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Krell Industries LAT series Owner's Manual

Lossless acoustic transducers
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Summary of Contents for Krell Industries LAT series

  • Page 1 T H E L A T S E R I E S L O S S L E S S A C O U S T I C T R A N S D U C E R S ’...
  • Page 2 This product complies with the EMC directive (89/336/EEC) and the low-voltage directive (73/23/EEC). ® This product is manufactured in the United States of America. Krell is a registered trademark of Krell Industries, Inc., and is restricted for use by ™ ™ ™...

  • Page 3: Table Of Contents

    SECTION THREE: Anatomy of a Loudspeaker, page 14 Features and Benefits of the LAT Design SECTION FOUR: Connecting a LAT Series Loudspeaker to Your System, page 22 SECTION FIVE: Krell HEAT: Home Theater Technology, page 23 WARRANTY, page 25 RETURN AUTHORIZATION PROCEDURE, page 27...

  • Page 4: List Of Illustrations

    Figure 5, page 17 LAT–C Pivot Mechanism, Leg Assembly, and Crossovers Figure 6, page 18 LAT–2 Front Panel and Grill Figure 7, page 19 LAT–2 Back and Side Panels Figure 8, page 24 A Krell HEAT (Home Theater) System Placement Scenario...

  • Page 5: Foreword

    Foreword The design and manufacture of loudspeakers is a new venture for Krell, but the reasons for making them are not new at all. For more than two decades, Krell components have been the choice of discerning audiophiles all over the world. Krell customers care deeply about music, and they demand the most lifelike music reproduction possible.

  • Page 6: A Letter From Dan D'agostino

    Krell component. I designed the LAT loudspeakers to reproduce all the power and grace that a Krell system can deliver. A Krell system composed of LAT loudspeakers with my other Krell components provides the most thrilling, lifelike playback I have heard yet.
  • Page 7 With a keen understanding of this passionate drive, Krell Industries, Inc., was founded in 1980. Over the past two decades, Krell has earned a distinguished reputation for engineer- ing innovation and product excellence. The company’s history is replete with product introductions that have deeply impacted the high-end audio industry.
  • Page 8 LAT–2. Unparalleled Sonic Performance From the first Krell product — the KSA –100 — to the present, Dan D’Agostino has continually “pushed the envelope” of performance in his search for greater amplifier power, and now, loudspeaker response. His exploration of technologies, driven by his never-ending quest to elevate the standard of excellence, has resulted in break- through audio designs.

  • Page 9: Section One: About Krell

    — an exact reproduction of the audio amplifier’s output signal. The Krell Lossless Acoustic Transducer (LAT) is the latest innovation in a long line of Krell components. The innovative technologies and design of the LAT Series of loudspeakers includes sophisticated crossover networks, a precisely machined enclosure, and drivers designed to efficiently transmit power while negating distortions.
  • Page 10 An asymmetrical spider lowers distortion. The woofers, custom made for Krell and matched specifically to the enclosure, are operated without attenuation for maximum system efficiency and power transmission.
  • Page 11 Following are the definitions of key terms used in your owner’s reference manual. Technology Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than voltage domain. This unique technology provides the component with exceptional speed and a wide bandwidth.

  • Page 12: Opening The Lat-1 And The Lat-C Shipping Crate

    40.9 in. (103) cm wide by 12 in. (30.48 cm) high by 15 in. (38.1 cm) deep with an estimated weight of 200 lbs. (90.9 kg). Krell recommends that you have three to four people to safely move the loudspeaker to its place in the listening area. Two people are needed to remove the shipping crate top from its base.
  • Page 13 (SECTION TWO: Unpacking and Placement continued) With one person grasping each end of the shipping crate, pull steadily straight up. The crate top will slowly slide up and off. Set crate top aside. 2 people needed The loudspeaker sits in a protective sleeve on the crate base. On top of the loudspeaker is a wooden grill box that is shrink-wrapped.

  • Page 14: Opening The Lat-2 Shipping Box

    Opening the LAT–2 Shipping Box The LAT–2. Each LAT–2 shipping box measures 15.8 in. (40.1 cm) wide by 19.3 in. (49 cm) high by 20.3 in. (51.6 cm) deep. The combined weight of the shipping box and the loudspeaker is approximately 100 lbs. (45.5 kg). Each LAT–2 loudspeaker measures 10.5 in.
  • Page 15 Krell encourages you to experiment and find the loudspeaker placement that reflects your personal preference. A LAT loudspeaker is simple to set up and use. Its unique solid aluminum enclosure produces a soundstage that is both deep and wide, with little or no toe-in required.

  • Page 16: Figure 1

    Figure 1 Two-Channel LAT Placement Scenario A representative placement scenario for a pair of LAT–1 loudspeakers or a pair of LAT–2 loudspeakers. 1 Left Front Loudspeaker 2 Right Front Loudspeaker 3 Optimum Listening Position continued...
  • Page 17 Gently pull the bar straight out, so that the grill locator pins slide out of the holes on the loudspeaker cap. Remove the grill bar from the base of the loudspeaker. To protect the grill, Krell recommends placing it back in the grill box until you are ready to reinstall it. Note The grill should be cleaned periodically to remove accumulated dust.
  • Page 18 To Install the Spikes on the LAT–1 Each LAT–1 is shipped with 4 stainless steel spikes: two rear articulating spikes (with knob) and two (one long and one short) front stationary spikes (no knob). Use these spikes to stabilize and level the loudspeaker. These spikes are particularly important for sound quality if the loudspeaker will be placed on a carpeted floor.

