Electro-Voice Royal 400 User's Manual
Contents
1. with the Royal 400 in two or three channel stereophonic systems Audiophile Net 69 57 ELECTRO VOICE IRC BUCHANAN MICHIGAN ennai Printed in U S A2. 0Q 2 poe U U lt 4 E2 3 Bes A ZZ lt 8 j i HA j HE LT Lr TEN Ha WANN Elche Voice ROYAL 400 INTRODUCTION The new Electro Voice Royal 400 is a 3 way low resonance system which despite its ultra compact design provides ex ceptionally wide range response It contains a special 18 woofer the Electro Voice Model 18WS utilizing a 4 Ib 10 oz ceramic magnet an 8 mid range cone type speaker with a 1 lb 6 oz ceramic magnet and a compression type very high frequency driver These features make it an ex cellent choice for either monaural or stereo reproduction Constructed of fine hardwood veneers the of h vibration free panels gives the Roypl 40 t z SPECIFICATIONS Nominal Impedance 8 ohms Power Handling Capacity Sine Wave 30 2500 cps 30 Watts Maximum 2500 20 000 cps 5 Watts Maxi mum Program Maximum undistorted output of 70 Watts amplifier on complex pro gram signal Frequency Response Range 30 19 000 cps 4 db Components 18 woofer 8 extended range speaker compression high frequen cy driver crossover network two level controls Size 15 Deep 27 High 25 Wide SCHEMATIC Component Wiring Figure 3 Frequency Response Royal 400 System Setting Up For Operation Shipping Damage Your Royal 400 is packed in accordance with all shipping requirements of the Interstate Commerce Commission plus extra protection I
3. OMMON terminal With this connection both units will then be phased correctly c en c en AMPLIFIER A AMPLIFIER B Figure 5 Amplifier Connections For Stereo a __Jacement For Stereo When arranging a pair of Royal 400 s in stereo array the units should be placed at positions which allow the listener to sit in the area of the apex of a 30 to 40 angle as shown in Fig 6 This will provide the best stereophonic effect If this placement is not possible you may by experiment use room reverberations to advantage in finding other desirable positions Figure 6 Conventional Placement of Speakers for Stereo _Videning The Stereo Area 3 Channel Listening The natural extension of 2 channel stereo reproduction is to In stereo recording great pains are taken to capture full realism by using 3 microphones to insure complete coverage of the sound stage The sound from the microphone in the center is then mixed out to both left and right channels of recorded sound From this master recording emerges the commercially available 2 channel stereo tape or disc In these two track stereo tapes and discs the element of this third channel remains and can be reformed by means of the Electro Voice XT 1 Stereo Mixer Transformer XT 1 recovers the center sound from the left and right channels adds them together in the correct proportions and passes them to the central speaker The addition of this third channel to yo
4. agneramic 31 is demonstrated in these three areas 1 Greater Flexibility The 31 Series cartridge will operate per fectly at any stylus pressure from 2 to 20 grams The same stylus assem bly can be used for operation of both turntable and record changers performance need not be compromised by using a special stiff stylus assembly for record changers Record wear is the only criterion in setting stylus pressure cartridge operation is not affected Thus when con verting from a changer to a turntable or vice versa replacement of the stylus assembly is not necessary when using the Magneramic 31 2 Higher Output Along with the trend toward less efficient speaker systems more amplifier power has become a necessity While most stereo amplifiers are now designed with input sensitivities to match the typical 5 millivolt output of mag netic stereo cartridges nearly all monaural amplifiers were designed for at least 8 millivolt input These cannot be driven to full output with a magnetic stereo cartridge The Magneramic 31 develops a full 8 millivolt output and couples directly into any magn tic preamp unit This higher output should be given special consideration by those planning to convert to stereo with existent monaural amplifiers 3 Freedom from Hum The increased amplifier gain required to drive low efficiency speakers coupled with decreased cartridge output has significantly increased system hum problems Also conventio
5. f shipping damage occurs contact the carrier directly requesting inspection and instruc tions Use the date code of the speaker in your correspondence Date Code Number The date code is noted on your warranty registration card The number indicates type style and date of manufacture of the unit Always use this number in your correspondence Warranty Card To register your Royal 400 fill out the War ranty Registration Card and send it to the factory within ten days after your purchase proyides the best coupling between the speakers air in the room the corners and walls acting as a Connections Connection of your Royal 400 to the amplifier should be made with No 18 or larger wire Common lamp cord is good If you wish to run the lead between amplifier and speaker farther than 30 or to run it behind a moulding strip or under a carpet use 300 ohm TV twin lead Connect to the 8 ohm and common taps on the back of the amplifier Be certain that these connections are secure Connectors already in place between terminals on the Royal Fig 4 should be left in place unless unit is used for stereo reproduction wi E V Stereon 300 add on unit Specific instructions will _ found with the Stereon 300 Amplifier Connections Figure 4 Level Controls Your Royal 400 is equipped with two controls a treble array adjustment and a brilliance control both of which are on the rear panel Set treble array fully cloc
