Fohhn, PT-9, WaveLine, line array module, 2way twin-coaxial, 2x10" ND, 1x2" ND, Imp: 8 ohms, black

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Perfect sound and simple operation.

The Fohhn® WaveLine line array is a complete system consisting of perfectly developed speakers and specially adapted amplifiers andcontrol technology. The Perform WaveLine is a completely symmetric line array that is capable of generatingvirtually identical acoustic sound patterns on the right and left and can be alignedaccurately and symmetrically. The PT-9 operates with two of the most powerful 10” speakers (neodymium) currently on offer, which are positioned symmetrically so that the horn produces a dispersion angle of approximately 110° (twin coaxial). There is a diffraction gap between the two 10” speakers that separates the two bass reflex chambers with help from the multi-channel phase EQ. The spherical sound wave dispersed by the 2” tweeters is converted into a coherent wave front by the time delay in the multi channel phase EQ. The wave then exits the diffraction gap to produce a cylindrical wave across the entire frequency range. The 4” voice coils on the 2” high-frequency driver can produce a relatively deep crossover frequency (approx. 650 Hz), whereby the acoustic performance is drastically increased, preventing load dumps from 10” speakers at approx. 900 Hz.

>System amplifier<

The WaveLine system A2-2.100 2-channel DSP amplifier, 2 ohms stable, class H, lightweight (only 14 kg), switch mode power supply, 2U, 2x 2100W / 2 ohms. Remote operation via laptop or remote control devices FR-40.


We recommend using the Fohhn subwoofer system XS-4 and XS-4 passive to maximise system performance for live music events. Fohhn® DSP processor technology modulates the WaveLine Compact and Fohhn subwoofers perfectly. Digital Fohhn signal processors are integral components of active Fohhn subwoofers, Fohhn DSP amplifiers and Fohhn DSP controllers. DSP-controlled Fohhn devices can be controlled remotely from a central location in the room or on the stage via intuitive remote control units. Fohhn therefore offers a perfectly adapted sound system that fulfils all the requirements of a modern speaker system regarding design, sound quality and operating comfort in every respect.

>Optimal Planning. Perfect Realisation.<

Fohhn recommends EASE Focus Aiming Software by SDA (Software Design Ahnert GmbH) for simulating and measuring acoustic configurations. This two-dimensional acoustic simulation software realistically configures and arranges line arrays.The program, product-specific system file (Fohhn-WaveLine.efo) and the load evaluator (flying calculator) can be downloaded free of charge.


venues, opera, conference halls, theatres, churches, etc.


Type 2-way fullrange twin-coaxial line array system, bass reflex / horn-loaded
Frequency range 80 Hz – 18 kHz, +/- 3 dB
Power rating LMF 500 W, HF 120 W IEC Norm 268-5
Impedance LMF 8 ohms , HF 8 ohms
Recommended amplifier output: LMF 750 – 1500 W at 8 ohms, HF 200 – 480 W at 8 ohms
Dispersion horizontal 110°; vertical 0°–10° (depends on array setting – adjustable in 1° increments)
Sensitivity LMF 100dB (1 W / 1 m), HF 110 dB (1 W / 1 m)
Peak SPL (1m) individual System > 130 dB
Components 2x 10” ND, 3“ voice coil, water-resistant membrane; 1x 2” ND driver with 4” voice coil, WaveLine HF phase EQ
Connector 2x NL4MP Neutrik Speakon (+1/-1 for 10” speakers, +2/-2 for 2” driver)
Rigging/Fittings flying fixture integrated in housing; 2 recessed side handles; 2 front aluminium handles
Housing material multiply birch wood, 15 mm, aluminium cover and 4 mm base plate
Paint extremely wear-resistant textured paint, water-based Electro-galvanised powder coating, RAL9005 black; special colours from RAL colour palette available on request
Dimensions (H x W x D) housing without handles/flying fixture 300/200 x 672 x 590 (mm) dimensions including all fixtures: 332/200 x 672 x 647 (mm)
Weight WaveLine component: 46 kg, flying cradle: 38.6 kg, stack cradle: 24 kg (frame 12 kg, outrigger: 2x6 kg)
Subwoofer Fohhn XS-4
System amplifier Fohhn DSP amplifier A-2.2100
Optional accessories Flying-cradle, Stack-cradle, Touring-Cases, Software
The manufacturer reserves the right to make technical modifications according to legal regulations stipulating the continual improvement of product features.  
Cradle according to BGV C1 for Perform WaveLine. Fohhn® WaveLinesystem's rigging mechanics together with the flying-cradle are certified according to Germans BGV-C1 and DIN 18800. An analysis of strength can be achieved by a free-of-charge software (Fohhn's Flying Calculator) which shows easily the legality of your rigging job.

