Bose LT Series III, Bose Panaray Loudspeakers manual LT 4402-III Loudspeaker Product Description

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Acoustical Specifications and Wiring

LT 4402®-III Loudspeaker Product Description

The Bose® Panaray® LT 4402®-III loudspeaker is a mid/high-frequency device designed for medium to long throw distances. The LT 4402-III loudspeaker offers a 44˚ horizontal by 38˚ vertical dispersion pattern which is ideal for highly reverberant spaces.

When arrayed correctly, LT 4402-III loudspeakers behave sonically as a large, single source of sound energy. This coherent wavefront provides full fidelity and even-coverage at critical mid- and high-frequencies throughout the coverage area of the array.

Each Panaray LT 4402-III loudspeaker uses two V2 mid-frequency drivers and a 1.4" com- pression driver mounted on a 40˚H x 40˚V constant directivity waveguide.

The LT 4402-III loudspeaker can be operated in passive or bi-amplified modes.

•In passive mode, the internal passive crossover network is utilized, and a single amplified signal is connected to the loudspeaker.

•In bi-amplified mode, the mid-frequency and high-frequency drivers are accessed through separate pins on the Neutrik NL4 connectors.

LT 4402-III speaker with grille Active equalization of the LT 4402-III loudspeaker can be provided by using the Panaray LT 4402-III EQ card or the Panaray System controller with presets for each Panaray speaker and combination of speakers. A parametric equalizer can replicate the active equalization curve on the following page, along with a high-pass filter and low pass filter as shown.

LT 4402-III Acoustical Specifications

LT 4402-III speaker without grille

 

Passive

Bi-Amped

 

 

 

 

 

 

 

Mid

 

High

Power Handling1

140W

140W

 

75W

 

 

 

 

 

Impedance

8 Ω

8 Ω

 

8 Ω

 

 

 

 

 

Sensitivity2 (at 1W @ 1m)

108 dB SPL

106 dB SPL

 

107 dB SPL

 

 

 

 

 

Maximum SPL3

130 dB SPL

128 dB SPL

 

126 dB SPL

(pink noise @1m @ rated power)

 

 

 

 

 

 

 

 

 

 

 

 

Mid Frequency

 

 

Recommended Crossover

 

HPF: 160 Hz, Butterworth, 4th order

 

 

Internal Crossover @ 1.6 kHz

LPF: 1600 Hz, Butterworth, 4th order

 

 

High Frequency

 

 

 

 

 

 

HPF: 1600 Hz, Butterworth, 4th order

 

 

 

LPF: 20 kHz, Butterworth, 4th order

 

Frequency Range4 (± 3 dB)

 

180 Hz - 16 kHz

 

 

 

 

 

 

Beamwidth

 

Horizontal: 44°, Vertical: 38°

 

(-6dB point, average 800 - 5 kHz)

 

 

 

 

 

 

 

 

 

 

 

How our loudspeakers are measured

1. Power Handling

Full bandwidth pink noise, meeting the IEC Standard #268-5, is applied to the loudspeaker and amplified to a level at the loudspeaker terminals corresponding to the power handling of the loudspeaker. The loudspeaker must show no visible damage or measurable loss of performance after 100 hours of continuous testing.

2. Sensitivity

Full bandwidth pink noise is applied to the loudspeaker with its active equalization curve and amplified to a level at the loudspeaker terminals corresponding to 1 watt as referenced to the nominal impedance. The average sound pressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.

3. Maximum SPL

Full bandwidth pink noise is applied to the loudspeaker with its active equalization curve and amplified to a level at the loudspeaker terminals corresponding to the long-term rated power handling of the speaker. The average sound pressure level (dB-SPL) is mea- sured at 1 meter from the speaker in an anechoic environment.

4. Frequency Range

Sine waves are injected into the loudspeaker and the level is adjusted to 1 watt, as referenced to the nominal impedance, and the level measured at 1meter. Resulting graph is smoothed by 0.05 octave-band.

