Harmonai FBX220 Automatic Feedback Suppressor product image

Product Overview

The Harmonai FBX220 automatic feedback suppressor features a U.S.-made DSP digital processing chip and advanced digital signal processing technology, specifically engineered to eliminate acoustic feedback (howling) caused by microphone use. The unit enters anti-howling mode automatically at power-on — no complex setup required. Its plug-and-play operation makes professional audio processing simple and intuitive.

It includes 68 fully automatic scanning notch filters. Channels 1 and 2 share one DSP processor, with intelligent allocation of filtering resources. After each notch filter activates to suppress howling, the EQ points automatically restore balance within 2 seconds, ensuring natural, smooth sound reproduction.

Processor

U.S.-made DSP digital processing chip

Filter Points

68 fully automatic scanning notch filters

Channel Configuration

Dual-input/dual-output, with independent volume control per channel

Input Interfaces

XLR (male) + 6.35mm (1/4") multi-function jack

Output Interfaces

XLR (female) + 6.35mm (1/4")

Anti-Howling Mode

Automatic activation at power-on

Dynamic Filtering

Automatic dynamic filtering for howling suppression without compromising audio quality

EQ Recovery

Automatic EQ balance restoration within 2 seconds after notch activation

Peak Limiting

Automatic peak limiting at threshold to prevent signal overload and distortion

Indicators

Per-channel rotary level indicator (green = normal / yellow = caution / red = clipping) + frequency indicator

Applications

The FBX220 is widely used in conference rooms, multi-function entertainment venues, small-to-medium live events, KTV rooms, and home theaters. Whether for professional performances or everyday use, it effortlessly eliminates microphone feedback — delivering clean, howling-free audio.

Explore more Harmonai professional audio products, or contact us for detailed FBX220 technical specifications and bulk procurement options.