PA System Colum Speaker

PA System Colum Speaker

NAC-221A/231A/241A/251A/261A/271A
Outdoor Harmony, Amplified Brilliance!
 Waterproof Design
 Aluminium Housing
 Durable Performance
 Immersive Outdoor Audio
DESCRIPTION
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DIAGRAM
DIMENSIONS
TECHNICAL PARAMETER
Model No. NAC-221A NAC-231A NAC-241A
Input Power(100V) 10W/20W 20W/40W 30W/60W
Rated Impedance 1kΩ(10W)/500Ω(20W) 500Ω(20W)/250Ω(40W) 333Ω(30W)/167Ω(60W)
Sensitivity(1m/1W) 91dB 90±3dB 94dB
Frequency Response 80Hz - 18KHz 80Hz - 20KHz 80Hz - 18KHz
Loudspeaker Unit 5" woofer *1 + 1" Tweeter *1 5" woofer + 4" Tweeter 5" woofer *3 + 1" Tweeter*1
Speaker Installation method Bracket installation Bracket installation Bracket installation
Connection mode Cable Cable Cable
Material Aluminium Aluminium Aluminium
Size 323x170x148mm 442x170x148mm 590*170*148mm
Weight 3.2Kg 5.05Kg 5.84Kg
Operating Temperature -25℃ to 55℃ -25℃ to 55℃ -25℃ to 55℃
Storage Temperature -40℃ to 70℃ -40℃ to 70℃ -40℃ to 70℃
Relative Humidity ≤95% ≤95% ≤95%
Model No. NAC-251A NAC-261A NAC-271A
Input Power(100V) 40W/80W 50W/100W 60W/120W
Rated Impedance 250Ω(40W)/250Ω(40W) 200Ω(50W)/100Ω(100W) 167Ω(60W)/83Ω(120W)
Sensitivity(1m/1W) 94±3dB 97dB 98dB
Frequency Response 100Hz - 16KHz 80Hz - 18KHz 70Hz - 18KHz
Loudspeaker Unit 5" woofer *4+ 4" Tweeter*1 5" woofer *5+ 4" Tweeter*1 5" woofer *6+ 4" Tweeter*1
Speaker Installation method Bracket installation Bracket installation Bracket installation
Connection mode Cable Cable Cable
Material Aluminium Aluminium Aluminium
Size 736*170*148mm 854*170*148mm 986*170*148mm
Weight 7.95Kg 8.54Kg 9.94Kg
Operating Temperature -25℃ to 55℃ -25℃ to 55℃ -25℃ to 55℃
Storage Temperature -40℃ to 70℃ -40℃ to 70℃ -40℃ to 70℃
Relative Humidity ≤95% ≤95% ≤95%
FAQs
Does it support POE power supply system according to IEEE802.3af standard?
Yes, it supports POE power supply.
Is there VDO decode capability of 720p@30fps with H.264 compression?
It only supports to be selected the video resolution to VGA/720p/1080p on its webpage.
Is there a function to reduce Noise Elimination?
 The IP paging mic is built with the Noise reduction algorithm.
Can it work in cases where the server has network problems?
The IP paging mic supports offline calling without server software.
Support recording all incoming and outgoing call information. Including calls that have missed calls?
Yes, it supports
What should I do if other SPON® IP audio devices cannot be identified by the built-in web server of SPON® IP paging console?
  • Please check if the communication protocol of other SPON® IP audio devices has been set to NAS protocol, since the built-in web server can only identify other devices via NAS protocol.
     

Which Audio Formats are supported by SPON IP public address system? How much bandwidth is used?
  • The audio formats of IP Public Address are: MP2, MP3, AAC, etc. (MP2 and AAC are the standard designated audio formats of national DAB )
     

  • Compare of used Bandwidth: MP2: 256K-512K MP3: 64K-128K

Practical features of the IP PA system when applied to highways?
  • Background Music and Announcements: The system can play music, Emergency Broadcasting.
     

  • Situation Reports: It can announce daily activity schedules, provide key points about significant events, and give updates about essential convoys passing through.
     

  • Emergency Interjections: The system can be used to urgently intercept vehicles violating rules, grant access to special vehicles, and command on-site order during chaotic situations.
     

  • Emergency Paging: If a toll booth encounters an unexpected situation, operators can use a one-touch emergency call to the control center or neighboring toll stations for immediate assistance.

Where can digital IP public address systems be applied?
  • Schools, especially those equipped with campus networks.
     

  • Highway Toll Stations
     

  • Chain Supermarkets
     

  • Large Enterprise.
     

  • Office Buildings and Skyscrapers.
     

  • Rural Connectivity Projects.
     

  • Any location with network connectivity can benefit from the IP public address system.
     

How does SPON's IP public address system set itself apart from traditional PA systems?
  • High Audio Quality: The system offers pristine fidelity through its full digitalization, utilizing CD-like quality data file formats, which are perfectly consistent with computer output.
     

  • Personalization: Built on an Internet protocol, each audio endpoint can freely choose any channel for playback, with adjustable progress, allowing for point-to-point personalized programming.
     

  • Network Integration: From teachers' courseware production and arrangement to speeches and scheduled program broadcasts, everything can be operated remotely over the network.
     

  • Remote Functionality: The system supports remote broadcasting across different cities and even countries. As long as there's an internet connection, broadcasting can be initiated.