Q Acoustics Q SUB80 Active Subwoofer
Compact 8-inch sealed DSP subwoofer optimized for tight, controlled bass
Product Overview
The Q SUB80 is the smallest member of Q Acoustics’ new Q SUB series, representing a powerful yet compact option for enhancing bass in stereo or home theater systems.
Despite its modest size, it features DSP tuning, advanced amplifier design, and a sealed “infinite baffle” enclosure for tight, musical low-end response. :contentReference[oaicite:23]{index=23}
It is well suited for smaller rooms or systems where a large subwoofer would be overkill.
Key Features
- 8″ (203 mm) bass driver with heavy-duty steel chassis. :contentReference[oaicite:24]{index=24}
- DSP-based system including phase, delay adjustment, and auto source detection for seamless integration. :contentReference[oaicite:25]{index=25}
- Low-pass filter adjustable over 40 Hz – 250 Hz range. :contentReference[oaicite:26]{index=26}
- Sealed (infinite baffle) enclosure with robust 18 mm MDF and a 36 mm double-thick baffle to resist panel flexing. :contentReference[oaicite:27]{index=27}
- Internal “dart bracing” for cabinet rigidity and reduction of cabinet resonances. :contentReference[oaicite:28]{index=28}
- Smart power-saving standby after 20 minutes of inactivity, plus 12 V trigger option. :contentReference[oaicite:29]{index=29}
Technical Specifications
| Enclosure Type | Infinite baffle (sealed) :contentReference[oaicite:30]{index=30} |
|---|---|
| Bass Driver Diameter | 203 mm (8 in) :contentReference[oaicite:31]{index=31} |
| Effective Volume | 13.9 litres :contentReference[oaicite:32]{index=32} |
| Max SPL @ 1 m | 107 dB :contentReference[oaicite:33]{index=33} |
| Frequency Response (–6 dB) | 36 Hz – 250 Hz :contentReference[oaicite:34]{index=34} |
| Low-Pass Crossover Range | 40 Hz – 250 Hz :contentReference[oaicite:35]{index=35} |
| Peak Amplifier Power | 400 W :contentReference[oaicite:36]{index=36} |
| Continuous Amplifier Power | 200 W :contentReference[oaicite:37]{index=37} |
| THD @ Rated Power | 0.09 % :contentReference[oaicite:38]{index=38} |
| Input Sensitivity (Max Gain) | 300 mV rms :contentReference[oaicite:39]{index=39} |
| Maximum Input Level | 2.1 V rms :contentReference[oaicite:40]{index=40} |
| Input Impedance | 20 kΩ :contentReference[oaicite:41]{index=41} |
| Noise Floor (A-weighted) | 50 µV :contentReference[oaicite:42]{index=42} |
| Dimensions (HxWxD) | 315 × 315 × 347 mm (12.4 × 12.4 × 13.6 in) :contentReference[oaicite:43]{index=43} |
| Weight | ≈ 15 kg (~33 lbs) (approx as per reports) :contentReference[oaicite:44]{index=44} |
Usage Notes & Recommendations
Ideal for small to medium rooms, or where compact size is a priority.
Use the DSP controls (phase, delay, crossover) to align the subwoofer with your main speakers.
Because of the sealed design, its bass is tight and controlled, allowing placement closer to walls without port noise.
Care & Maintenance
Clean the exterior with a dry soft cloth. Avoid exposing to moisture.
Ensure ventilation for heat dissipation. Inspect connections and tighten occasionally.
Use floor spikes or rubber feet appropriately depending on flooring type.
