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Electro-Voice X425 User's Manual

1. Finish is gray and the component parts are potted in a thermoplastic asphalt Model X36 SPECIFICATIONS Model X425 X X8 X825 X36 X336 X2635 Crossover 400 cps 600 cps 800 cps 800 cps 3500 cps 300 cps 200 cps Frequency 3500 cps 600 cps 3500 cps Impedance 16 ohms 16 ohms 16 ohms 16 ohms 16 ohms 16 ohms 16 ohms Insertion Loss Lo 8 db 6 db 5 db 8 db 75 db 1 5 db 6 db 1 5 db 6 db Hi 3 db O db O db 3 db O db 0 db 0 db Section Y section Ye section section Y section Y section V2 section Ya section section 300 cps section 200 cps Attenuation 6 db oct 12 db oct 12db oct 6db oct 12 db oct 12 db oct 12 db oct 6 db oct 300 cps 6 db oct 200 cps Phase Rotation 135 270 270 135 270 270 270 135 300 cps 135 200 cps Dimensions Height 46 Ss 4s 3s 3e 5 6 6e Depth 3 4 s 3 3 3 436 5 Width 4 6 54 4 6 4s 4s 5 5 Shipping Weight 4lb 5 Ib 4 lb 3 Ib 2 b 9 Ib 11 Ib MODEL X425 The X425 crossover network is designed for use with most E V woofers or coaxial drivers in an infinite baffle when it is desired to cross over to the mid range from the bass driver at a lower frequency MODEL X6 The X6 crossover network is designed for use with the Electro Voice T25A or T10A driver units and GHD Hoodwin diffraction horn MODEL X8 The X8 crossover network is designed for use with the Electro Voice T25A or T10A driver units and SHD Hoodwin diffraction horn The X8 is used
2. are included with the individual driver units and packed with each E V enclosure amp Schematic Diagrams J 2 29 MH LO ASZ5 2 99 MH 4425 4 78 MH IN o sna COM x025 13 28 MF R425 24 9 MF 10 Model X8 Model X825 and Model X425 LOO0 524 MH Bit SMA ATEM AN 284MFD IZ7MED 17 7MFD ee ED I OOO gl lawo awo zen 83M 7 I77 MEO r L VHE HF E E ee ee 998 3 Rhad R IP p C SO E ee 2 aa COMMON Model X36 x Model X336 Model X2635 Gy ELECTRO VOICE INC BUCHANAN MICHIGAN Part No 53341 Printed in U S A
3. in both the Aristocrat II and III systems the Regency II and III systems and the Empire II and III systems nn v 2 e a Q 3 v Q s a a a c a mH 3 u GEIZX SEX SEX SZBX SZPX BX 9X SlapoW IOIOA OULOITI 43 MODEL X825 The X825 crossover network is designed for use with the Electro ere EAA Voice T10A driver unit and 8HD Hoodwin diffraction horn The X825 is of 1 4 section and finds application in medium efficiency systems employing E V 12BW SP12B and T10A drivers such as the Aristocrat I and IA Regency I and IA and Empire I and IA MODEL X36 The X36 crossover network is designed for use with the Electro Voice T35 and T35B Super Sonax VHF driver units MODEL X336 The X336 crossover network is designed for use in the Electro Voice Georgian 4 way loudspeaker system Model 105 Frequencies below 300 cps are fed to the 15WK low frequency driver the frequencies between 300 and 3500 cycles to the 848HF compound coaxial mid range driver and those above 3500 cps to the T35 Super Sonax VHF driver MODEL X2635 The X2635 crossover network is designed for use in the Electro Voice Patrician and the Residence Entertainment Center The X2635 uses a section constant K 200 cps network with 1 section networks for the higher frequencies Because of the inherent high frequency cutoff of the low frequency Fig 1 Typical Single Network horns used in both the Pat
4. FlecheVorce INC BUCHANAN MICHIGAN ELECTRO VOICE n Specifications and Instructions Models X6 X8 X425 X825 X36 X336 X2635 Crossover Networks Electro Voice crossover networks are high Q low insertion loss frequency dis criminatory filters designed for use in systems having a characteristic impedance of 16 ohms All E V crossovers are of the constant K configuration A basic advantage of the constant K type filter is that identical values of components may be used in both series and shunt arms thus identical phase rotation and transient response are insured on either side of the crossover frequency E V crossovers are designated by the 3 db down point in the network frequency response curve For example the high pass section of the X8 crossover is 3 db down at 800 cps as is also the low pass section Attenuation in Electro Voice networks takes place at the rate of 12 db per octave for 2 section filters and 6 db per octave for 1 4 section networks Because high Q air core inductors are used in these crossover networks filter characteristics are maintained constant despite changes in average values of program level Electro Voice crossovers will safely handle up to 100 RMS watts Since the average level of program material in home listening rarely exceeds 2 watts the safety margin inherent in the design of these units is indeed a large one All Electro Voice crossover networks are housed in drawn steel cans
5. rician and Residence Entertainment Center rapid Wiring Diagram attenuation is not required in the low frequency crossover Typical applications of Electro Voice networks are shown in Figures 1 and 2 Figure 1 illustrates a single crossover used to separate frequencies radiated by a T35 or T35B Super Sonax VHF driver and a low frequency or coaxial low range speaker Figure 2 is typical of a cascaded application in which two crossover networks are employed It is not important in which order the crossovers are cascaded the purpose of such an arrangement being merely to insure a pass band fre quency response for the treble mid range driver Although these crossovers have been designed for use in 16 ohm systems they may be employed in other situations For instance if a 16 ohm unit is used in a system in which both the input and output impedances are 8 ohms no appreciable shift in crossover frequency will be experienced although the insertion loss of the crossover will be greater In the case of reproducers with unequal im pedances the crossover should be connected to a 16 ohm source As an example if an 8 ohm woofer is used with a 16 ohm tweeter the reproduction of bass will be favored however if the tweeter was an 8 ohm unit and the woofer 16 ohms Fig 2 Typical Cascaded Network then treble reproduction would be relatively louder Wiring Diagr am Complete instructions and information on the assembly of E V drivers and systems

Electro-Voice X425 User's Manual

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