Cradle according to BGV C1 for Perform WaveLine. The stack-cradle together with the attached outriggers enable the mounting of up to 6 WaveLine elements as ground-stacking. The frame of the stack-cradle fits to Fohhn's subs PS-7, RS-4, XS-4 and enables a secure mounting of 3 WaveLine elements.

Simulation Software EASE Focus
For simulation and calculating of acoustical configurations Fohhn® provides the EASE Focus Aiming Software from SDA (Software Design Ahnert GmbH). The EASE Focus Aiming Software is a two-dimensional acoustic simulation software that serves for the confi guration and modelling of Line-Arrays close to reality. Ease Focus and the specific product file (Fohhn-WaveLine.efo) together with Fohhn's Flying Calculator are available as free download under

Flying Calculator
Flying Calculator for WaveLine PT-9 elements.

High Power Line Array Module

High power line Array module, equipped with two 10“ low/mid neodymium driver and one 2“ high frequency neodymium driver.This compression driver with a 4“ voice coil uses a special designed WaveLine HF-Phase-EQ waveguide. Both driver units are connected to separate amplifier channels, avoiding passive crossover components for maximum efficiency. A symmetrical construction guarantees a very smooth and symmetrical horizontal coverage pattern of 110°. One module produces a maximum sound pressure level more than 130 dB in a frequency range of 80 Hz to 18 kHz. Very robust multyply birch plywood housing strengthened with metal brackets for fulfillment of all safety regulations and aluminium top and bottom for a minimum distance between two speaker elements. Highly scratch proof textured black lacquer and black frontal acoustic foam. Optionally all RAL-colours, flying cradle, stacking cradle and touring cases available. Simulation data for simulation program EASE focus available.

electro-acoustical features
acoustic design: 2-way fullrange twin-coaxial Line-Array system, bassreflex/hornloaded
system components: 2x 10” ND, 3“ voice coil, waterprotected membrane; 1x 2” ND compression driver with 4“ voice coil, WaveLine HF-Phase-EQ
power rating: LMF 500 W, HF 120 W (IEC standard 268-5)
recommended amplifier power: LMF 750 – 1500 W at 8 ohms, HF 200 – 480 W at 8 ohms
nominal SPL: LMF 100dB (1 W / 1 m), HF 110 dB (1 W / 1 m)
maximum SPL: single module > 130 dB (1m)
frequency range: 80 Hz – 18 kHz, +/- 3 dB
nominal dispersion: horizontal 110°; vertical 0°–10° (depends on Array-adjustment – adjustable in 1°-steps)
nominal impedance: LMF 8 ohms, HF 8 ohms

enclosure: multiply birch plywood 15mm, aluminium top and bottom 4mm
protection grill: ball impact-resistant protection steel grill, powder-coated
rigging, fittings: flyware integrated in enclosure, 2 handles at side panel section, 2 frontal aluminium handles
connections: 2x Neutrik NL4 speakon (+1/-1 LMF-section, +2/-2 HF-section)
standard colours: highly scratch proof textured lacquer, powder coating, galvanized metal parts, black (according to RAL9005)
frontal design: acoustic foam, same colour like enclosure
dimensions (H x W x D): enclosure without handles/flyware: 300/200 x 672 x 590 mm; total dimensions: 332/200 x 672 x 647 mm
weight: 46 kg

optional features
optional colours: all RAL-colours
accessories: flying cradle, stacking cradle, touring cases

CAAD simulation data: EASE Focus

make: Fohhn Audio AG
type: PT-9 WaveLine
Artikel document Brochure
Merk Fohhn
BxDxH in cm 67,2 x 59 x 30/20 cm
Gewicht in Kg 46kg
Constructie materiaal Berken multiplex
Verkrijgbare kleuren Zwart
Soort luidsprekersysteem Passief mobiel
Type luidspreker Fullrange
Systeem type Line Array
Belastbaarheid continue RMS LMF 500 W, HF 120 W IEC Norm 268-5
Openingshoek horizontaal horizontal 110°; vertical 0°–10°
SPL 1W / 1m LMF 100dB (1 W / 1 m), HF 110 dB (1 W / 1 m)
SPL peak individual System > 130 dB
Frequency respons 80 Hz – 18 kHz, +/- 3 dB
Impedantie 8 Ohm
Driverformaat High 2"
Luidsprekerformaat Low 2x10"
Ophangsysteem Flying-cradle, Stack-cradle

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