Bose LT 4402, LT MB24 III, LT 9702, LT 9402TM User Manual

Bose

Panaray

LT Series III Loudspeakers

Reference Guide

Declaration of Conformity

Bose

Corporation, The Mountain, Framingham, MA 01701-9168 USA

acknowledge our sole responsibility, that the product:

Declaration of Conformity

We, the offerer:

Kind of equipment: Loudspeaker Type designation: Panaray

Panaray LT 4402 Panaray LT 9402 Panaray LT 9702

LT 3202

III Loudspeaker System

Panaray LT MB24 III Modular Bass Loudspeaker System

in accordance with EMC Directive 89/336/EEC and Article 10(1) of the Directive,

is in compliance with the following norm(s) or document(s)

Technical regulations: EN55103-1, EN5103-2

Accredited by Bose Corporation

18 June 2004 Nic Merks

Bose Products B.V Vice President, Bose Europe Nijverheidstraat 8, 1135 GE Edam Manufacturer s authorized EU representative The Netherlands

Contents

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Mounting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

LT 3202 LT 4402

LT 9402™-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

LT 9702 LT MB24-III

Acoustical Specifications and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Recommended Wire Gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Internal Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

To configure your LT 9702-III, LT 9402-III, or LT 4402-III loudspeaker: . . . . . . . . . . . . . . . . . . 13

To reconfigure your LT 3202-III loudspeaker (only): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

To reconfigure your LT MB24-III modular bass loudspeaker: . . . . . . . . . . . . . . . . . . . . . . . . . . 15

LT 3202-III Loudspeaker Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

LT 3202-III Acoustical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

LT 3202-III Loudspeaker Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

LT 3202-III Loudspeaker Active Equalization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

LT 4402-III Loudspeaker Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LT 4402-III Acoustical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LT 4402-III Loudspeaker Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

LT 4402-III LoudspeakerActive Equalization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

LT 9402-III LoudspeakerProduct Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

LT 9402-III Acoustical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

LT 9402-III Loudspeaker Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

LT 9402-III LoudspeakerActive Equalization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

LT 9702-III LoudspeakerProduct Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

LT 9702-III Acoustical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

LT 9702-III Loudspeaker Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

LT 9702-III LoudspeakerActive Equalization Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

LT MB24 Loudspeaker Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

LT MB24-III Acoustical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

LT MB24-III Loudspeaker Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Active Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Other methods of providing active equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

LT Series III Mid/High Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

LT MB24-III Modular Bass Loudspeaker: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Panaray

Painting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

To Replace the t1.4hp High-frequency Compression Driver in the Panaray LT 3202-III,

To Replace the t1.4hp High-frequency Compression Driver Diaphragm . . . . . . . . . . . . . . . . . . 30

To Replace the V-2 Mid-frequency Driver in the Panaray LT 3202-III . . . . . . . . . . . . . . . . . . . . 32

To Replace the V-2 Mid-frequency Driver in the Panaray LT 4402-III,

To Replace the 12" Woofer in the Panaray LT MB24-III Modular Bass Loudspeaker . . . . . . . . 34

Driver and Electronics Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

LT 3202-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

LT 4402-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

LT 9402-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

LT 9702-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

LT MB24-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

-III

Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

-III

Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

-III

Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Modular Bass Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

LT Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

LT 4402-III, LT 9404-III or LT 9702-III Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . 29

LT 9402-III or LT 9702

-III

Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Safety Information

Please read this safety information before installing, connecting, or operating the Bose

Panaray

LT loudspeakers.

Read the instructions.

Read and keep all safety and operating instructions for future reference, including this manual.

Follow cautions.

For your safety, follow all cautions and warnings in this manual and on the units.

Protect cables.

Always route cables to avoid pinching or cutting by heavy or sharp objects.

Follow the mounting guidelines.

Mount the loudspeaker cabinets according to the instructions in the Mechanical Speciﬁcations section of this manual. Failure to do so may result in permanent damage to the system components or physical injury to anyone near the system.

WARNING: WARNING:

This system is capable of supplying extremely high sound pressure levels (SPL).

The rear of the Panaray LT loudspeakers can become very hot during normal use. Do not attempt to service or move an LT loudspeaker until the rear of the loudspeaker has cooled. Turn down volume and turn off the power amplifier before connecting the loudspeaker.

WARNING:

All Panaray LT loudspeakers require active equalization. Do not operate the loudspeakers without the proper active equalization for the particular loudspeaker and operating configuration. Failure to do so may result in permanent damage.

