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Q-Acoustics | Q Sub 100 Subwoofer

£699.00

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Product Information

Dimensions and Weight

Q Sub 100 Subwoofer
Dimensions (HxWxD)
350 x 350 x 382 mm (13.7 x 13.7 x 15 in)

Weight (per loudspeaker)
16.7 kg (36.8 lbs)

Features & Specifications

Q Sub 100 Subwoofer
Enclosure type
Infinite baffle

Bass unit diameter
254 mm (10 in)

Effective volume
23.5 litres

Max SPL @ 1 m
111 dB

Frequency response (-6dB)
32 Hz – 250 Hz

Low pass crossover range
40 Hz – 250 Hz

Peak amplifier power
500 W

Continuous amplifier power
250 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

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.

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.

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.