Krell Industries LAT series Owner'S Manual Download Page 2

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The LAT Series
Lossless Acoustic Transducers
Owner’s Reference, v03.0

Krell Industries, Inc.
45 Connair Road
Orange, CT 06477-3650 USA

TEL 203-799-9954
FAX 203-891-2028
E-MAIL [email protected]
WEBSITE http://www.krellonline.com

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

Krell Industries, Inc., its subsidiaries, and authorized agents. Krell CAST

™

, Krell Current Mode

™

, Krell HEAT

™

, and LAT

™

are trademarks of Krell

Industries, Inc.

All other trademarks and tradenames are registered to their respective companies.

P/N 305139

Summary of Contents for LAT series

Page 1: ...O W N E R S R E F E R E N C E L A T 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: ...he 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 Krell Industries Inc its subsidiaries and authorized agents Krell CAST Krell Current Mode Krell HEAT and LAT are trademarks of Krell Industries Inc All rights reserved All other trademarks and tradenames are registered ...

Page 3: ...rms SECTION TWO Unpacking and Placement page 7 Opening the LAT 1 and the LAT C Shipping Crate Opening the LAT 2 Shipping Box 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: ...rill Figure 3 page 15 LAT 1 Back and Side Panels Figure 4 page 16 LAT C Front Panel and Grill 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: ... expectations of those listeners Loudspeakers are an integral link in an audio system With the right loudspeakers you hear music with its original definition precision and clarity Krell s lossless technology combines the benefits of enclosure design materials selection and electronics design and configuration to ensure that you hear music exactly as it was recorded nothing more nothing less With t...

Page 6: ...T has made this dream a reality When I looked for but could not find a loudspeaker that offered the impact immediacy and resolution of CAST components I decided to build one myself The first Krell loudspeaker the LAT 1 uses the best of acoustical engineering elec trical engineering and materials science to enhance music reproduction I have taken care at every turn to ensure that every part of a LA...

Page 7: ...dustry The most discriminating audiophiles and product reviewers have consistently recognized Krell components for standard setting performance The Lossless Acoustic Transducer LAT represents the next era at Krell Industries the era of loudspeaker design and manufacture which will join the ongoing legacy of Krell amplifiers For two decades Krell C E O Dan D Agostino has built amplifiers legendary ...

Page 8: ...d LAT C loudspeakers in a home theater system Crossover enclosure and driver technologies used in the LAT 1 have been applied to the design of the 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 tech...

Page 9: ...eeter together on a single circuit board Each printed circuit board for a LAT loudspeaker is fashioned of 1 8 inch fiberglass with 4 ounce copper traces for superior current flow Air core inductors and banks of potted WIMA capacitors ensure tight tolerances and high linearity during high power levels Enclosure Continuing in the tradition of the Master Reference Subwoofer a LAT Series loudspeaker e...

Page 10: ...losure features wall thickness ranging from 0 75 to 1 0 inch The curvature of the cabinets is designed to absolutely minimize the effects of internal standing waves and external high frequency diffraction The vented cabinet of the LAT 2 features two rear bass ports Resembling the LAT 1 ports in design the LAT 2 ports are precisely dimensioned flared and positioned with respect to the woofer to eli...

Page 11: ...state of the art Krell preamp processor and matching amplifiers and loud speakers that reproduce two channel and multi channel sources with audiophile sound quality placing listeners in the middle of a lifelike environment The crossover consists of a dedicated circuit board for each group of drive units woofers midranges and tweeters Each crossover network employs impedance correction circuitry th...

Page 12: ... LAT C loudspeaker mea sures 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 The shipping crate is specially designed to open safely and easily The LAT ...

Page 13: ...o the top of the grill box 4 Lift the grill box off the loudspeaker and set aside 1 person needed 5 Carefully lift the loudspeaker out of the crate do not remove the protective sleeve at this time and place it on the floor 3 4 people needed In the LAT 1 grill box with the grill you will find 4 stainless steel spikes 1 bubble level 2 binding post knobs 1 7 16 in nut driver In the LAT C grill box yo...

Page 14: ...ft the cardboard cap straight up and off the shipping box exposing the interior cardboard box a shallow box with generous flaps The flaps are secured by plastic strapping A packet containing the Owner s Reference and warranty card is affixed to a top layer of foam packing 4 Cut the band of plastic strapping and fold the flaps open 5 Remove the top layer of foam packing exposing the LAT 2 in its pr...

Page 15: ...stage that is both deep and wide with little or no toe in required Figure 1 on page 11 illustrates a representative placement scenario Note the position of the loudspeakers with respect to the rear and side walls The closer a loudspeaker is to the rear wall the more pronounced the bass response To minimize unwanted reflected sound and maximize the width and depth of the soundstage be careful not t...

Page 16: ...1 Two Channel LAT Placement Scenario 1 3 2 1 Left Front Loudspeaker 2 Right Front Loudspeaker 3 Optimum Listening Position A representative placement scenario for a pair of LAT 1 loudspeakers or a pair of LAT 2 loudspeakers ...

Page 17: ...l the grill locator pins align with the two holes on the loudspeaker cap 6 Gently guide the pins into the holes You hear a click when the grill is in place Note Be careful not to scratch the surface of the loudspeaker with the grill locator pins To Detach the Loudspeaker Grill The loudspeaker grill remains in place while you play music However if you wish to move the loudspeaker first detach the l...

Page 18: ... back just enough to insert the front stationary spike no knob IMPORTANT Two people are needed to safely tilt the loudspeaker to install the front stationary spike 4 Turn the front spike by hand until it is secure do not over tighten 5 Place the bubble level on the loudspeaker cap 6 Adjust the rear articulating spikes until the bubble indicates the loudspeaker is level To Install the Foot Leg and ...