Mounting Guidelines

WARNING:

permanent or seasonal use. Such mountings, typically in overhead locations, involve risk of personal injury if either the mounting system or the loudspeaker attachment fails. Installation of the mounting system must be performed in accordance with all applicable building codes including local codes. Consult the local authority before installing this product.

The Panaray

Safety Information

LT Series loudspeakers must be attached to brackets or other mounting surfaces for

The LT loudspeaker installation requires the use of either Bose products. While Bose Corporation cannot be held responsible for the proper design and use of non-Bose mounting systems, we offer the following information and guidelines for the permanent installation of your Panaray LT loudspeakers:

• Obtain your mounting system from a reputable manufacturer. Select a system design that works for your loudspeaker and its intended use.

• Before using a custom-designed mounting system, have a licensed professional engineer review the design and fabrication for structural integrity and safety in the intended application.

• The threaded attachment points on the top, bottom, and sides of each loudspeaker have an SAE

-16 inch thread with at least 18 usable threads.

• Lock washers or a locking compound intended for hand disassembly (such as Loctite 242) should be used for a vibration resistant assembly.

• Use a safety cable, separately attached to the cabinet, at a point not in common with the load-bearing attachment points of the mounting system to the loudspeaker. This is recommended even if not required by local regulation. If you are unfamiliar with the proper design, use, and purpose of a safety cable, consult a licensed professional engineer or a rigging professional.

• Additional loudspeakers may be suspended below the Panaray LT loudspeaker provided that:

• It employs all 8 threaded-insert hang points on the top and bottom to ﬂy and suspend the loudspeakers.

• The total weight of suspended loudspeakers and the Panaray LT loudspeaker does not exceed the working load limit (WLL) listed below:

LT 3202

-III Loudspeaker = 395 lb (179 kg)

LT 4402

-III Loudspeaker = 299 lb (135 kg)

or non-Bose mounting

LT 9402

-III Loudspeaker = 261 lb (118 kg)

LT 9702

-III Loudspeaker = 381 lb (173 kg)

LT MB24-III Loudspeaker = 520 lb (236 kg)

CAUTION:

minimum. Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties. Do not use an M10 fastener; although it is very similar to an SAE they are not interchangeable. M10 washers may be used in place of

CAUTION:

Use only graded hardware. Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC

-16,

-inch washers.

The fasteners should be tightened using torque not to exceed 50 pounds.inch (5.6 Newton-meters).

Over-tightening the fastener could result in irreparable damage to the cabinet and create an unsafe assembly.

CAUTION:

The fastener should be long enough to engage no fewer than 16 threads of the attachment point . Using a fastener that is too short provides inadequate holding power and may strip the mounting threads, resulting in an unsafe assembly. Confirm that at least 16 full threads are engaged in your assembly.

CAUTION:

Do not attempt to alter the threaded attachment points. Do not attempt to re-thread the attachment points to accommodate any other thread size or type; doing so will compromise the safety of the installation while permanently damaging the loudspeaker.

How to Use This Reference Guide

The reference guide is divided into several sections. Below is a listing of each section and a brief description of what is contained in each section:

Mechanical Speciﬁcations — This section gives mechanical drawings, dimensions, weights, center of gravity, insert

locations, and load ratings for each cabinet. This is intended to provide the information necessary for a qualiﬁed installer to suspend or mount the loudspeakers.

Acoustic Speciﬁcations and Wiring Information — This section provides acoustic speciﬁcations for each loudspeaker.,

and details how to change the conﬁguration of the loudspeakers from passive to bi-amp or bi-amped dual mid-range mode (3202 provided.

Active Equalization — Each Panaray

information for providing active equalization.

Service Information — This section provides ordering information for replacement transducers and diaphragm kits.

Instructions on replacing the transducers and replacing the diaphragm are given. Exploded view assembly drawings are given for each loudspeaker. Information on painting the cabinets is provided.

III speaker only). There are schematic diagrams of each loudspeaker and recommended ampliﬁer power is

LT Series loudspeaker must have active equalization. This section contains

Mechanical Specifications

LT 3202

-III Loudspeaker

Materials and Construction:

The Panaray

LT 3202-III speaker is a mid/high-frequency loudspeaker designed for extremely long throw distances. The LT 3202-III speaker has the narrowest beamwidth characteristics of all the LT cabinets (30˚ H x 20˚ V).

