The QUANTUM QE subwoofers impress with their very compact design. The QE622 subwoofer is almost sleek, yet with its aluminum cut-out basket and dual magnet of 2 x 40 oz, it has the capability to deliver very high volumes. The slightly larger subwoofers feature a powerful dual magnet of 2 x 63 oz and, like the QE622, are fitted with holes on the pole and also have a ventilated T plate for optimal cooling.

The QE622 features a large voice coil of 2.50 mm with an RMS power rating of 250 Watts, while the QE822 and QE1022 carry a voice coil of 2.5 64 mm with power ratings of 400 and 600 Watts RMS, respectively. The extremely long voice coils of 30 or 36 mm winding height allow for a linear travel of 10 mm. Both subwoofers are equipped with a dual voice coil of 2 x 2 ohms each, offering the option to adjust the impedance to 1 x 4 Ohm or 1 x 1 Ohm.

With their installation, they can also operate in series on amplifiers.

• Diameter: 16.5 cm
• Power Handling: 250-500 Watts RMS max
• Impedance: 2 x 2 Ohms
• Voice Coil: 50 mm
• Dual Magnet: 80 oz
• Weight: 2.27 kg
• Installation Depth: 117 mm
• Installation Opening: 150 mm