LT 4402-III speaker rear

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Contents Bose Panaray LT Series III Loudspeakers Declaration of Conformity Declaration of ConformityContents Safety Information Read the instructionsMounting Guidelines How to Use This Reference Guide Mechanical Specifications LT 3202-III LoudspeakerLT 4402 -III Loudspeaker LT 9402-III Loudspeaker LT 9702-III Loudspeaker LT MB24-III Modular Bass Loudspeaker Acoustical Specifications and Wiring Recommended Wire GaugesInternal Configurations Acoustical Specifications and Wiring To reconfigure your LT 3202-III loudspeaker only To reconfigure your LT MB24-III modular bass loudspeaker LT 3202-III Loudspeaker Product Description LT 3202-III Acoustical SpecificationsLT 3202-III Loudspeaker Configurations LT 3202-III Loudspeaker Active Equalization CurvesLT 4402-III Loudspeaker Product Description LT 4402-III Acoustical SpecificationsLT 4402-III Loudspeaker Configurations LT 4402-III Loudspeaker Active Equalization CurvesLT 9402-III Loudspeaker Product Description LT 9402-III Acoustical SpecificationsLT 9402-III Loudspeaker Configurations LT 9402-III Loudspeaker Active Equalization CurvesLT 9702-III Loudspeaker Product Description LT 9702-III Acoustical SpecificationsLT 9702-III Loudspeaker Configurations LT 9702-III Loudspeaker Active Equalization CurvesLT MB24 Loudspeaker Product Description LT MB24-III Acoustical SpecificationsLT MB24-III Loudspeaker Configurations LT MB24-III Loudspeaker Active Equalization CurveLT Series III Mid/High Loudspeakers Active EqualizationOther methods of providing active equalization LT MB24 Modular Bass LoudspeakerService Information Panaray LT Replacement PartsPainting Information Service Information Remove the replacement diaphragm from its carton Service Information To Replace the V-2 Mid-frequency Driver in the Panaray LT Service Information Service Information Driver and Electronics Assembly LT 3202-III LoudspeakerLT 4402-III Loudspeaker LT 9402TM-III Loudspeaker 10 11 12 13 14 15 24 23 22LT 9702-III Loudspeaker LT MB24-III Loudspeaker

LT Series III, Bose Panaray Loudspeakers specifications

The Bose Panaray Loudspeakers LT Series III is a sophisticated audio solution tailored for both installed sound applications and portable use. Renowned for their high-quality sound, these loudspeakers cater to environments such as restaurants, bars, conference rooms, and outdoor venues, where exceptional audio clarity and coverage are crucial.

One of the standout features of the LT Series III is its sleek, low-profile design, allowing for discreet integration into various settings without sacrificing audio performance. This series is designed to deliver a consistent listening experience, even in challenging acoustic environments. With a wide frequency response, the LT Series III ensures that both music and speech are articulated with clarity and balance.

A defining technology in the LT Series III is the use of advanced driver arrays. The speakers incorporate multiple high-efficiency drivers that are optimally arranged to provide even sound distribution across a wide area. This design minimizes the need for multiple loudspeakers in a space, simplifying installation while maximizing audio coverage and minimizing dead spots.

The LT Series III also features Bose's proprietary EQ processing technology. This ensures that the speakers deliver enveloping sound while preventing unwanted feedback and distortion, which is particularly useful in public addresses and live performances. Additionally, these speakers can be easily powered by standard amplifiers, making them adaptable to various audio systems without requiring specialized equipment.

Durability is another key characteristic of the LT Series III loudspeakers. Constructed with robust materials, they are designed to endure the rigors of both indoor and outdoor use. The weather-resistant casing allows for deployment in open-air settings, ensuring that the speakers maintain their performance in diverse environmental conditions.

The versatility of the Bose Panaray Loudspeakers LT Series III makes them ideal for a multitude of applications. Whether enhancing the atmosphere in a casual dining environment or providing sound reinforcement at corporate events, these speakers are engineered to deliver reliable, high-quality audio.

In conclusion, the Bose Panaray Loudspeakers LT Series III stands out in the crowded field of audio solutions. With their advanced technologies, superior sound quality, and durable design, they represent a solid investment for anyone seeking to elevate their auditory experience in both fixed and portable applications.
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