Model |
REFERENCE 4 Meta |
Design |
Three-way bass reflex |
Drive units |
Uni-Q driver array: HF: 25 mm (1 in.) aluminium dome with MAT MF: 125 mm (5 in.) aluminium cone Bass units: LF: 4x 165 mm (6.5 in.) aluminium cone |
Frequency range free field (-6dB) |
Short port: 43 Hz - 45 kHz Long port: 40 Hz - 45 kHz |
Frequency range typical in room bass response (-6dB) |
33 Hz |
Frequency response (±3dB) |
48 Hz – 35 kHz |
Crossover frequencies |
450 Hz, 2.1 kHz |
Amplifier requirements |
50 - 400 W |
Sensitivity (2.83V/1m) |
88 dB |
Harmonic distort ion 2nd and 3rd harmonics (90dB, 1m) |
<0.5% 40 Hz - 100k Hz <0.2% 200 Hz - 2k Hz <0.1% 2k Hz - 20k Hz |
Maximum output (SPL) (peak sound pressure level at 1m with pink noise) |
116 dB |
Impedance |
4 (min. 3.2 ) |
Weight |
45.2 kg (99.6 lbs.) |
Dimensions (H x W x D) (with grille and terminal) |
205 x 1090 x 463 mm (8.1 x 42.9 x 18.2 in.) Dimensions |
Standard finishes |
Satin Walnut/Silver, High-Gloss White/Blue, High-Gloss White/Champagne, High-Gloss Black/Grey, High-Gloss Black/Copper |