  • Page 19: Figure 2

    THREE SECTION Anatomy of a Loudspeaker This section describes LAT features and benefits. Figure 2 LAT–1 Front Panel and Grill 1 Cap 2 Midrange/Tweeter Sub-enclosure (gray area) 3 D’Appolito Array 4 Driver (Tweeter) 5 Driver (Midrange) 6 Cabinet Material 7 Braces (dark gray area) 8 Proprietary Drivers (Woofers)

  • Page 20: Figure 3

    Binding Posts 20 Midrange/ OUT - OUT + Tweeter Sub-enclosure 21 High pass Crossover C7 C2 (gray area) Krell industries (c) June, 2000 P25001 22 Band pass Crossover – (gray area) 23 Low pass IN + IN - Crossover (gray area)

  • Page 21: Section Three: Anatomy Of A Loudspeaker

    (SECTION THREE: Anatomy of a Loudspeaker continued) Figure 4 LAT–C Front Panel and Grill 24 Grill 30 Driver (Midrange) 25 Grill Block 31 Driver (Tweeter) 26 Grill Hole 32 Cabinet Material 27 Grill Locator Pin 33 Cap 28 Proprietary Driver 34 Leg (Woofer) 35 Foot...

  • Page 22: Figure 5

    M6 M6 M5 M5 M4 M4 M3 M3 M2 M2 M1 M1 R9 R9 P25002 P25002 2000 2000 June, June, industries industries Krell Krell - IN - IN L1 L1 P25003 P25003 L1 L1 2000 2000 June, June, industries industries Krell...

  • Page 23: Figure 6

    (SECTION THREE: Anatomy of a Loudspeaker continued) Figure 6 LAT–2 Front Panel and Grill 52 Cap 57 Grill 53 Driver (Tweeter) 58 Grill Bar 54 Driver (Woofer) 59 Grill Locator Pin 55 Cabinet Material 60 Grill Hole 56 Base...

  • Page 24: Figure 7

    Figure 7 LAT–2 Back and Side Panels – 61 Ribbed Configuration 64 Loudspeaker Binding Posts 62 Multi-port Design 65 High pass/Low pass Crossover 63 Logo Label (gray area) continued...
  • Page 25 Litz wire for extended high-frequency linearity. Drivers LAT–1 drivers are custom-built to Krell specifications. The midrange cones have five doped cuts, providing strength without the distortion that occurs when the entire cone is doped. Woofer cones are reinforced with carbon fiber, which adds rigidity and damps cone resonance.
  • Page 26 Drivers: D’Appolito Array In the LAT–1, a special midrange/tweeter configuration places the acoustic center at ear level and ensures stereo imaging with pinpoint accuracy. The configuration also provides symmetrical vertical dispersion. As a result, the listening “sweet spot” remains the same whether listeners are sitting or standing. Loudspeaker Grill Design The bar and cord design of the loudspeaker grill decreases reflective surfaces and thus improves sound quality.
  • Page 27 FOUR SECTION Connecting a LAT Series Loudspeaker to Your System To connect the loudspeaker to your system: Make sure that all power sources and components are off before connecting system components. Neatly organize wiring between all system components. Separate AC wires from audio cables to prevent hum or other unwanted noise from being intro- duced into the system.
  • Page 28 The Krell Lossless Acoustic Transducer (LAT) loudspeakers are part of a whole family of loudspeakers newly designed by Krell. The LAT–C and the LAT– 2 are voiced pre- cisely for use with the LAT–1. Together with the Krell Master Reference Subwoofer,...

  • Page 29: Section Five: Krell Heat: Home Theater Technology

    (SECTION FIVE: Krell HEAT: Home Theater Technology continued) Figure 8 A Krell HEAT (Home Theater) System Placement Scenario 1 Left Front Loudspeaker ( LAT–1) 2 Right Front Loudspeaker ( LAT–1) 3 Master Reference Subwoofer 4 Center Loudspeaker ( LAT– C)

  • Page 30: Warranty

    If this product does not perform as warranted herein, the owner’s sole remedy shall be repair. In no event will Krell be liable for incidental or consequential damages arising from purchase, use, or inability to use this product, even if Krell has been advised of the possibility of such damages.
  • Page 31 Any disassembly, component replacement, perforation of chassis, updates, or modifications performed to the unit will void the warranty. In the event that Krell receives a product for warranty service that has been modified in any way without Krell authorization, all warranties on that product will be void.

  • Page 32: Return Authorization Procedure

    Krell may, at its discretion, return a product in new packaging and bill the owner for such packaging if the product received by Krell was boxed in nonstandard packaging or if the original packaging was so damaged that it was unusable.
  • Page 33 KRELL INDUSTRIES, INC. 45 CONNAIR ROAD ORANGE, CT 06477 -3650 USA...

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