Manufacturer: Fohhn Audio AG Model: FS-70 Series: Focus Slim Slim, active line source loudspeaker system with beam steering. The active loudspeaker system enables electronic control of the sound dispersion via software. The vertical beam angle can be adjusted from 0° to 90° in 0.1° increments. The vertical tilt angle can be adjusted from -40° to +40° also in 0.1° increments. The horizontal beam angle is 140°. The line source system has 4 2.5-inch broadband chassis arranged in a line with waveguides and water-repellent membranes. A bass reflex system is integrated to extend the low frequency response. The frequency range of the system is 62 Hz - 17 kHz. The maximum sound level is 111 dB with an integrated amplifier power of 4 × 75 W. The 8.4 cm wide enclosure is made of robust, powder-coated aluminum with steel grille and acoustically transparent 3D mesh to protect the membranes. There is a continuous T-slot in the rear of the enclosure for flexible mounting. The device features analog audio inputs, an RJ-45 interface for Dante (audio + control) and a USB-C jack for local configuration. With the manufacturer's own network including control software, in addition to monitoring and control of beam parameters, other DSP settings such as EQs and delays can be made. Integration into common media control systems is also possible. The integrated Auto Power Save function ensures minimal energy consumption in standby mode. Electroacoustic features Acoustic design Ultra-compact, electronically controllable line source, bass reflex Components 4 × 2.5" broadband chassis with waveguide and water-repellent membrane Maximum sound pressure [1] 111 dB Operating mode active, DSP amplifier, Class-D Amplifier channels 4 Frequency response [2] 62 Hz - 17 kHz Nominal dispersion horiz. [3] 140° Beam width vertical digitally controllable, 0° to +90° in 0.1° increments Inclination angle vertical digitally controllable, -40° to +40° in 0.1° increments Acoustic center both beams adjustable from 0% (bottom) to 100% (top) Physical features Enclosure Aluminum enclosure, powder-coated Front design Front grille in enclosure color Protection grille Steel grille, powder-coated, backed with acoustically transparent 3D mesh Mounting points T-slot, continuous on rear side Connections Dante audio & control with 100Base-TX Ethernet, analog input, mains voltage, USB-C Config for local configuration Stock colors black or white powder-coated Dimensions (W x H x D) 85 × 700 × 90 (100 mm D incl. connector cover) Weight 3.9 kg Electronic Features Amplifier technology Class D - Pure Path Digital PWM Supports AES67 yes DSP Channels 4 Amplifier power 4 × 75 W Frequency response 20 Hz - 20 kHz Gain 25 dB Input sensitivity 0 dBFS / +4.2 dBV Signal to noise ratio > 103 dB (A-weighted) Dynamic range > 120 dB System latency Dante + 1.2 ms THD+N 0.08 % (1 kHz, 8 ohms, 3 dB below clipping level) Auto Power Save yes, time adjustable 1 s to 12 h, or never active Password protection yes Protection circuit Overvoltage protection, overcurrent protection, overtemperature protection, short-circuit protection, DC protection, power-on delay, soft start and inrush current limitation Power supply 100 - 240 V AC 50/60 Hz, universal power supply with power factor correction (PFC) Maximum power consumption 100 W Idle power consumption 10 W Power consumption standby 3 W Power factor correction (PFC) > 90 Temperature range 0 - 40 °C Cooling fanless, passive Controller FIR filter yes Gain -80 dB - +12 dB Volume -80 dB - +12 dB EQ Input 10 fully parametric filters each, gain +/-12 dB, frequency 10 - 20 kHz, Q 0.1 - 100 EQ Output 10 fully parametric filters, gain +/-12 dB, frequency 10 - 20 kHz, Q 0.1 - 100 Selective 3-band limiting bass / mid / high Limiter / Compressor 2 × Input, 1 × Output Noise Gate 2 × Input, 1 × Output Delay Input 0 - 350 ms (0 - 120 m) Delay Output 0 - 640 ms (0 - 220 m) X-Over Linkwitz-Riley 4th order, 24 dB/octave, high pass 10 Hz – 20 kHz, low pass 10 Hz – 20 kHz, 2 × input, 1 × output in each case User Presets 100 System latency Dante + 1.2 ms Band-specific time constants yes Filter technology 80-bit double precision Connectors and controls Inputs & controls 1 × 100Base-TX Ethernet (RJ-45) for Dante audio and control, 1 × terminal for analog audio, balanced, 1 × USB-C for control Power connection 1 × 3-pole terminal (4.0 mm² rigid / 2.5 mm² flex) Remote control and monitoring Remote control With manufacturer's own software, via IP Remote monitoring temperature, protect, signals, power supply Integration in media control UDP text protocol, Q-SYS plugin etc. available Optional features Special colors RAL Classic, NCS, Pantone and photorealistic surface coatings [1] Peak, 20 ms with band-pass filtered pink noise according to IEC 60268-2, one octave above lower cut-off frequency, with speaker preset [2] -10 dB under anechoic half-space conditions with speaker preset [3] Horizontal x vertical at -6 dB