Electro-Voice X6 User manual

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ELECTRO-VOICE, INC.
BUCHANAN, MICHIGAN
S K
Specifications and
Instructions
Models X6, X8, X425,
X825, X36, X336, X2635
Crossover Networks
Model X36
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 scries 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 section filters and
6 db per octave for -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. Finish is
gray and the component parts are potted in a thermoplastic asphalt.
SPECIFICATIONS
Model X425 X6 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
0 db
0 db .3 db 0 db 0 db
0 db
Section 14 section
Vi section Vi section Va section
Vt section Vi section
Vi section
Va section (300 cps) Va section (200 cps)
Attenuation 6 db/oct.
12 db/oct. 12 db/oct. 6 db/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 c (300 cps)
135° (200 cps)
Dimensions—Height
4‘We
5%8
4 l Vis
3 7 /is 3“ia
5^8
6'/l6
Depth
3% 4%g 3% 3%
3%
49i«
514
Width 4 7 /t6
5Va 4 7 /l6
4 7 /t6 4 7 /io
514
5%
Shipping Weight 41b 51b 41b 3 lb
21b
91b
11 lb
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 6HD Hoodwin diffraction horn.
MODEL X8 — The X8 crossover netw'ork is designed for use with the Electro-
Voice T25A or T10A driver units and 8 HO Hoodwin diffraction horn. The X8
is used in both the Aristocrat II and III systems, the Regency II and III systems,
and the Empire II and III systems.
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Fig. 1 — Typical Single Network
Wiring Diagram
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Fig. 2 — Typical Cascaded Network
Wiring Diagram
MODEL X825 — The X825 crossover network is designed for use with the Electro-
Voice TlOA driver unit and 8HD Hoodwin diffraction horn. The X825 is of */4
section and finds application in medium efficiency systems employing E-V 12BW,
SPI2B and TlOA drivers such as the Aristocrat I and LA, Regency I and 1A 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 <f-wav 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
•4-section constant-K 200 cps network with •/^-section networks for the higher
frequencies. Because of the inherent high-frequency cutoff of the low-frequency
horns used in both the Patrician and Residence Entertainment Center, rapid
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 T 35 B 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,
then treble reproduction would be relatively louder.
Complete instructions and information on the assembly of E-V drivers and systems
are included with the individual driver units and packed with each E-V enclosure.
Schematic Diagrams
Model X6
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Model X8
Model X825 and Model X425
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COMMON
Model X336
Model X2635
£y ELECTRO-VOICE, INC. / BUCHANAN, MICHIGAN
Pari No. 53341 Printed in U.S.A.