Subwoofer HQsing SW150

The HQsing SW150 is a premium 15-inch active subwoofer that combines powerful low-frequency performance with an elegant wood cabinet and vintage-inspired design. Built for customers who want deeper, more immersive bass without sacrificing the refined look of their entertainment space, the SW150 is an ideal match for premium home karaoke, Hi-Fi music, and home theater systems.

Its large 15-inch woofer reaches down to an impressive 18Hz, delivering deep, room-filling bass that brings greater weight and impact to music, movies, and karaoke. Powered by a built-in Class D amplifier, the SW150 delivers 400W RMS and up to 800W peak power for clean, controlled, and powerful low-frequency performance.

With an adjustable 40Hz–200Hz crossover and 0° / 180° phase control, the SW150 can be easily tuned to blend smoothly with different speaker systems and room setups.

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Setup

1. Place the SW150 on the floor near your main speakers, and keep objects from blocking the speaker face.
2. Power off all equipment and connect the sub output of your amplifier or digital processor to the SW150's input.
3. Plug in the SW150, turn on the amplifier first, then turn on the subwoofer.

Tuning

1. Set the SW150's volume knob low, then raise it gradually until the bass blends with the main speakers.
2. Set the crossover within 40Hz–200Hz: the smaller your main speakers, the higher the crossover point.
3. Try the phase switch at 0° and 180°, and choose the setting that gives tighter, clearer bass at your seat.

Care

• Wipe the wood cabinet with a soft, dry cloth; don't use harsh cleaning chemicals.
• Place the speaker in a dry spot away from direct sunlight and heat sources.
• Turn off and unplug when not in use for long periods.