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Professional Power Amplifier

Professional Power Amplifier

Effcient Power, Excellent Performance
 1U Design
 90% Efficient
 PFC Power Supply
 Comprehensive Protection
Product Specifications
Parameter A35 A50 A75
Power Supply Range AC100~240V 50Hz~60Hz AC 220V 50Hz AC 220V 50Hz
Surge Protection Differential mode: 1KV, Common mode: 2KV Differential mode: 1KV, Common mode: 2KV Differential mode: 1KV, Common mode: 2KV
Standby Power Consumption < 5W < 8W < 8W
Power Consumption (1/8) 120W 180W 235W
Power Consumption (1/3) 280W 430W 540W
Output Power (8Ω) 350W×2 (1) 500W×2 (1) 700W×2 (1)
Output Power (4Ω) 700W×2 1000W×2 1200W×2
Output Power (BTL) 700W×1 (2) 1000W×1 (2) 1200W×1 (2)
Frequency Response 20Hz-20KHz 20Hz-20KHz 20Hz-20KHz
Total Harmonic Distortion < 0.05% @1KHz 1/3 power output < 0.05% @1KHz 1/3 power output < 0.05% @1KHz 1/3 power output
Signal-to-Noise Ratio > 100dB(A-weighted) > 100dB(A-weighted) > 100dB(A-weighted)
Input Impedance Balanced 20KΩ/ Unbalanced 10KΩ Balanced 20KΩ/ Unbalanced 10KΩ Balanced 20KΩ/ Unbalanced 10KΩ
Input Sensitivity 0.775Vrms/1.414Vrms 0.775Vrms/1.414Vrms 0.775Vrms/1.414Vrms
Max Input Level 3.5Vrms (13dBu) 3.5Vrms (13dBu) 3.5Vrms (13dBu)
Gain 36.7dB 36.7dB 36.7dB
Interfaces 2 line inputs, 2 line outputs, 2 power outputs 2 line inputs, 2 line outputs, 2 power outputs 2 line inputs, 2 line outputs, 2 power outputs
Operating Temperature, Humidity 0℃-45℃, ≤90%RH (non-condensing) 0℃-45℃, ≤90%RH (non-condensing) 0℃-45℃, ≤90%RH (non-condensing)
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.