ALTEC LANSING MODEL 14

A lot of speakers claim tobe audio
breakthroughs. Our new Model 14 really is. In
fact, it's so unique, that before we could create
it, we first had to invent a whole new family
components. We began with a new type of horn,
The Mantaray. It's the first "constant directivity"
horn ever created. Conventional horns, cones and
domes(including socalled omnidirectional and
reflective speakers) tend to "beam", that is,
narrow their angle of sound radiation at higher
frequencies. This effect causes the stereo image
to lose strength off the center axis and to
actually wander.


Mantaray, on the other hand, delivers a clearly-
defined sound wedge that keeps its strength
regardless of the music's changing frequencies.
You get the full spectrum of sound and the most
solid three-dimensional stereo image you've ever
heard. And since the sound doesn't diminish off
center axis, the Model 14 enlarges your listening
area, your "stereo sweet spot".
As an extra benefit, Mantaray's precise sound
focusing means your music goes in your ears -
not in your drapes, walls and ceilings.
Consequently, it's more likely than other speakers to sound
the same in your home as it does in your dealer's showroom.
Then to give you even higher highs, we devloped
the first radial phase plug, The Tangerine. In
contrast to conventional phase plugs with two
equidistant circular slots that blocksome
frequencies, the Tangerine's tapered slots permit
a free flow of high frequencies to beyond 20 KHz.
Equally important to all this is our new
Automatic Power Control System. Unlike fuse-
type devices or circuit breakers, the systems
keeps track of the power pumped into the
speaker, lets you know with a blinking light when
power exceede safe limits, and then reduces
overloads automatically, but without shutting the
speaker off. It's quite a system.
In addition, the Model 14 offers you super-
efficiency, high-power handling capacity and
exceptional dynamic range, plus a new vented
enclosure with a 12-inch bass driver for a tighter,
crisper low end. So that's how audio history is
made. And it's all yours at a price that means
the best sound value available for your home
today.

SPECIFICATION

SPEAKER COMPONENTS:
LOW FREQUENCY; 12''Bass driver
HIGH FREQUENCY;
Radial Phase plug Compression driver mounted to
MANTARAY constant directivity horn
NOMINAL IMPEDANCE: 8 ohms
CROSSOVER FREQUENCY: 1500 Hz
ENCLOSURE TYPE: Vented
SENSITIVITY: 95 dB SPL
(Measured at 4 feet, 1 watt input, using pink noise which
has been limited to a bandwidth of 500 Hz to 3 kHz)
FREQUENCY RESPONSE: 35 Hz to 20 kHz
DYNAMIC RANGE:
44 dB minimum crest facto above 70 dB SPL at 4 feet
DISPERSION: 90⁰ at -6 dB Horizontal; 40⁰ at -6 dB Vertical;
tilted to 30⁰ up.10⁰ down
(Measured with pink noise limited to a bandwidth of
800 Hz to 8 kHz at a distance of 4 feet)
LONG TERM BROAD BAND MAXIMUM POWER:
75 watts unprotrcted, 200 watts with Automatic Power Control
(Measured with a source of pink noise limited to the frequency
response bandwidth of the system, over an extended time period)
OPERATIONAL POWER RANGE: 10 watts to 350 watts
LONG TERM MAXIMUM ACOUSTIC OUTPUT: 114 dB SPL
(Measured at a distance of 4 feet with a source of pink noise
limited to the frequency response bandwidth of the system)
FINISH: Hand-rubbed, oiled walnut
GRILLE: Acoustically-transparent black knit fabric mounted to removable frames
DIMENSIONS: 30" x 21" x 16½" (H x W x D) with grille
WEIGHT: 34,9 Kg (77 lbs) net, 43,1 Kg (95 lbs) in shipping cartoon