Tender Specification: PT-70 Horn-loaded, passive loudspeaker system with 2-way technology Horn-loaded, passive loudspeaker system with 2-way technology, equipped with two 12” low-mid chassis in compression chamber, horn loaded and with a 1.4” high frequency compression driver. Fully neodymium. The loudspeaker system has a Constant Directivity Horn with a defined beam dispersion of either 90° x 50° or 60° x 50°. The system is also equipped with an integrated, phase-optimized crossover with active, semiconductor circuit (IPC technology) for high frequency driver protection. The loudspeaker system can be manually switched between cardioid and vented operation. It also has a mid-range waveguide system for suppressing unwanted side lobes in the vertical acoustic axis. The loudspeaker housing is made from multiplex birch plywood, with steel brace reinforcement and a black, scratch-resistant polyurethane coating. Can be supplied, on request, in all RAL Classic colours. Optionally available with a polyurethane coating that has an additional UV protective layer and waterproof membrane for increased protection against environmental impact, weather and mechanical wear and tear. For tripod use and flown applications, the loudspeaker system is equipped with two suspension fittings for Quicklock flying brackets and AEROQUIP rigging hardware, as well as two ring eyelets for safety. A bracket for pole-operation is optionally available. Connections: two Neutrik NL4 Speakon Electroacoustic Features acoustic design: horn-loaded passive speaker system, 2-way, vented, CDT (Convertible Dispersion Technology – switchable between cardioid and vented operation), sidelobe suppression by means of a midrange-waveguide components: 2 x 12" long excursion speakers working in compression chamber and horn, 1.4” compression driver on CD-Horn with self-resetting IPC[*]-HF protection, neodymium magnets power rating (nominal) [1]: 900 W power rating (program) [2]: 1800 W power rating (peak) [3]: 3600 W maximum SPL [3]: 140 dB frequency range [4]: 52 Hz – 20 kHz nominal dispersion (h x v) [5]: 90° x 50° or 60° x 50° nominal impedance: 4 Ohms features enclosure: multiplex birch plywood, reinforced with steel braces protection grille: steel, ball impact resistant, powder coated rigging points: 2 x suspension rail for Quicklock flying bracket and AEROQUIP rigging hardware, 2 x eyebolt for safety connections: 2 x Neutrik NL4 Speakon connectors standard colours: scratch-proof polyurethane coating, black front design: hexagonally perforated steel grille, backed by acoustically transparent foam dimensions (W x H x D): 400 x 800 x 450 mm weight [6]: approx. 39 kg optional features optional colours: all RAL Classic colours weather protection: polyurethane coating with additional UV-resistant finish, water-repellent speaker cone impregnation CAAD simulation data: EASE, Ulysses [1] according to IEC-60268-5 long term [2] according to IEC-60268-5 short term [3] peak, 20 ms with bandpass filtered pink noise signal according to IEC 60268-2at one octave above the lower limit of the frequency range [4] -10 dB under anechoic half-space conditions with speaker-preset [5] horizontal x vertical at -6 dB [6] net weight without optional equipment [*] Intelligent Protection Circuit: voltage-controlled semiconductor circuit protecting the HF-driver from overload, highly effective and with a very short attack time Manufacturer: Fohhn Audio AG Model: PT-70