant horns. Used on either type of horn, the new Electro-Voice Convertible Drivers feature highest efficiency available. Increased power handling plus extra increased efficiency make the 40- and 50-watt drivers uniquely useful where high power at minimum cost is essential. The high efficiency of all E-V Convertible Drivers is achieved without resorting to "peaked" response which may increase loudness, but does reduce intelligibility. The smooth response of these drivers insures most natural reproduction of voice and music for more satisfying quality with vastly reduced feedback problems and greatly increased tonal range. Double flux ceramic magnets provide long-lasting high efficiency in entirely new low-loss magnetic circuits. Edgewise-wound ribbon voice coils give 18% more efficiency.

The drivers are rugged and weatherproof; conversion to either reentrant or compound use can be made instantly in the field. Voice coils are also field replaceable, thus reducing repair costs to a minimum. E-V Convertible Drivers are available with 16-ohm voice coils or with built-in 70.7-volt line constant voltage transformers. This entirely new design concept gives better performance at minimum cost, making E-V Drivers your best buy.

Replacement kits not available for DC30BT, DC40T or DC50T.

†Measured at 4' on-axis with full rated power from 750-1250 cps. ††Measured on-axis with FC100 horn.

Paging Speakers

MODEL PA7 REENTRANT PROJECTOR

Attractively styled horn is constructed completely of Implex, virtually indestructible. Non-resonant horn won't dent, finish can't wear off. Electro-Voice diaphragm design eliminates loading problems, provides cleanliness of reproduction never before achieved in small projectors. Handles 7½ watts over a range of 400 to 13,000 cps. Wide 120° dispersion angle provides excellent coverage. Mounting bracket allows horn to be positioned at any angle.

PA 7-45

Same as above but with 45-ohm voice coil.

MODEL PA30

Entirely new thirty watt paging projector. Rectangular Implex horn design for maximum versatility, wide dispersion. Rugged high-impact horn and conservatively rated driver assure maximum reliability. Smooth response for both voice and music. Universal swivel bracket permits placement in any position. Accepts Model TR3 line matching transformers for convenient, attractive installation in large systems.

MODEL PA30-45

Same as standard PA30, but with 45-ohm voice coil for simple installation in intercom systems.

MODEL 844A

For medium-angle sound distribution. Features smooth response with better lows to provide natural paging without feedback. Handles 30 watts to reduce costs. Rugged die-cast horn, plus field-replaceable voice coil keeps service costs at a minimum.

MODEL 844A-45

Same as standard 844, but with 45-ohm voice coil for simple installation in intercom systems.

MODEL 847

Utilizing the famous CDP® Principle - this wide-angle speaker provides higher articulation without annoying "peaked" response over a uniform 120° x 90° area. Low distortion results from use of TWO diffraction horns. 25-watt power handling capacity. Fiberglass horn has mesa tan color molded in.

Line Radiator™ Loudspeakers

Three new, wide-angle speaker designs permit wide horizontal dispersion while almost eliminating sound output above or below speaker. Superb for voice-reinforcement systems. Unusually wide frequency range coverage.

MODEL LR4A

Curved design overcomes unwanted high-frequency dispersion at ends, eliminating echo and feedback. Contains nine 3" x 5" and three 3½" cone speakers, 160° horizontal dispersion; 60° vertical dispersion. Frequency response: 200-15,000 cps. Power handling capacity: 25 watts program, 50 watts peak. Nominal impedance: 8 ohms. Size 49" h. x 7" w. x 13" d. Mesa tan finished wooden enclosure.

MODEL LR4S

Electrical filter removes end speakers from circuit as frequencies increase, eliminating high-frequency lobes at ends. Specifications like LR4A, except that dispersion is 160°, horizontal: 30°, vertical. Weatherproof enclosure with mesa tan finish.

