Omnitronic HR-20

Omnitronic HR-20 100V Line Horn Speaker – Technical Specifications & Setup Guide

System & Power Handling

• System Type: Round public address (PA) re-entrant horn speaker with built-in 100V line transformer

• Power Rating: 20 W RMS / 40 W Peak

• 100V Power Tappings: 20 W, 10 W, 5 W, 2.5 W (selectable via rotary selector / multi-core lead wiring)

• Low Impedance Mode: 8 Ω direct bypass setting

• Operating Voltage: 100V Line PA systems or 8 Ω low-impedance systems

Audio Performance & Transducers

• Transducer Type: High-efficiency voice-optimized compression driver with round horn flare

• Frequency Response: 300 – 10,000 Hz

• Sensitivity: 106 dB (1W/1m)

• Max SPL: 119 dB @ 1m

• Dispersion Angle: Conical directional horn coverage focused for maximum vocal clarity

Connectivity & Impedance Matching

• Connection Type: Open-ended connection cable tail via sealed rear cable gland

• Tapping Selection: Cable lead matching / selector for corresponding wattage taps (20W / 10W / 5W / 2.5W / COM / 8 Ω)

Controls & Adjustment

• Hardware Controls: Power tapping / impedance selection leads

• Orientation: Fully adjustable steel mounting U-bracket with locking bolts for precise directional alignment

Enclosure & Hardware

• Flare Material: UV-resistant ABS plastic housing (light grey finish)

• Mounting Hardware: Heavy-duty powder-coated steel U-bracket for wall, post, or ceiling mounting

• IP Rating: IP66 rated for complete protection against severe weather, dust, and heavy water jets

• Application Modes: Voice paging, public address, emergency evacuation, and acoustic signaling in warehouses, open-air car parks, sports grounds, and industrial facilities

Physical Specifications

• Dimensions (Diameter x Depth): 215 x 240 mm (8.5" x 9.4")

• Weight: 1.45 kg (3.2 lbs)

Accessories Included

• Adjustable Steel Mounting U-Bracket

• Integrated Sealed Cable Gland Assembly

• Operating Instructions Manual