Altec fifteen brochure

Page 2

model fifteen

Excellent acoustic output, full range response and
extended bandwidth in a two-way system - the Fifteen
speaks for itself. It represents a new generation of two-
way systems - reaching far beyond the technology
employed in previous two~way floor-standing speaker
systems.

The innovative radial phase plug? a result of a year-
long Altec Research and Development investigation.
is a key element in the Fifteens extended high fre-
quency response. It is the heart of an all new coni-
pression driver developed by Altee to give smooth
response to beyond 20 kH7 when coupled to the
unique curved radial horn that has been adapted for
use in the Fifteen.

An exhaustive research program concentrating on low
frequency performance has led to a thorough investi-

SPECIFICATIONS:

SPEAKER
COMPONENTS-
l.()W FREQUE Y:
HIGH FREQUENCY:

l2 buss driver

Radial phase plug compres-
sion driver motinted to curved
radial horii.

NOMINAL IMPEDANCE: 8 ohms

(ROSSOVER
FREQUENCY: I700 HI.
ENCLOSURE TYPE: Vented

SENSITIVITY:
Measured at 4 feet. 1 viatt
input, using pink noise
Much has been [united

to a banduidth of

<61le to 3 kHz.

FREQL'ENCY
RESPONSE:

90 dB SIL
94 dB SPLQ

30 Hz to 20 kH/

DISPERSIO. .

Measured vtith pink noise
limited to a bandwidth of
itlt) H7 to X kl-ll at a distance
of 4 feet.

lit) at 76 dB vertical
[2th at 76 dB horizontal

Patent Pending

SOUND PRODUCTS DIVISION
1515 SOUTH MANCHES l ER
ANAHEIM. CAI IF 92803 USA.

Printed in LISA

gation of the enclosure/driver interrelationship. Internal
acoustic pressure variations. material energy absorp-
tion. and dynamic thermal factors have been exam»
ined. analyzed. and controlled- to provide an optimum
balance of lowfrequency hand limits and sensitivity.
The Fifteens superb low-frequency performance is the
result of this enclosure tuning technology investigation.

Extended low end, extended high end 7 results of
major research and development efforts front Altec.
Put these powerful new technologies together in a
hand-rubbed. oiled oak or walnut cabinet and you
have the Fifteen i an exciting addition to any quality
system.

Outstanding, response and elegant styling -~ the Fifteen
is equally comfortable in studio or living environment.

LONG TERM BROAD
BAND MAXIMUM
POWER:

Measured with a source of

pink noise limited to the

frequency response hand idth
of the system. over an extended
time period

OPERATIONAL POWER
RANGE:

Recommended for use with
amplifiers hetneen these
levels,

LONG TERM
MAXIMUM ACOUSTIC
OUTPUT:
\teasurcd \\ ith a source ot
pink noise limited to the
frequency response handuidth
of the system at a distance of
1 feet,

FINISH:

60 wattsl

l2 watts to 250 watts

I ll dB SPI. til 60 waltsl

Hand-rubbed Oiled walnut
or oak.

GRILLE: Acoustically transparent foam
mounted on removable panel.
Black supplied with walnut,

. brown with oak cabinet.

DIMENSIONS: 33W V 27H x 15/2 "D with
base and grille.

SHIPPING WEIGHT: 84 lbs. ~ 38.] kg

NET WEIGHT: 76 lhs. 34.5 kg

i l l Measured ith shehing controls set at optimum,
i 2. > Measured llI'l shelvmg controls fully cloekuisc

ALTEC CORPORATION
676 ALGU-I)