Q SUB80
Smaller rooms with smaller speakers still deserve big, well-controlled bass for listening to music or watching movies. The Q SUB80 with its 8in driver is the ideal partner for M20 or M40 active speakers or 3000c and 5000 Cinema Packs in ones or twos.
Buy from our partners
KEY FEATURES
- Q SUB80 has exceptional bass power to cabinet size ratio.
- This subwoofer is more powerful than the previous QB 12 model.
- Digital Signal Processing (DSP) allows easy system and room integration with optimise settings for class-leading, distortion-free performance.
- Clever, dual phase and delay controls allow the fine-tuning of the signal alignments for flexible room placement.
- DSP identifies the input signal and automatically adjusts system gain, enhancing performance regardless of the connected source.
- A low pass filter with frequency adjustment ensures seamlessly integration with any partnering speaker system.
- A custom-designed amplifier module features four digital power amplifier stages that improves efficiency by dissipating less heat, enhances speaker control, and reduces output impedance.
OVERVIEW
Introducing Q SUB series
Whether as part of a Q Acoustics home cinema set-up, adding effortless bass extension to your existing 7.2, 5.1 or 2.1 system or intensifying the low end on your powered/active speakers, these new subwoofer models will deliver the dramatic to movies and music.
Meet the Q SUB family
Whatever the size of your home cinema room or the power of your system, Q Acoustics has the right-sized model to fill your space with powerful, impactful but nuanced and controlled bass. The new subwoofer family consists of the 8-inch Q SUB80, the 10-inch Q SUB100 and a 12-inch model, Q SUB120.
Flexible room placement
Placement in a room can impact sound arrival timing, while phase alignment issues can arise even with adjacent subwoofer placement, affecting system frequency response. The Q SUB range uses Digital Signal Processing (DSP), alongside fine delay adjustments and phase inversion switch, to address these integration challenges. This technology enables users to optimise settings for a class-leading performance, ensuring seamless integration with other speakers without needing professional installation.
Source detection
Subwoofers must accommodate a wide variety of sound input sources, including stereo preamp outputs or mono feeds from active speakers or home cinema systems. The Q SUB range uses a complex algorithm inside the DSP to identify the input signal type - stereo or mono and the level - and automatically adjusts system gain. This ensures optimal signal to noise levels and dynamic range, enhancing performance regardless of the connected source.
Classic finish to compliment your interior
The trio’s minimalist and clean design means they can blend discreetly into the room or proudly displayed to fit seamlessly into any interior space. The Q SUB series arrives in two modern but classic finishes: Satin Black with a black grille or Satin White with a grey grille. The new models join the slimline 3060S to complete Q Acoustics’ wider subwoofer family.
Power amplifier
The Q SUB amplifier module, custom-designed by Q Acoustics, includes a DSP, power amplifier, and power supply. It features four digital power amplifier stages in a parallel bridge-tied load (PBTL) configuration, enhancing efficiency and speaker control by reducing output impedance and heat dissipation. This design can deliver up to 300W continuous and 600W peak power, with exceptional total harmonic distortion (THD) performance of less than 0.1% up to 300W.
Frequency response adjustment
Subwoofers need an adjustable low pass filter to match their upper frequency response with the diminishing bass of other speakers. The Q SUB range features a low pass filter with frequency adjustment from 40 Hz to 250 Hz, setting the -6 dB point. This wide range ensures the Q SUB models can seamlessly integrate with and complement the low-frequency response of any partnering speaker system.
Driver design
The drive units feature a heavy-duty steel chassis, paper cone, and rubber surround. Bass unit diameters are 203mm (Q SUB80), 254mm (Q SUB100), and 305mm (Q SUB120). Voice coils are 38mm for Q SUB80/100 and 50mm for Q SUB120, with an aluminium demodulation ring for reduced inductance-induced modulation distortion.
Cabinet design
An infinite baffle (sealed box) design delivers tight, focused bass, coupled with DSP for precise acoustic tuning. With no port, placement near walls and furniture is easier. The Q SUB cabinets use 18mm high-density MDF with a 36mm double-thickness baffle for rigidity. Internal dart bracing enhances stability, reduces cabinet ballooning, and ensures optimal performance under high internal pressure.
SPECIFICATIONS
- Enclosure type: Infinite baffle
- Bass unit diameter: 203 mm (8 in)
- Effective volume: 13.9 litres
- Max SPL @ 1 m: 107 dB
- Frequency response (-6dB): 36 Hz – 250 Hz
- Low pass crossover range: 50 Hz – 250 Hz
- Peak amplifier power: 400 W
- Continuous amplifier power: 200 W
- THD @ rated power: 0.09%
- Input sensitivity (max gain): 300 mv rms
- Maximum input level: 2.1 V rms
- Input impedance: 20 kΩ
- Noise floor (A wtd): 50 μV
- Dimensions (HxWxD): 315 x 315 x 347 mm (12.4 x 12.4 x 13.6 in)
- Weight (per loudspeaker): 15 kg (33 lbs)
Explore the Series
Introducing the Q SUB series
Q Acoustics has the right subwoofer to fill your space with powerful, but controlled and nuanced bass, whatever the size of your room or power of your system. The new Q SUB family consists of the 8-inch Q SUB80, the 10-inch Q SUB100 and the 12-inch Q SUB120.
Explore the SeriesFlexible about placement
Badly positioned subwoofers can impact sonic timing and cause phase alignment issues. But Q SUB has digital signal processing, a phase inversion switch and delay adjustment to provide superb performance and smooth integration without professional installation.
Explore the SeriesSource detection
Subwoofers must work with input sources including stereo preamps, mono feeds from active speakers, and home cinema systems. Q SUB uses its processing power to identify the input signal type and level and automatically adjusts to deliver optimal performance.
Explore the SeriesClassic finishes
Q SUB’s minimalist clean design means it can blend discreetly into any room or proudly displayed. It arrives in two modern-yet-classic finishes: Satin Black with a black grille, or Satin White with a grey grille - joining 3060S to complete our subwoofer family.
Explore the SeriesThe power to perform
The custom-designed Q SUB amplifier module includes DSP, power amp and power supply. It has four digital power amp stages in a parallel bridge-tied load arrangement, enhancing efficiency and control by reducing output impedance and heat dissipation. This configuration can deliver up to 300 watts of continuous power and 600 watts peak, with exceptional total harmonic distortion numbers of under 0.1%.
Frequency response adjustment
Subwoofers need an adjustable low-pass filter to match their upper frequency response with the lowest bass of their partnering speakers. Q SUB features a low-pass filter with frequency adjustment from 40Hz to 250Hz - this wide range ensures Q SUB will seamlessly integrate with and complement the low-frequency response of any speaker system.
Rigorous driver design
The Q SUB drive units feature a heavy-duty steel chassis, paper cone, and rubber surround - driver diameters are 203mm for Q SUB80, 254mm for Q SUB100 and a mighty 305mm for Q SUB120. Voice coils are 38mm for SUB80 and SUB100, while SUB120 uses a 50mm version - each has an aluminium demodulation ring for reduced inductance-induced modulation distortion.
Uncompromised cabinet design
An infinite baffle, or sealed box, design delivers tight, focused bass especially when coupled with DSP for precise acoustic tuning, and placement near walls or furniture is easy as there’s no port. Q SUB cabinets use 18mm MDF with a 36mm baffle for rigidity, while internal dart bracing enhances stability and ensures optimal performance even under high internal pressure.