| Design | 
Three-way bass reflex | 
| Drive Units | 
Uni-Q driver array | 
| HF Driver | 
25 mm (1 in.) aluminium dome with MAT | 
| MF Driver | 
125 mm (5 in.) aluminium cone | 
| LF Driver | 
2 x 165 mm (6.5 in.) aluminium cone | 
| Frequency Range | 
Short port: 38Hz - 45kHz, Long port: 35Hz - 45kHz | 
| Frequency Range (Typical In-Room Bass Response) | 
28Hz | 
| Frequency Response (±3dB) | 
43Hz – 35kHz | 
| Crossover Frequency | 
450 Hz, 2.1 kHz | 
| Amplifier Requirements | 
50 - 300W | 
| Sensitivity (2.83V/1m) | 
86dB | 
| Harmonic Distortion (90dB, 1m) | 
<0.5% 40Hz – 100kHz, <0.2% 200Hz – 2kHz, <0.1% 2kHz - 20kHz | 
| Maximum Output (Peak SPL at 1m with Pink Noise) | 
113.5dB | 
| Impedance | 
4 Ω (min. 3.2 Ω) | 
| Weight | 
51.3 kg (113.1 lbs.) | 
| Dimensions (H x W x D) with Grille and Terminal | 
1155 x 205 x 462 mm (45.5 x 8.1 x 18.2 in.) | 
| Dimensions (H x W x D) with Grille, Terminal & Plinth | 
1207 x 323 x 467 mm (47.5 x 12.7 x 18.4 in.) |