Bose® Panaray® LT Series III Loudspeakers
Reference Guide
Declaration of Conformity
Declaration of Conformity
We, the offerer:
Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA
acknowledge our sole responsibility, that the product:
Kind of equipment: |
Loudspeaker |
Type designation: |
Panaray® LT 3202® III Loudspeaker System |
|
Panaray LT 4402® III Loudspeaker System |
|
Panaray LT 9402TM III Loudspeaker System |
|
Panaray LT 9702® 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 |
|
2
Contents
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mounting Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
How to Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mechanical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LT 3202®-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LT 4402®-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LT 9402™-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
LT 9702®-III Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
LT MB24-III Modular Bass Loudspeaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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® LT Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
27 |
Painting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
28 |
To Replace the t1.4hp High-frequency Compression Driver in the Panaray LT 3202-III, |
|
LT 4402-III, LT 9404-III or LT 9702-III Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . |
29 |
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, |
|
LT 9402-III or LT 9702 -III Loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
33 |
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 |
3
Safety Information
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: This system is capable of supplying extremely high sound pressure levels (SPL).
WARNING: 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.
4
Safety Information
Mounting Guidelines
WARNING: The Panaray® LT Series loudspeakers must be attached to brackets or other mounting surfaces for 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 LT loudspeaker installation requires the use of either Bose® or non-Bose mounting 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 3/8-16 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) |
|
|
LT 9402TM-III Loudspeaker = 261 lb (118 kg) |
LT 9702®-III Loudspeaker = 381 lb (173 kg) |
LT MB24-III Loudspeaker = 520 lb (236 kg)
CAUTION: 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.
CAUTION: 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.
5
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® III speaker only). There are schematic diagrams of each loudspeaker and recommended amplifier power is provided.
Active Equalization — Each Panaray® LT Series loudspeaker must have active equalization. This section contains 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.
6
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-stan- dard 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 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.
7
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-stan- dard 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 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.
8
Mechanical Specifications
LT 9402™-III Loudspeaker
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 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.
9
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.
10
Mechanical Specifications
LT MB24-III Modular Bass Loudspeaker
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.
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.
11
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.
12
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