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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: C-Mark
  • Model Number: AT18A
  • Power amplifier: Built-in Class D
  • Cabinet construction: bandpass

Packaging & Delivery

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active loudspeaker (subwoofer) with built-in digital amplifier, special designed bandpass construction, powerful tight bass

C-Mark AT18A Active Loudspeaker (Subwoofer)



AT18A is a digital active/self-powered loudspeaker combining digital power amplifier and hifi loudspeaker. It features high efficiency, high power output, nice timbre, perfect protection, good compatibility of electromagnetism. The working power supply voltage ranges from AC 100 V to 240 V, 50Hz to 65Hz. It can be directly placed beside stage with loudspeaker stand on the top.



1. Plug & play, user-friendly, clear indication, easy manipulating for nonprofessionals.
2. AT18A is very powerful with rich and flexible sound driven by a 18" woofer.
3. With built-in digital/Class D power amplifier, AT18A features best sound, high efficiency and high reliability.
4. Complete protection of short circuit, over current, over heat, over or under voltage, power limiting, temperature limiting prevents users from worry of malfunction.
5. Suitable for many applications like night club, live performance, entertainment, company, school and army etc.


Technical Specifications

Model: AT18A

Power: 900W RMS

Frequency Response: 40Hz-200Hz

SPL: 100dB

Line input sensitivity: 0dB

Input impedance: 22K ohm

Power Supply: AC 100V - 240V 50/60Hz.

Net weight: 83Kg

Gross weight: 88.7Kg.

Net dimension (W x D x H): 580 x 785 x 830mm.

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