Q Acoustics Q SUB100 Subwoofer
Key Features
Product Description
A bigger space demands bigger bass - and that’s exactly what the Q SUB100 provides. Its 10in driver and effortless performance make it the perfect low-frequency partner for our Concept loudspeakers, as well as every other medium-sized passive speaker in our line-up.
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.
Flexible 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.
Source 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.
Classic 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.
The 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.
Specifications
| Speaker Type | Active Subwoofer |
| Enclosure Type | Infinite Baffle |
| Bass Driver | 254mm (10") |
| Effective Volume | 23.5L |
| Max SPL @ 1m | 111dB |
| Frequency Response | 32Hz – 250Hz |
| Low-Pass Crossover | 40Hz – 250Hz |
| Peak Amplifier Power | 500W |
| Continuous Amplifier Power | 250W |
| THD @ Rated Power | 0.09% |
| Input Sensitivity | 300mV RMS (Max Gain) |
| Maximum Input Level | 2.1V RMS |
| Input Impedance | 20kΩ |
| Noise Floor | 50μV (A-Weighted) |
| Dimensions (H × W × D) | 350 × 350 × 382 mm |
| Weight | 16.7kg |