6. fullest bass response Where space is an intense problem good performance can also be achieved by using a pair of Stereon 300 s with one Royal 400 Complete wiring diagrams for connecting the Royal 400 with Stereons and XT 1 will be found in the instruction sheets accompanying the Stereon Speaker Repairs Your Royal 400 system is guaranteed indefinitely against de fects in workmanship and materials Should it become damaged or develop faulty operation from unusual con ditions of use Electro Voice maintains a complete service department to put equipment in factory new conditions Please write for authorization and shipping instructions before re turning any equipment Be sure to give full name and address together with a short description of the difficulties in your system Technical Service The firm from which you purchased your equipment knows thoroughly the application of Electro Voice products and high fidelity stereo techniques His advice on the installation of Electro Voice components and on the selection of associ ated high fidelity equipment will be invaluable Technical problems which cannot be answered locally may be referred to MANAGER CONSUMER PRODUCTS DIVISION Electro Voice Inc Buchanan Michigan OTIS Sui cM ah 13 T TT tSr n iT Aico cicciuru voice s genuinely convinced that a precision ceramic cartridge is the finest type that can be made today the superiority of the E V Ceramic M
7. kwise unless the unit is to be matched in a stereo arrangement with a speaker of differing efficiency Brilliance control setting should usually be at NORMAT but this may be adjusted to suit the acoustics of the room _ which the Royal is used A simple convenient way to adiust the high frequency level control is to tune in a live FM broadcast and listen closely to the announcer s voice particu larly the s and t sounds at a volume level equal to that of your own speaking voice Adjust the control until the s and t sounds are no more prominent in the announcer s speech than they are in yours such an adjustment will enerally be quite satisfactory Too high a setting of the Fidhy frequensy control will be audible as a piercing harsh metallic sound The best guide of course to proper setting _ of the control on the speaker system is a familiarity with the und of live music Most listeners will find it easy to balance sound to conform to their personal tastes Stereo Operation Your Royal 400 is designed to give professional quality sound reproduction The same performance features which make this unit outstanding for monaural reproduction will also give superb performance in stereophonic array The wiring connections for a pair of Royals in stereo are shown in Fig 5 When connecting be sure to run the lead from T1 on the Royal to the 8 ohm terminal on the amplifier and from T2 to the C
8. nal methods of hum elimination used in mon aural magnetic cartridges become difficult or impossible to apply to stereo magnetics The Magneramic 31 completely elimi nates these problems It is non inductive and has adequate output The Electro Voice Magneramic 31MD7 cartridge directly replaces any monophonic or stereophonic magnetic cartridge now on the market It feeds into the preamp input jack specified for magnetic cartridges and does not require adapter or circuit modifications SPECIFICATIONS MAGNERAMIC 31MD7 Response Range 20 to 15000 cps 2 db Westrex 1A Output 8 millivolts Compliance Vertical 3 5 x 108 cm dyne Recommended Load 22 000 to 47 000 ohms Magnetic phono Compliance Lateral 3 5 x 106 cm dyne inputs Isolation 28 db 1000 cycles Elements 2 lead Zirconium Titanate Ceramic Tracking Force 2 to 4 grams in transcription arms Weight 8 grams 4 to 6 grams in changer arms Terminals 4 standard 050 connectors Styli 1 mil diamond Mounting Centers Fits both 1 2 and 7 16 Audiophile Net 24 00 Want more information Send for the booklet FACTS ABOUT THE ELECTRO VOICE Magneramic Cartridge Model XT 1 Stereo Mixer Transformer For use with the Stereon 300 and Royal 400 Only one required for two or three channel stereo system Audiophile Net 13 50 Stereon 300 A two way system consisting of a Radax extended range speaker together with a diffraction horn very high frequency driver Oper ates
9. ur system gives com plete flexibility of seating in that one can now enjoy good stereo anywhere in a very large room or more importantly quite close to the loudspeakers in small rooms At all times in virtually any listening position there is a complete curtain of stereo sound Stereons For those who have space or budget limitations a Stereon 300 see next page can be used with the Royal 400 for either two or three channel stereo The Stereon 300 which matches exactly the treble array of the Royal 400 can be used virtually without compromise in sound by taking advantage of a natural phenomenon in 1934 an acoustic engineer Harvey Fletcher determined that sounds from about 300 cycles per second downwards in the audio spectrum which have a wave length greater than 3 feet are not intercepted to any per ceptible degree by the head accordingly the ears find it impossible to detect the direction from which such sounds originate E V Stereons take advantage of this phenomenon by using the full bass reproduction capabilities of one full range reproducing system for all bass and channelling the stereo sounds above 200 cps correctly to each channel The Stereons then permit easy and economical expansion to the stereo system The popular approach to E V Panasound 3 channel stereo sound is obtained by using two Royal 400 s with one Stereon 300 This arrangement permits the use of two full range units to achieve the
Download Pdf Manuals
Related Search