MODEL LR7

The largest of the revolutionary Electro-Voice Line Radiators. Both low and high-frequency response extended. Utilizes nine 5" x 7" loudspeakers and two T35 vhf drivers for frequency range of 100 to 20,000 cps. Full half-section crossover at 3500 cps. Horizontal coverage 160°. vertical coverage 60°. Power handling capacity 50 watts, impedance 8 ohms. Non-resonant, curved wood enclosure finished in Mesa Tan. Universal mounting brackets supplied.

Underwater Loudspeaker

MODEL DU30

Pool Speaker. For use in swimming pools to provide voice and music audible underwater. May be mounted at any depth down to 4 feet.

E-V Musicaster Hi-Fi Outdoor Weatherproof Speaker Systems

MUSICASTER

Provides high fidelity performance in a compact, portable system. Sturdy aluminum diecast housing protects weatherproof cone speaker and extends bass response through back-loaded folded horn. Dual Radax cone radiates smooth useful highs through 120° angle. Provision for mtg. 70.7-volt line transformer inside.

MUSICASTER II

Same fine performance as the Musicaster except has added brilliance and wider coverage from Very-High-Frequency Range Extender. Smooth response to 18,000 cps. Complete with crossover.

MODEL MB-1

Surface mounting bracket allows mounting of any Musicaster flat against wall for neat unobtrusive installation. Replaces standard "U" bracket.

Note: Sound Pressure Level is measured at 4' on-axis with full rated power from 750 to 1250 cps.

PA TRANSFORMERS AND ACCESSORIES

PA Transformers

MODEL TR5

5-watt 70.7-volt line transformer. 5, 2.5, 1.25 and .625-watt line power taps. 4, 8 and 16 ohms secondary impedances. Accepts solderless terminals in TH housing. Frequency response ± 2 db, 35-20,000 cps. Insertion loss 0.8 db. Overall dimensions 2" x 1¹¹⁄₁₆" x 1³⁄₈". Mounting hole centers, 1³⁄₄".

MODEL TR15

Same as TR5 except 15-watt capacity with 15, 10, 5, 2.5-watt line power taps. Overall dimensions 1³⁄₄" h., 2⁷⁄₈" w., 2⁵⁄₁₆" d.

MODEL TR30

Same as TR5 except 30-watt capacity with 30, 20, 10 and 5-watt line power taps. Overall dimensions 1³⁄₄" h., 2⁷⁄₈" w., 2⁵⁄₁₆" d. Mounting hole centers, 2³⁄₈".

MODEL TR50

Same as TR5 except 50-watt capacity with 50, 40, 25 and 15-watt line power taps. Overall dimensions 2½" h., 2⁵⁄₁₆" w., 2½" d. Mounting hole centers, 2¼".

MODEL TM5

Universal 5-watt 25- and 70.7-volt line transformer. Primary line power taps 5, 2.5, 1.25, .625 watts. Secondary impedance 8, 16 ohms. Accepts solderless terminals in TH housing. Frequency response ± 2 db, 35-20,000 cps. Insertion loss 0.8 db. Overall dimensions 2³⁄₈" x 1¹⁵⁄₁₆" x 1⁵⁄₈". Mounting hole centers, 2".

MODEL TM15

Same as TM5 except 15-watt capacity with 15, 7.5, 3.75, 1.875 watt line power taps. Overall dimensions, 2¼" x 2¼" x 1¼". Mounting hole centers, 2³⁄₈".

MODEL TM30

Same as TM5 except 30-watt capacity with 30, 15, 7.5, 3.75 watt line power taps. Overall dimensions 3¹⁄₂" x 2³⁄₄" x 2". Mounting hole centers, 2¹³⁄₁₆".

MODEL TM60

Same as TM5 except 60-watt capacity with 60, 30, 15, 7.5 watt line power taps. Overall dimensions 3¹⁄₁₆" x 3¹⁄₁₆" x 2½". Mounting hole centers, 3¹⁄₂".