The LT 3202-III speaker is built with 10-ply marine-grade Baltic birch wood. Sixteen threaded stainless steel hang points (4 top, 4 bottom, and 4 each side) allow for easy rigging with industry-standard hardware. It has been manufactured with a textured black ﬁnish and includes a contoured stainless steel grille. Both cabinet and grille can be painted to match the surroundings.

Dimensions:

35.9''D x 22.5''W x 42.2''H (913 mm x 573 mm x 1072 mm)

Weight:

Unpacked: 194 lb (88 kg) Packaged: 241 lb (109 kg)

Load Limits:

The LT 3202-III loudspeaker has a working load limit (WLL) of 395 lb (179 kg)

Hardware:

• Use only graded hardware.

• Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC minimum.

• Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties.

• Do not use an M10 fastener; although it is very similar to an SAE washers may be used in place of

-inch washers.

-16, they are not interchangeable. M10

Safety and Regulatory Compliance:

This loudspeaker complies with ANSI/EIA-636 “Recommended Loudspeaker Safety Practices” and with EU EMC Directives 89/336/EEC for CE marking.

Mechanical Specifications

LT 4402

-III Loudspeaker

Materials and Construction:

The Panaray

LT 4402-III speaker is a mid/high-frequency loudspeaker designed for medium-to-long throw distances. The LT 4402-III speaker features a tightly controlled 40 ˚ H x 40 ˚ V beamwidth.

The LT 4402-III speaker is built with 10-ply marine-grade Baltic birch wood. Sixteen threaded stainless steel hang points (4 top, 4 bottom, and 4 each side) allow for easy rigging with industry-standard hardware. It has been manufactured with a textured black finish and includes a contoured stainless steel grille. Both cabinet and grille can be painted to match the surroundings.

Dimensions:

24’’H x 18.5’’W x 34’’W (610 mm x 471 mm x 884 mm)

Weight:

Unpacked : 111 lb (50 kg) Packaged : 142 lb (64 kg)

Load Limits:

The LT 4402-III loudspeaker has a working load limit (WLL) of 299 lb (135 kg)

Hardware:

• Use only graded hardware.

• Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC minimum.

• Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties.

• Do not use an M10 fastener; although it is very similar to an SAE may be used in place of

-inch washers.

-16, they are not interchangeable. M10 washers

Safety and Regulatory Compliance:

This loudspeaker complies with ANSI/EIA-636 “Recommended Loudspeaker Safety Practices” and with EU EMC Directives 89/336/EEC for CE marking.

LT 9402™-III Loudspeaker

Mechanical Specifications

Materials and Construction:

The Panaray

LT 9402-III speaker is a mid/high-frequency loudspeaker designed for medium-to-long throw distances. The LT 9402-III speaker features a tightly controlled 90˚H x 40˚V beamwidth.

The LT 9402-III speaker is built with 10-ply marine-grade Baltic birch wood. Sixteen threaded stainless steel hang points (4 top, 4 bottom, and 4 each side) allow for easy rigging with industrystandard hardware. It has been manufactured with a textured black ﬁnish and includes a contoured stainless steel grille. Both cabinet and grille can be painted to match the surroundings.

Dimensions:

23.7’’D x 22.5’’W x 34.6’’H (604 mm x 572 mm x 879 mm)

Weight:

Unpacked : 113 lb (51 kg) Packaged : 146 lb (66 kg)

Load Limits:

The LT 9402-III loudspeaker has a working load limit (WLL) of 261 lb (118 kg).

Hardware:

• Use only graded hardware.

• Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC minimum.

• Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties.

• Do not use an M10 fastener; although it is very similar to an SAE washers may be used in place of

/8-inch washers.

-16, they are not interchangeable. M10

Safety and Regulatory Compliance:

This loudspeaker complies with ANSI/EIA-636 “Recommended Loudspeaker Safety Practices” and with EU EMC Directives 89/336/EEC for CE marking.

Mechanical Specifications

LT 9702®-III Loudspeaker

Materials and Construction:

The Panaray® LT 9702-III speaker is a mid/high-frequency loudspeaker designed for shorter throw distances. The LT 9702-III speaker offers a 90˚H x 70˚V pattern which is the broadest beamwidth of all the LT loudspeakers.

