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Compare speakers at true scale
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Front view — side by side at true scale
AQ Acoustics Concept 300BSonus Faber Olympica I
Q Acoustics Concept 300vsSonus Faber Olympica I
The Sonus Faber Olympica I stands 37.0 cm tall — about 1.5 cm more than the Q Acoustics Concept 300 at 35.5 cm. On footprint the Sonus Faber Olympica I is the wider cabinet (21.0 cm versus 20.0 cm). At 87 dB against 84 dB, the Sonus Faber Olympica I is the easier load to drive and plays louder from the same amplifier. The Q Acoustics Concept 300 reaches deeper in the bass, down to 55 Hz versus 57 Hz.
| A | B | |
|---|---|---|
| Manufacturer | Q Acoustics | Sonus Faber |
| Model | Concept 300 | Olympica I G3 |
| HiFi ladder position | #100 of 211 bookshelf | #120 of 211 bookshelf |
| Height | 355 mm | 370 mm |
| Width | 200 mm | 210 mm |
| Depth | 400 mm | 370 mm |
| Weight | 14.5 kg | 11 kg |
| Enclosure | bass-reflex-rear | bass-reflex-rear |
| Drivers | 1× 28 mm tweeter (soft dome), 1× 165 mm mid-bass (coated paper cone) | 1× 28 mm tweeter (silk dome), 1× 165 mm mid-bass (paper cone) |
| Frequency — low | 55 Hz | 57 Hz |
| Frequency — high | 30000 Hz | 40000 Hz |
| Sensitivity | 84 dB | 87 dB |
| Impedance | 6 Ω | 4 Ω |
| Recommended amp | 25–200 W | 30–250 W |
| MAP (USD) | $6,399 / pair | — |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | qacoustics.com ↗ | sonusfaber.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.

