DSPPA DSP3008A Horn Speaker Applied to Military Parade

DSPPA DSP3008A Horn Speaker applied to Military Parade

Hu Jintao, General Secretary of the CPC Central Committee, State President, and Chairman of the Central Military Commission, inspected the Chinese People’s Liberation Army (PLA) Garrison in the Hong Kong Special Administrative Region (HKSAR) at Shek Kong barracks on the afternoon of 29 June, with a total of 3,128 officers and soldiers from 15 formations. DSPPA DSP3008A outdoor all-weather horn speakers have been successfully applied to the sound reinforcement system for the 15th anniversary of Hong Kong’s return to the motherland. A large number of horn speakers have been lined up for 1km to cover the military formations and the audience areas, and also accepted the review of the highest leader. Accompanied by Zhang Shibo, the commander of Hong Kong Garrison, President Hu Jintao reviewed 15 formations of military brass band, guard of honor, army, navy, air force, servicewomen, foot formations, special forces, armament formations, signal corps, air echelons and etc..

2. Application Scene

3. Connection Diagram

4. Attainable Functions

1. Main/Backup Amplifier Switching

With main and backup amplifier switching, the public address system can guarantee the normal operation of horn speakers in a military parade or emergency. MP9821M can automatically detect the failure of the audio amplifier and switch between the “main amplifier”and the “backup amplifier”. With 4 identical independent channels, it can realize automatic detection and switching of the main/backup amplifier through each channel, or manual switching.

2. Terminal Devices

The terminal speaker used at the parade site is DSP3008A, an outdoor waterproof speaker. With a wide frequency response of 120Hz-18kHz and maximum sound pressure level of 124dB, as well as farther transmission distance, it can fully meet the requirements of the parade site. As the driver has excellent shock absorption effect, it can output clear and loud sound. With long service life and high quality, it can ensure long-term durability, and will never be deformed. Also, it is equipped with a three-point mounting bracket.

3. Lightning Protection

The broadcast system can be used outdoors as it can protect the field equipment from lightning when it encounters thunderstorm. With lightning protection, over voltage protection and leakage protection, as well as 4-channel input and output control, MP9824L will automatically cut off the output of all audio sources controlled by the unit to avoid loss when it is in the fault protection state.

5. Product List

Note: This table is for reference only.

6. Speaker Parameters

DSP3008A Horn Loudspeaker

Model	RMS Power	Input Voltage	Max SPL	Sensitivity	Freq.Response
DSP3008A	150W	100V	124±2dB	104±2dB	120Hz-18kHz

DSP3012A Horn Loudspeaker

Model	RMS Power	Input Voltage	Max SPL	Sensitivity	Freq.Response
DSP3012A	200W	100V	131±2dB	108±2dB	70Hz-18kHz

DSP3028A Horn Loudspeaker

Model	RMS Power	Input Voltage	Max SPL	Sensitivity	Freq.Response
DSP3028A	1000W	100V	140±2dB	110±2dB	100Hz-16kHz

DSP3010H Horn Loudspeaker

Model	RMS Power	Input Voltage	Max SPL	Sensitivity	Freq. Response
DSP3010H	25W/50W/100W/200W	100V	113dB±5dB	103dB±3dB	70Hz-18kHz