To reproduce
in clear sound without distortion anything from the earth-shaking basso
profundo of pipe organ to delicate overtone of a violin or the sharp sound of
cymbals … this is the requirement speakers
must fullfill as an outlet for sound, . In its challenge to surmount
this difficult objective, Kenwood so far has marketed numerous excellent
speaker systems.
Based on our
ampie past experiences, we now have completed the model KL-777, a power ful
15", 4-way , 6-speaker system.
The large
diameter 15" woofer rock beautifully reproduces basso profundo which will
even rock the room. Treble and mid-range are handled by two squawkers and two
tweeters. A full range of ultra-high frequencies is freshly reproduced by new
acoustic material called "mylar film" used in the corn type super
tweeter.
The front
grille is of the "bow line" design giving the set a classic
appearance to accent a room-interior. When the grille is removed, it will show
the buffle of refined finish, on which the level control is attached for
adjustment of tone quality suitable for the room.
Woofer.
The newly
developed powerfull 15", free-edge type woofer reproduces the fundamental
a area with minimum distortion. This woofer, being specially designed for the
air-suspension model, has successfully been made compact cabinet for the
15" class. The effective range is 800 Hz or below.
Mid-range
The most
important range of 800 Hz - 5,000 Hz in music is reproduced by two 5"
cornt-type mid-range, parallelly connected. They richly reproduce the
mid-range. Being parallelly arranged, their allowable input has been increassed
and effixiency improval.
Horn Tweeter
The two horn
tweeters, which reproduce treble crisply, are parallelly arranged for improved
directivity and increassed allowable input.
Super
tweeter
The new
acoustic material called "Mylar film" is used in the super tweeter
which handles the cone above 10,000 Hz. The normal corn using fiber material is
somewhat non-uniform in inner structure due to directional peculiarities of
fiber. This is apt to cause split vibrations at high keys.
"mylar film" being of even and uniform structure does not give split vibrations at high keys. Also, because a small quantity is used, ultra-high frequencies beyond the audio frequency can be beautifukky reproduced without distortion.
"mylar film" being of even and uniform structure does not give split vibrations at high keys. Also, because a small quantity is used, ultra-high frequencies beyond the audio frequency can be beautifukky reproduced without distortion.
It being of
small diameter and corn type, the directivity is also greatly improved.
Network
The network
may appear to be of little relation to the tone quality. However, it could
cause distortions near the crossover points or damping inferiority in ultra low
frequencies. Model KL-777 takes a full scale network of 12 dB/oct with the
ferrite core which gives less magnetic loss. The copper wire used for voice
coils can amply endure the overload and
help avoid distortions due to interventions near crossovers or damping
inferiority in ultra-low frequencies.
Tone
Selector
The tone
selector is positioned in the front panel for easy operations.
"Soft"
tone is suitable for room in which there is insufficiency in bass or where
treble along are reflected.
"Clear"
tone is for a boomy room which has insufficient absorption of bass or in which
treble alone are absorbed.
"Normal"
tone is for a normal room which may be say, in between the above two.
Cabinet
The front
grille is of the "bow line" design giving a classic and calm
appearance as an accent for the room interior.
Despite the
large woofer used, it is comparatively compact and slim facilitating free
setting. The front buffle is finely finished and, thus, one may remove the
front grille and enjoy its professional appearance. The grille can be easily
removed by hand.
Allowable
Input
With its
maximum input of 100 W, it is capable of reproducing large sound. Further, it
can be safely used in combination with an amplifier of large output.
Sensitivity
The
air-suspension type model is considered characteristic and advantageous with
its compact enclosure and capability to reproduce ultra-low frequencies. In
contrast, however, its sensitivity is not favorable. Therefore, unless an
amplifier of a large output is used, it might not effectively perform its
function.
Unlike other
air-suspension type models, the KL-777 has gained high sensitivity of 102 dB
and can fully perform the function with and amplifier of small output.
Speaker
terminals
The
one-touch connection terminal has been newly adopted for simple yet firm
connection of cords.
Specifications
Mounted
Speakers:
Woofer
: 15" free edge type
Mid-range
: 2 x 5" corn type
Tweeter
: 2 x Horn type
Super
Tweeter : Corn type
Enclosure: Acoustic suspension type
Maximum
Input Power : 100 W
Sensitivity: 102 dB
Frequency
Response: 25 - 22,000 Hz
Crossover
Frequency: 800; 5,000; 10,000 Hz
Crossover
Network: 12 dB/oct
Impedance: 8 Ω
Dimensions
(W x H x D): 16-1/4" x 25" x
11"
Weight: 49,4 lbs
Special
Features: Built-in 3-step tone selector
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