Electro-Voice E-V TWO Engineering Data

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DESCRIPTION
The Electro-Voice E-V TWO system is a carefully
designed two-way reproducer offering outstanding
performance inanenclosure ofsurprisingly modest
dimensions. Vastly lower distortion and wide
frequency range are achieved by the use of two sepa-
rate drivers, each handling a special portion of the
audible spectrum. The massive twelve-inch woofer,
built in a high-pressure die cast chassis, features
such refinements as a ceramic magnet, edgewise-
wound voice coil, anda linear suspension which
allows long yet carefully controlled excursions.
Frequencies above 800 cps are handled by an en-
tirely new high-frequency driver and diffraction
horn combination which utilizes the latest in pre-
cision injection molding techniques and quality
control procedures. An outstanding ring diaphragm
design eliminates the coloration often found in
ordinary dome-type diaphragms. The exclusive
diffraction horn ensures wide, smooth dispersion
of critical high frequencies for maximum realism,
especially when the E-V TWO is used in stereo-
phonic systems. A two-way electrical crossover
provides smooth transition from one driver unit to
the other. Finest quality components and etched
circuit board construction are employed for maxi-
mum power handling capacity and crossover-
frequency accuracy.
The attractive totally-sealed enclosure of the E-V
TWO is rigidly constructed from three-fourths-inch
stock throughout and carefully hand finished on four
sides in oiled walnut or mahogany. The nameplate
rotates to permit either horizontal or vertical
placement.
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E-V TWO COMPACT
FEATURES
e Two separate component quality drivers
for wide range, low distortion
o High efficiency for use with any
amplifier
e Fine furniture cabinetry finished
on four sides
SPECIFICATIONS
FREQUENCY RESPONSE: 30 to 15,000 cps
NOMINAL IMPEDANCE: 8 ohms
POWER HANDLING CAPACITY:
PROGRAM 30 watts
PEAK 60 watts
DIMENSIONS: 14" ВХ 25" w X 13-1/2"d
FINISHES AVAILABLE: Oiled walnut and
mahogany
SHIPPING WEIGHT: 46 lbs,
: ats. A,
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FREQUEMCT IN CYCLES PER SECOND
Figure 1 - Frequency Response
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Figure 2 - Schematic Diagram
INICIADA | OUDSPEAKER SYSTEM
PLACEMENT
The E-V TWO may be placed on a shelf or table,
or on the floor. Generally, however, maximum
realism will be obtained ifits height from the floor
approximates the listener's ear level. A room
corner, if available, assures maximum efficiency
and bass reproduction, since the room walls are
thus made an integral partof the system, acting as
the sides ofalarge horn. The E-V TWO performs
equally’ well horizontally or vertically, and the
nameplate may be rotated to accommodate either
placement.
"HOLE IN THE
MIDDLE”
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ВЕЗТ
LISTENING
POSITION
SOUND BECOMES
MONAURAL AT
GREATER DISTANCES
Figure 3 - Placement For Stereo
The same comments apply to stereophonic place-
ment. In addition, the two systems should be far
enough apart to permit listeners to sit at the apex
of a 30° to 40° angle, as illustrated. A distance
of six to eight feet between stereo speakers will,
in mostrooms, provide natural separation, Placing
loudspeakers too close together or listening at too
greata distance will destroy the stereo effect, since
essentially monophonic sound will be heard by the
listener. Extreme spacing between speakers or
listening at too shorta distance will produce exag-
gerated and unreal separation. In long rooms, the
loudspeakers should be placed along one of the
short walls facing into the long room dimension.
This improves bass reproduction and provides good
stereo listening over most of the room.
St
AMPLIFIER CONNECTIONS TO E-V TWO
The E-V TWO system has a nominal impedance of
eight ohms. Connections, therefore, should be
made between the left terminal (T1) and the ampli-
fier eight-ohm terminal; the right terminal (T2)
should be connected to the amplifier COMMON ter-
minal (sometimes referred to as "О" or "С" ).
Connections should be made with No.18 or larger
wire; common zip or lamp cord is quite satis-
factory. If the speaker leads are to be run behind
а molding strip or under a carpet300-ohm TV twin
lead should be used,
ADJUSTMENT OF BALANCE CONTROLS
The E-V TWO is equipped with a three-position
step-type balance control which is used to accom-
modate the high-frequency response of the system
to varying acoustical environments. A "normal
position" is indicated on the control which should be
correct in most instances. Acoustically "Вага" or
"live" rooms may require a retarded setting of the
control to compensate for the greater amount of
high-frequency reflection. In "soft' or "dead"
rooms with carpeting, draperies and soft furniture,
the advance setting of the control will normally be
required. The best guide to setting the control
properly is, of course, a familiarity with the sound
of live music. That position of the control which
provides the musical balance most satisfactory to
you is correct.
CUSTOMER SERVICE
The E-V TWO system is packed to provide pro-
tection well in excess of shipping requirements of
the Interstate Commerce Commission. If shipping
damage does occur, contactthe carrier, requesting
inspection and instructions, or the dealer from
whom the unit was purchased. The E-V TWO is
guaranteed indefinitely against defects in original
workmanship and materials, Should your system
decome damaged or develop faulty operation from
unusual conditions of use, write to the Electro-'
Voice Service Department requesting return
authorization and shipping instructions. Be sure to
mention the make and model number of other com-
ponents used in the system.
Part No. 531043 Ey, ELECTRO-VOICE, INC. I Buchanan, Michigan Litho in U.S.A.
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