The LT 9702-III speaker is built with 10-ply marine-grade Baltic birch wood. Sixteen threaded stainless steel hang points (4 top, 4 bottom, and 4 on each side) allow for easy rigging with industry-standard hardware. It has been manufactured with a textured black ﬁnish and contoured stainless steel grille. Both cabinet and grille can be painted to match the surroundings.

Dimensions:

14.5’’D x 22.5’’W x 34.6’’H (368 mm x 572 mm x 879 mm)

Weight:

Unpacked: 96 lb (43 kg) Packaged: 124 lb (56 kg)

Load Limits:

The LT 9702-III loudspeaker has a working load limit (WLL) of 381 lb (173 kg).

Hardware:

• Use only graded hardware.

• Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC minimum.

• Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties.

• Do not use an M10 fastener; although it is very similar to an SAE 3/8-16, they are not interchangeable. M10 washers may be used in place of 3/8-inch washers.

Safety and Regulatory Compliance:

This loudspeaker complies with ANSI/EIA-636 “Recommended Loudspeaker Safety Practices” and with EU EMC Directives 89/336/EEC for CE marking.

LT MB24-III

Materials and Construction:

The Panaray® LT MB24-III speaker is a compact, low-frequency loudspeaker designed exclusively for use with the Panaray LT mid/high loudspeaker family.

The LT MB24-III speaker is built with 10-ply marine-grade Baltic birch wood. Sixteen threaded stainless steel hang points (4 top, 4 bottom and 4 each side) allow for easy rigging with industrystandard components. It has been manufactured with a black textured ﬁnish and a contoured stainless steel grille. Both the cabinet and the grille can be painted to match the surroundings.

Modular Bass Loudspeaker

Mechanical Specifications

Dimensions:

25.5’’D x 20’’W x 28.1’’H 646 mm x 508 mm x 712 mm)

Weight:

Unpacked: 130 lb (59.19 kg) Packaged: 147 lb (66.9 kg)

Load Limits:

The LT MB24 modular bass loudspeaker has a working load limit (WLL) of 520 lb (236 kg).

Hardware:

• Use only graded hardware.

• Fasteners should be SAE Grade 5 or ASTM designation A354, Grade BC minimum.

• Unmarked machine fasteners should not be used for mounting system assembly, as there is no way to determine their physical properties.

• Do not use an M10 fastener; although it is very similar to an SAE 3/8-16, they are not interchangeable. M10 washers may be used in place of 3/8-inch washers.

Safety and Regulatory Compliance:

This loudspeaker complies with ANSI/EIA-636 “Recommended Loudspeaker Safety Practices” and with EU EMC Directives 89/336/EEC for CE marking.

Acoustical Specifications and Wiring

Recommended Wire Gauges

The loudspeakers should be connected to the ampliﬁer outputs with heavy-gauge wire. To minimize power loss, larger diameter wire should be used for longer lengths. The following chart can be used as a guide.

Length of Wire Wire Gauge

25 feet 16

40 feet 14

60 feet 12

100 feet 10

150 feet 8

Note: All wiring shall conform to applicable local and/or national electrical codes.

Verify that the polarity of the ampliﬁer outputs are connected properly to the loudspeaker.

Internal Conﬁgurations

All Panaray® loudspeakers ship with a selectable internal crossover.

Each speaker ships in the passive position, but you can change the conﬁguration from passive to bi-amped or bi-amped dual mid-range (LT 3202®-III only).

• In passive mode — the internal passive crossover network is utilized, and a single ampliﬁed signal is connected to the loudspeaker. This requires only one set of input connections and one ampliﬁer channel.

• In bi-ampliﬁed mode — the mid-frequency and high-frequency drivers are accessed through separate pins on the NL8 connector. Two sets of connections and two ampliﬁer channels are required. Bi-ampliﬁed mode allows additional control of the balance between the mid-frequency and high-frequency levels.

• In bi-ampliﬁed dual mid-range mode — the mid-frequency and high-frequency drivers are accessed through separate pins on the NL8 connectors. Three sets of connections and three ampliﬁer channels are required. Bi-ampliﬁed dual midrange allows independent control of two sets of V2 mid-frequency drivers as well as control of the high-frequency driver.

Note: There are no passive components in line when bi-amp or bi-amp dual mid-range configurations are selected.

All Panaray LT loudspeakers require active equalization. Do not operate the loudspeakers without the proper active equalization for the particular loudspeaker and operating conﬁguration. Failure to do so may result in permanent damage to the loudspeaker.

See the Active Equalization section for more details.

+ 28 hidden pages