L-ACOUSTICS ARCS Manual V2.0 13-02-03 507 SPECIFICATIONSFrequency Response: 63 - 18k Hz +/- 3 dB50 - 20k Hz (-10 dB)Sensitivity: LF: 98 dB SPL (63 - 800 Hz)(2.83 Vrms @ 1m) HF: 109 dB SPL (800 - 18k Hz)Nominal Impedance: LF: 8 ohmsHF: 8 ohmsPower Rating: LF: 54 Vrms 375 Wrms 1500 WpeakHF: 29 Vrms 100 Wrms 400 WpeakAmplification: LF: 750 W minimum (8 ohms)1500 W minimum (4 ohms)2250 W minimum (2.7 ohms)HF: 400 W minimum (8 ohms)800 W minimum (4 ohms)1200 W minimum (2.7 ohms)System Output: 1 enclosure: 128 dB (continuous, unweighted, 1 m, 2WLO preset)2 enclosures: 133 dB (continuous, unweighted, 1 m, 2WLO preset)4 enclosures: 137 dB (continuous, unweighted, 1 m, 2WLO preset)Nominal Directivity: 22.5∞ horizontal (symmetrical)60∞ vertical (asymmetrical: 20∞ down x 40∞ up)Components: LF: 1 x 15" weatherproof loudspeaker(bass-reflex loaded, 3" voice coil)HF: 1 x 1.4î compression driver mounted on DOSC waveguide and lensMaterial: Baltic birch plywood (15, 18 and 24 mm). Sealed, screwed and rabbetedangles, internally braced cabinet constructionFinish: Maroon-grayGrill: Black epoxy perforated steel with acoustically transparent foamFeatures: Integrated flying hardware, handlesDimensions : 820 mm (Height) x 440 mm (Front) x 190 mm (Rear) x 652 mm (Depth)(32.3" x 17.3" x 7.5" x 25.7î)Weight: 57 kg (125.7 lbs)