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Sigma Acoustics Orchestra 2.9
- Specifications
- Speaker type: 3-way passive floorstanding loudspeaker.
- Nominal impedance: 8 Ω.
- Sensitivity: 94–95 dB (2.83 V / 1 m).
- Frequency response: 19 Hz – 30 kHz.
- Recommended amplifier power: 15 – 500 W (per channel).
- Crossover: Low-phase 6 dB/octave design optimized for phase coherence.
- Drivers:
- • Air Motion Transformer (AMT) neodymium tweeter
• Midrange driver with Alnico magnet and papyrus paper fiber cone
• 15″ fiberglass woofer
- Dimensions (W × H × D): Approximately 440 × 1360 × 660 mm.
- Weight: ~110 kg each.
- Cabinet type: Bass-reflex multi-enclosure design with decoupled modules.
