Fohhn DI-4.2000 Digital 4-channel amplifier

The DI-4.2000 is a digital 4-channel amplifier Made in Germany. The DSP amplifiers developed and manufactured by Fohhn offer high power density and excellent sound. The amplifiers are designed for mobile sound systems and fixed installation. They provide all the essential features and almost limitless connectivity in terms of audio inputs. Whether AES/EBU, Dante or Analogue – they offer maximum flexibility thanks to exchangeable connection modules. Corresponding speaker presets ensure optimum performance and reliability.

• Output power: 4 × 2000 W / 4 ohms / 100 V / 70 V
• Can be remotely operated and controlled over Fohhn Net
• Extensive DSP, controllable in real time with the Fohhn Audio Soft
• Q-SYS Plugin available
• Maintains peak power over several seconds
• Temperature controlled, low noise fan
• Auto Power Save for minimum standby power requirements
• Installation size: 2 U / 19"
• Light weight, only 9.9 kg

Electronic features

• amplifier technology: Class D
• amplifier outputs: 4
• DSP routing (matrix): 4 × 4
• frequency response: 20 Hz – 20 kHz
• signal/noise ratio: >100 dB/A
• THD+N: 0.15 % (1 kHz, 8 ohms, 3 dB below clipping)
• dynamic range: >120 dB
• password protection: yes
• auto power save: adjustable from 1 s to 12 h, or never active
• protective circuit: over voltage protection, over current protection, over temperature protection, short-circuit protection, DC protection, power on delay, soft start and inrush current limit
• power supply: 100 – 240 V AC 50/60 Hz, universal power supply with Power Factor Correction (PFC)
• power consumption: Maximum (RMS) 1800 W, idle state 90 W, auto power save 10 W, standby 5 W, power on/off switch / remote power off 2 W
• heat dissipation: Maximal 300 W, 1020 BTU/h, 258 kcal/h
• temperature range: 0 – 40 °C
• cooling: temperature-controlled fan
• output power: 4 × 2000 W / 4 ohms / 100 V / 70 V, 4 × 1000 W / 8 ohms (1 kHz, THD+N <1 %)
• minimum impedance: 4 ohms
• input channels: 4