MODEL TR7-2

7½-watt 25-volt line transformer and weatherproof housing designed specifically for use with the Model PA7. Mounts quickly and easily inside PA7 bracket. Primary impedance taps 83, 156, 312, 624, and 1248 ohms; 7½, 4, 2, 1, and ½ watt line power taps. 8 ohms secondary impedance.

MODEL TR7-7

Same as TR7-2 above except designed for 70.7 volt line applications. Primary impedance taps 660, 1250, 2500, 5000 and 10,000 ohms; 7½, 4, 2, 1 and ½ watt line power taps. 8 ohms secondary impedance.

MODEL TR3-2

30-watt 25-volt line transformer and weatherproof housing designed specifically for use with the Model PA30. Line power taps at 30, 15, 8, 4, 2 watts. Secondary impedance 8 ohms.

MODEL TR3-7

Same as TR3-2 above except designed for 70.7-volt line applications.

MODEL TH

Transformer Housing provides neat weatherproof mounting of any E-V transformer. Mount vertically or horizontally on any flat surface or on horn bracket. Exclusive wattage indicator tells power setting at a glance. No soldering required with E-V transformers.

Accessory

MODEL AP-1

Pipe stand adapter for mounting any E-V speaker "U" bracket to standard ½" pipe.

Company Information and History

Electro-Voice is a name which, for nearly forty years, has commanded world-wide respect in the manufacture of microphones, high fidelity components, loudspeakers and loudspeaker systems, phonograph needles and cartridges, electronic organs, and special military products.

All basic manufacturing processes - die-casting, plating, machining, stamping, plastic molding, and tool-making - are housed within our own plants. This enables E-V production experts to establish and control quality standards from original concept to final product. The benefits of production economies thus achieved are passed on to Electro-Voice customers in the form of better products and lower prices.

Electro-Voice laboratories are manned by the industry's largest staff of engineers devoted exclusively to audio-acoustic product development. Specially designed E-V test equipment is used for research and quality control, and a never-ending search for new design techniques meets the rapidly expanding needs of industrialists, technicians, and consumers.

Engineering milestones in E-V history are many. Microphones used by U.S. astronauts in nearly all successful Mercury orbit projects, and those for the Gemini space program, were designed and manufactured by Electro-Voice. An Academy Award was conferred on an Electro-Voice design for outstanding contribution to motion picture production.

Outstanding microphone design contributions include the Differential Principle of noise pick-up cancellation, the Mechanophase Principle of cardioid unidirectivity, the Acoustalloy Diaphragm, the Variable-D cardioid dynamic microphone principle, and an improved Distributed Front-Opening principle for highly directional microphone pick-up.

E-V developments in the loudspeaker field include an exclusive diffraction horn design, Radax coaxial loudspeakers, Sonophase throat design, separate two-, three-, and four-way high fidelity loudspeaker systems, Line Radiator loudspeakers, and Compound Diffraction Projectors for public address applications. Electro-Voice also developed the first monaural and compatible stereo-monaural cartridge and the Power Point - an integral cartridge-needle transducer - which had widespread impact on the entire phonograph pickup industry. A recent contribution is the E-V Featheride cartridge design which offers complete protection from needle scratch.

The Electro-Voice name owes its universal popularity to the successful combination of people, products, policies, and an affinity for craftsmanship and production techniques. This same combination is your assurance that your finest choice is - and will always be - Electro-Voice.

Trademarks of Electro-Voice, Inc.:

• Acoustifoam™
• Acoustalloy®
• Aristocrat®
• Cardiline™**
• CDP*
• C-V-D™
• Diffraction Horn™
• Featheride®
• Line Radiator™
• Musicaster™
• Patrician®
• Power Point®
• Radax™
• Sonocaster™
• Sonophase™
• Sound Spot®
• Stereon®
• Super-Sonax™
• Variable-"D"®*
• Wolverine®

*U.S. Patent No. 3,115,207

**U.S. Patent No. 3,095,084