Electro-Voice E-V ONE User manual

Electro-Voice E-V ONE User manual
Eleclio Yoree ENGINEERING
DESCRIPTION
Given the task of creating a moderately-priced loud-
speaker system which, despite space restrictions
frequently imposed by modern decor, would repro-
duce sound faithfully over abroad frequency range,
Electro-Voice engineers designed the E-V ONE.
These seemingly-disparate objectives were ac-
complished by employing two drivers, each designed
to function in a particular portion of the sound
spectrum, matched toa carefully-designed acoustic
enclosure of three-fourths-inch hardwood veneer.
Sounds in the lower range--those below 850 cps--
are effectively reproduced by a component-quality
ten-inch woofer, design refinements of which in-
clude a ceramic magnet, precision-wound voice coil,
and a linear suspension permitting long--but care-
fully controlled--excursions.
Sounds in the upper frequencies are reproduced by
a five-inch dynamic cone driver of sophisticated
design which utilizes silvered aluminum voice coil
wire to obtain unusually high conductivity with pro-
portionately low mass. A polyurethane suspension
provides optimum compliance and damping.
A two-way electrical crossover provides smooth
transition from one driver unit fo the other, Finest
quality components and etched circuit board con-
struction are employed for maximum power handling
capacity and crossover-frequency accuracy.
— The ultra-slim totally-sealed enclosure of the E-V
ONE is rigidly constructed from five-ply stock
throughout and carefully hand finished on four sides
in oiled walnut. The nameplate rotates to permit
either horizontal or vertical placement.
FEATURES
E-V ONE SLIMLINE
BENE | OUDSPEAKER SYSTEM
e Two separate component quality drivers
for wide range, low distortion
e High efficiency for use with any
amplifier
e Fine furniture cabinetry finished on
four sides
SPECIFICATIONS
FREQUENCY RESPONSE: 50 to 15, 000 cps
VLVO ONIN33NI9N3
NOMINAL IMPEDANCE: 8 ohms
POWER HANDLING CAPACITY
PROGRAM: 25 watts
PEAK: 50 watts
DIMENSIONS: 24-3/8 in. h X 16-3/5 in. w X 5-
5/8 in. d
FINISH: Oiled walnut
NET WEIGHT: 20 pounds
SHIPPING WEIGHT: 22 pounds
== БЫ!Ь ===
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A
FREQUENCY IN CYCLES PER SECOND
Figure 1 - Representative frequency response and
balance control action.
PLACEMENT
The E-V ONE may be placed on a shelf or table,
or on the floor. Generally, however, maximum
realism will be obtained if its 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 act
as the sides of a large horn. The E-V ONE per-
forms equally well horizontally or vertically, and
the nameplate may be rotated to accommodate
either placement.
PLACEMENT FOR STEREO
The same comments apply to stereophonic place-
ment. Im 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 togetheror 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.
"HOLE IN THE
MIDDLE"
90°
BEST
LISTENING
POSITION
SOUND BECOMES
MONAURAL AT
GREATER DISTANCES
Figure 2 - Placement for stereo
AMPLIFIER CONNECTIONS
The E-V ONE 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 "O" or "C").
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 run behind
a molding strip or under a carpet 300-ohm TV twin
lead should be used.
BALANCE CONTROL
The E-V ONE is equipped with an acoustical
balance control which is used to accommodate 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 "hard" 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, an
advanced 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 ONE system is packed to provide pro-
tection well in excess of shipping requirements-of
the Interstate Commerce Commission. If shipping
damage does occur, contact the carrier, requesting
inspection and instructions, or the dealer from
whom the unit was purchased. The E-V ONE is
guaranteed indefinitely against defects inoriginal
workmanship and materials. Should your system
become 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. 531166 Ey) ELECTRO-VOICE, INC. 7 Buchanan, Michigan Litho in U.S.A.
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