PT-70 - Horn-loaded. Cardioid. Plug & Play.
Fohhn expands its Perform-Series with the PT-70 – a high performance, 2-way loudspeaker system with cardioid functionality that has been specially developed for concert sound and touring applications. The new loudspeaker makes an ideal sound system for concerts in tents, halls and clubs, or for town festivals and smaller open-air events. It also acts as a solid extension for line arrays and large Beam Steering systems. For the rental market, the PT-70 has many applications as a multifunctional loudspeaker system.
The PT-70 contains two 12“ chassis with compression chamber and horn, plus a 1.4“ compression driver with CD horn. It features a passive crossover which splits up the loudspeaker's audio signal. An Intelligent Protection Circuit (IPC), a voltage-controlled semiconductor circuit, protects the high frequency driver from overload - quickly and reliably.
The loudspeaker system also features Convertible Dispersion Technology (CDT), which is registered as a utility model. This technology enables the PT-70 to be switched between cardioid and vented operation. In cardioid mode, the sound dispersion at low-mid range frequencies is effectively reduced at the system's back. Thus first-class sound reproduction and speech intelligibility are ensured.
The PT-70 has been solely developed for operation with Fohhn speaker presets - especially with Fohhn Class D amplifier D-2.1500: The system's equalizing occurs within the Fohhn DSP, which also includes all of the protective functions that required for a safe operation. Together with this amplifier and Fohhn subwoofers, the PT-70 delivers excellent results.
|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) ||900 W|
|power rating (program) ||1800 W|
|power rating (peak) ||3600 W|
|maximum SPL ||140 dB|
|frequency range ||52 Hz – 20 kHz|
|nominal dispersion (h x v) ||90° x 50° or 60° x 50°|
|nominal impedance||4 Ohms|
|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 ||approx. 39 kg|
|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|
| according to IEC-60268-5 long term|
| according to IEC-60268-5 short term|
| peak, 20 ms with bandpass filtered pink noise signal according to IEC 60268-2at one octave above the lower limit of the frequency range|
| -10 dB under anechoic half-space conditions with speaker-preset|
| horizontal x vertical at -6 dB|
| 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|