Krell LAT-1, LAT-2, LATC, MRS Brochure

LAT-1

The Krell Lossless Acoustic

Transducer (LAT) Series

are the first loudspeakers

engineered to Krell’s

exacting standards. They

are exceptional in their

ability to provide

accurate, high-powered

reproduction without the

distortions and informa-

tion loss that occur in

conventional loudspeaker

designs.

Lossless Acoustic Transducer

The Krell LAT Series fea­tures massive aluminum
construction. (The LAT-1
weighs approximately
250 lb.) The enclosures
range from 0.75 to 1.5
inches in wall thickness.
Internal midrange/tweet­er sub-enclosures, where
present, are also con­structed of aluminum at

1

least

/4-inch thick. The
cross-sectional shape of
the enclosure is deter­mined by a custom alu­minum extrusion, the
curvature of which is
designed to absolutely
minimize the effects of
internal standing waves
and external high­frequency diffraction.

There is nothing

“mystical” about the

design of the Krell

Lossless Acoustic

Transducer. The goal

was to design a

mathematically cor-

rect loudspeaker that

neither took any-

thing away from nor

added anything

superfluous to the

audio signal.

Achieving that goal,

nevertheless, took

Krell down an engi-

neering path never

before traveled in

the industry.

The sound is pure

Krell—as explosive,

delicate, and imme-

diate as music itself.

And it’s exactly what

you’d expect of

Krell’s first loud-

speaker system.

Shown without grille.

Available in black or silver.

Such extensive use of
aluminum may seem
extravagant, but the sonic
benefits are undeniable.
Other than concrete and
lead, which are not prac­tical choices, aluminum
possesses the ideal com­bination of structural
rigidity and resonance
damping characteristics.
Within the audio pass­band, Krell LAT cabinets
are sonically inert—
something that cannot be
said about any wood or
wood derivative.

The development of the Krell Lossless

Acoustic Transducer LAT-1 was, at once,

necessitated and made possible by the

Krell CAST™—Current Audio Signal

Transmission—technology. The LAT-1 is

uniquely capable of reproducing the

pure, exceptionally high resolution,

wide-bandwidth signal delivered by Krell

CAST components.

Separate crossover network

assemblies are used for each

driver complement (low,

mid, and high). All circuitry

1

is on

/8-inch thick glass

epoxy circuit boards with

4 oz. copper traces, ensuring

low microphonics, low resis-

tance, low inductance, and

high current handling.

1st-order network at 300 Hz

preserves transient response;

3rd-order Butterworth net-

work at 2.9 kHz optimizes

power response.

Network inductors are all

air-core pure copper

designs, the largest of which

is formed of 10-gauge wire,

measuring 5 inches in diam-

eter. Individually potted

polypropylene WIMA capac-

itors are used in parallel to

minimize inductance and

resistance, and improve

current handling.

1-inch (25 mm) tweeter delivers flat
response to 50 kHz. Central wave­guide optimizes dispersion character­istics.

3

5

/4-inch (15 cm) midrange features
an advanced multifaceted cone that
eliminates colorations induced by res­onance modes. A proprietary suspen­sion and extended voice coil assure
extremely linear performance.

D’Appolito midrange/tweeter configu­ration places the acoustic center at
ear level and ensures pinpoint­accurate stereo imaging.

Custom-designed 8-inch (21 cm)
woofer has extremely low free air res­onance, a composite carbon fiber
cone, and a butyl surround. The long­excursion design (1-inch peak to
peak) is optimized for vented cabinet
performance.

Both the midrange and woofer
employ cast magnesium-aluminum
frames and are video shielded.

System impedance curve is

extremely smooth, and sen-

sitivity is a high 91 dB SPL at

1 meter with 1 W input.

Custom gold-plated brass

binding post terminals assure

optimum signal transfer.