ลำโพงเพดาน ยี่ห้อ TOA รุ่น PC-668R
- Rated Input : 15 W (100 V, 70 V line)
- Impedance Option : 100 V line: 670 Ω (15 W), 1 kΩ (10 W), 2 kΩ (5 W), 3.3kΩ (3 W) / 70 V line: 330 Ω (15 W), 670 Ω (7.5 W), 1 kΩ (5 W), 2 kΩ (2.5 W), 3.3 kΩ (1.5 W)
- Sensitivity : 96 dB (Pink Noise 500 Hz – 5,000 Hz / 1W, 1m)
- Frequency Response : 65 Hz – 20,000 Hz (at 20 dB below peak SPL)
- Speaker Component :20 cm (8″) double cone-type
- Dimensions for Fixing Hole : Mounting hole: Φ250±5 mm (Φ9.84″±0.2″) / Ceiling thickness: 5 – 25 mm (0.20″ – 1.98″)
- Speaker Mounting Method : Spring clamp
- Finish : Panel: Polypropylene resin, traffic white (RAL 9016 equivalent) / Grille: Surface-treated steel plate net, traffic white (RAL 9016 equivalent), paint
- Dimensions : Φ280 × 90 (D) mm (11.02″ × 3.54″)
- Weight : 0.96 kg (2.12 lb)
- Accessory : Paper pattern …1




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