DESCRIPTION
The Atomik Audio Quasar 18S is a high-output professional subwoofer, engineered for audio rentals and fixed installation applications. Constructed from tour-grade plywood, its reinforced structure ensures maximum durability, making it well-suited for rigorous touring conditions.
Equipped with an 18-inch sub driver featuring a 4-inch voice coil, the Quantum 18S is designed to deliver exceptionally high SPL levels. Its bandpass enclosure optimizes low-frequency response and efficiency, providing deep, controlled bass reproduction with significant impact.
With a focus on precision acoustics and reliability, the Quasar Q18S excels in demanding live sound environments, offering consistent performance, powerful output, and a robust design tailored for professional use.




Features
- High SPL design.
- Easily manageable compact sub for the rental industry.
- 18” ferrite sub driver with a 4” voice coil.
- Two NL4 Speakon connectors on the rear.
- One NL4 Speakon connector on the front for cardioid operation.
- Heavy-duty 18mm marine plywood.
- Ergonomic design.
Technical Specifications
18″ ferrite driver with a 4” voice coil.
6th Order Bandpass
104 dB @ 1W / 1m
135.5 dB @ 1m
1400 watts long term continuous
8 ohms
-3dB 38Hz to 160Hz
746mm x 618mm x 799mm, 29.3″ x 24.3″ x 31.5″
54.6kgs / 120 lbs

Frequency & Phase Response – Raw

Frequency & Phase Response – Processed

Impedance & Phase Response
For more detailed information about this product, please refer to the documents listed below