Page 19: ...l 1 11 13 13 2 4 5 5 6 9 10 3 7 8 14 14 14 14 14 14 12 15 15 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 9 Spikes 10 Base 11 Grill 12 Grill Bar 13 Grill Block 14 Grill Hole 15 Grill Locator Pins ...

Page 20: ...5 P4 P2 M8 M9 IN M1 M2 P1 L1 IN OUT OUT R19 R20 M22 M12 OUT P6 P4 OUT C29 C30 P3 P5 M16 R17 R18 M18 R15 R16 M20 R12 R13 R14 C33 C32 C31 C28 C27 L3 C26 R10 R9 R11 M9 L1 M7 M8 M4 M4 C21 C20 C22 C23 C24 C25 C16 C17 C14 R8 R5 L4 R1 R2 R3 R4 R6 R7 C18 C15 C19 C4 C3 C13 M3 P25002 M2 IN C2 P2 C8 C11 C12 C10 C9 C1 P1 C7 C5 IN C6 Krell industries c June 2000 M23 M6 M17 M19 M21 M13 M14 M12 M12 M10 M6 M15 16...

Page 21: ...Grill 35 28 28 32 32 29 30 30 34 26 26 24 24 33 35 34 26 26 33 27 25 27 31 24 Grill 25 Grill Block 26 Grill Hole 27 Grill Locator Pin 28 Proprietary Driver Woofer 29 Midrange Tweeter Sub enclosure gray area 30 Driver Midrange 31 Driver Tweeter 32 Cabinet Material 33 Cap 34 Leg 35 Foot ...

Page 22: ... P1 P1 C10 C10 C9 C9 M6 M6 M6 M6 M23 M23 M10 M10 M23 M23 M6 M6 M6 M6 M23 M23 M12 M12 C18 C18 C15 C15 C19 C19 C4 C4 L4 L4 R1 R1 R2 R2 R3 R3 C3 C3 C13 C13 R5 R5 R4 R4 R6 R6 L3 L3 M6 M6 M23 M23 M13 M13 M12 M12 M6 M6 M23 M23 M14 M14 M6 M6 R8 R8 R10 R10 R11 R11 R9 R9 M23 M23 M15 M15 M6 M6 M6 M6 M23 M23 M17 M17 R7 R7 M 2 3 M 2 3 M6 M6M 2 0 M20 R15 R15 R16 R16 M22 M22 M12 M12 R19 R19 R18 R18 R20 R20 R17 ...

Page 23: ...y of a Loudspeaker continued Figure 6 LAT 2 Front Panel and Grill 52 Cap 53 Driver Tweeter 54 Driver Woofer 55 Cabinet Material 56 Base 57 Grill 58 Grill Bar 59 Grill Locator Pin 60 Grill Hole 55 52 56 53 54 57 58 60 60 59 59 ...

Page 24: ...Figure 7 LAT 2 Back and Side Panels continued 19 62 65 64 62 61 63 64 61 Ribbed Configuration 62 Multi port Design 63 Logo Label 64 Loudspeaker Binding Posts 65 High pass Low pass Crossover gray area ...

Page 25: ... signal linearity while minimizing resistance and inductance High current polypropylene film capacitors are used exclusively in the audio signal path Similarly the resistors in the crossover networks are connected in parallel to mini mize parasitic inductance and maximize current capacity and power dissipation Oversized high power metal oxide and wirewound resistors are used exclusively All the in...

Page 26: ...um box that separates them from the woofers and each unit is bolted to the back of the baffle Standing waves are eliminated because the midrange and woofer boxes minimize parallel surfaces and because the baffle s aluminum structure absorbs vibrations The result is clear distinct sound in high mid and low frequencies Multi port Design In the LAT 1 and LAT 2 the computer optimized multi port design...

Page 27: ...ng intro duced into the system 3 Locate the loudspeaker binding posts on the LAT back panel 4 Connect the loudspeaker cable from the positive binding post on the LAT to the positive channel output on the amplifier Connect the loudspeaker cable from the negative binding post on the LAT to the negative channel output on the amplifier IMPORTANT Do not disconnect signal cables when the amplifier is on...

Page 28: ...ered conversation to the roar of a jet take off The soundtrack plays a key role in the action seen on the screen and its content is becoming increasingly complex with each theatrical release LAT loudspeakers address the demands of these soundtracks in three ways superior power handling ultra fast response and high resolution at low levels Krell HEAT provides an electronic transcription of the sour...

Page 29: ...Krell HEAT Home Theater Technology continued 1 8 2 5 6 7 3 4 1 Left Front Loudspeaker LAT 1 2 Right Front Loudspeaker LAT 1 3 Master Reference Subwoofer 4 Center Loudspeaker LAT C 5 Screen 6 Left Rear Loudspeaker LAT 2 7 Right Rear Loudspeaker LAT 2 8 Optimum Listening Position ...

Page 30: ... period must be presented to obtain warranty service The warranty begins on the date of the original retail purchase as noted on the bill of sale or receipted invoice from an authorized Krell dealer or distribu tor Previously owned equipment when re purchased from an authorized Krell dealer or distributor has the balance of the original warranty based on the origi nal date of manufacture The warra...

Page 31: ...any Krell product damaged by accident abuse misuse natural or personal disaster or unauthorized modification 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 wil...

Page 32: ... Service Department have been made in advance Proof of purchase will be required for warranty validation at the time of hand delivery IMPORTANT Use the original packaging to ensure the safe transit of the product to the factory dealer or distributor 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 nons...

Page 33: ...KRELL INDUSTRIES INC 45 CONNAIR ROAD ORANGE CT 06477 3650 USA ...

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