The first in a new series, the Q B12 mates a long-throw 12-inch driver with a 220-watt Texas Instruments TPA3255 Class D amplifier in a sealed MDF enclosure measuring about 16 x 16 x 17.5 inches. The amplifier is designed to “minimize distortion across the board” and works in tandem with an active limiter that prevents the subwoofer from overloading.
Q Acoustics uses a special ‘dart brace’ to reinforce the cabinet and reduce resonance and vibrations, while a custom die-cast aluminium heat sink supports and cools the amplifier and power supply. The minimalist rear panel has controls for phase and crossover, which can be set between 70 and 225 Hz, and cleverly conceals all connections behind a panel with cables running out from the bottom of the subwoofer.
Initial specs peg the B12’s operating at 28-300 Hz.
- Drive unit: 305mm (12in) high-excursion and stiffness paper, straight-sided cone.
- Peak Amplifier Power: 440 W
- 2 Years Warranty by Q Acoustics Malaysia
- Continuous Amplifier Power: 220 W
- Power type: Class D
- Frequency range: 28 Hz – 300 Hz
- Crossover frequency range: 70 Hz – 225 Hz
- Input impedance: 13 kΩ
- Input sensitivity: 150 mV
- Enclosure type: Infinite baffle
- Enclosure material: MDF
- Dimensions: 40 x 40 x 44.6 cm (hwd)
- Weight: 18.5 kg
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