Features Narrow Directivity. Splash-proof Construction. Rust Resistance. Beam-tilting Function. Built-in High-pass Filter. Description Product Description The TOA PW-1430DB Plane Wave Speaker is a flat speaker system equipped with a plane wave unit consisting of a diaphragm, buffer, magnet, and case, enabling radiation of sound in narrow horizontal and vertical directivity patterns. Since the Plane Wave Speaker can deliver sound output toward a limited target area. Suited for use in station platforms, escalator areas, and in such spaces as museums and art galleries where the reverberation time is long. A double-sided radiation type radiates sound both backward and forward. All metal parts are made of stainless steel, making the speaker rust-resistant. Compliant with IPX4 (IEC60529) water protection standards, the speaker is suitable for use in a covered outdoor space protected from the elements. The speaker comes with a beam-tilting function which makes it possible to shift sound radiation direction about five degrees downward of the horizontal axis, delivering clear audio in close proximity. Model: PW-1430DW Product Type: Plane Wave Speaker, White Type of Radiation: Double-sided radiation Rated Input: 30 W Rated Impedance: High impedance 100 V line: 330 Ω (30 W), 670 Ω (15 W), 1 kΩ (10 W), 2 kΩ (5 W) Rated Impedance: High impedance 70 V line: 170 Ω (30 W), 330 Ω (15 W), 670 Ω (7.5 W), 1 kΩ (5 W) Sensitivity: 88 dB (1 W, 1 m equivalent measured at 4 m, 1 - 10 kHz) 85 dB (1 W, 1 m measured at 1 m, 1 - 10 kHz Frequency Response: 250 Hz - 17.5 kHz (Beam tilting : FLAT, High pass filter: OFF) Directivity Angle: Horizontal: 19° (2 kHz, 1/3 octave band), Vertical: 78° (2 kHz, 1/3 octave band) Speaker Unit: Plane wave unit (152 × 214 mm (5.98" × 8.43")) × 4 Setting Switch: Beam tilting FLAT: 0° downward/DOWNWARD: 5° downward High pass filter (450 Hz, -12dB/oct): OFF/ON