The Q Acoustics Concept 20 sits at the heart of the Concept range, offering a level of cabinet engineering usually reserved for speakers costing several times more. Designed in the UK, the Concept 20 was the first Q Acoustics speaker to feature Gelcore™ cabinet construction — a technique that has since become a hallmark of the brand’s higher-end models.
Gelcore™ Cabinet Construction
The Concept 20’s enclosure is built from two separate shells of MDF bonded together with a bespoke, non-setting adhesive. This compound converts the kinetic energy of cabinet vibration into heat, substantially reducing resonance and the colouration it causes. The result is a cabinet that is far quieter than a conventional single-skin MDF box, allowing the drive units to operate with less interference from the enclosure itself.
Drive Units
A 125mm mid/bass driver with a ceramic-coated paper cone handles the lower frequencies, crossing over at 2.9kHz to a 25mm soft-dome tweeter. The ceramic coating on the mid/bass cone adds stiffness without significant mass, improving transient response and reducing breakup modes. Bass loading is via a rear-firing reflex port, with supplied foam bungs for fine-tuning low-frequency output when the speakers are placed close to a rear wall.
Build & Finish
The Concept 20 is finished in a high-gloss lacquer available in Gloss Black or Gloss White. The deep-gloss finish is applied over the Gelcore cabinet, giving the speaker a premium look that belies its price point. Each speaker weighs 5.6kg and measures 260 × 170 × 280mm (H × W × D overall), making it compact enough for shelf placement, though Q Acoustics recommend their dedicated Concept 20 stands for optimum performance.
What the Press Says
- What Hi-Fi? Awards 2014 — Best Stereo Speaker £200–£400
- “Impressive clarity, seamless presentation.” — What Hi-Fi? ★★★★★
| Speaker Type | 2-way reflex bookshelf |
| Bass Unit | 125mm ceramic-coated paper cone |
| Treble Unit | 25mm soft dome |
| Frequency Response | 64Hz – 22kHz |
| Crossover Frequency | 2.9kHz |
| Sensitivity | 88dB (1W / 1m) |
| Nominal Impedance | 6 ohms |
| Minimum Impedance | 4 ohms |
| Recommended Amplifier Power | 25 – 75W |
| Cabinet Construction | Gelcore™ (dual MDF shells with resonance-damping adhesive) |
| Dimensions (H × W × D) | 260 × 170 × 280mm (overall) |
| Weight | 5.6kg per speaker |
| Finishes | Gloss Black, Gloss White |
| Also Available As | Gloss Black |