Harmonai FBX4.4 Automatic Feedback Suppressor image 1

Harmonai FBX4.4 Automatic Feedback Suppressor — Dual DSP, 136 Filter Points, One-Touch Feedback Prevention

The Harmonai FBX4.4 uses U.S.-made DSP chips and dual processors (136 total filter points) for fully automatic feedback scanning and suppression. Its 4-in/4-out design supports bot...

$153.90

Model: FBX4.4
Category: Stage Accessories
Images: 4 images
Status: ready

Product Brief

Harmonai FBX4.4 Automatic Feedback Suppressor — Dual DSP, 136 Filter Points, One-Touch Feedback Prevention

Overview

The Harmonai FBX4.4 uses U.S.-made DSP chips and dual processors (136 total filter points) for fully automatic feedback scanning and suppression. Its 4-in/4-out design supports bot...

Price: $153.90
Model: FBX4.4
Category: Stage Accessories

Specifications

Parameter	Value
Channel Configuration	4-in/4-out (4 input channels correspond to 4 output channels)
Connector Types	XLR (male/female) + 6.35mm (1/4") multifunction jacks
DSP Chip	U.S.-made DSP digital processing chip
Filter Points	Dual DSP with 136 total filter points (68 per DSP), fully automatic scanning
Channel Allocation	Channels 1 and 2 share one DSP (68 filter points); Channels 3 and 4 share one DSP (68 filter points)
Feedback Prevention Mode	Enters anti-feedback mode automatically at power-on; applies automatic dynamic filtering
Equalization Recovery Time	2 seconds
Limiter Function	Critical-point automatic limiting prevents signal overload distortion and protects loudspeaker equipment
One-Touch Gain	Rear-panel one-touch gain boost of 12dB
Power Supply	220V
Acoustic Gain	-1dB or 11dB
Line Input Impedance	15kΩ
Line Output Impedance	300Ω
Frequency Response	80Hz–15kHz
Signal-to-Noise Ratio	82dB

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

Business hours: Monday to Friday 09:00 - 18:30
Inquiry channels: phone / email / website form
Tip: share budget, quantity and use scenario in advance

Automatic Feedback Suppressor product display image

Product Overview

The Harmonai FBX4.4 Automatic Feedback Suppressor leverages next-generation DSP digital processing chip technology, engineered specifically to eliminate acoustic feedback (squealing) during microphone use.4-in/4-out professional architecture features XLR and 6.35mm (1/4") multi-type input/output jacks — enablingfully automatic anti-feedback mode at power-on, with no complex manual calibration needed. Equipped withdual DSP processors and 136 total filter points, it performs fully automatic scanning to precisely identify and suppress feedback frequencies while preserving high-fidelity audio reproduction. The critical-point automatic limiter prevents signal overload-induced distortion or equipment damage, ensuring safe and reliable performance for live events and daily use.

Channel Configuration

4-in/4-out (4 input channels correspond to 4 output channels)

Connector Types

XLR (male/female) + 6.35mm (1/4") multifunction jacks

DSP Processors

U.S.-made DSP chips; dual DSP with 68 filter points each, fully automatic scanning

Channel Allocation

Channels 1 & 2 share one DSP processor (68 filter points); Channels 3 & 4 share one DSP processor (68 filter points)

Feedback Prevention Mode

Enters anti-feedback mode automatically at power-on; applies dynamic notch filtering in real time

Equalization Recovery Time

2 seconds for EQ points to return to neutral after initiating notch filtering

Limiter Function

Critical-point automatic limiting prevents signal overload distortion or equipment damage; limiter remains inactive when volume is normal

One-Touch Gain Boost

Rear-panel one-touch gain boost function increases level by 12dB

Power Supply

220V AC

Acoustic Gain

-1dB or 11dB

Line Input Impedance

15kΩ

Line Output Impedance

300Ω

Frequency Response

80Hz – 15kHz

Signal-to-Noise Ratio

82dB

Recommended Applications

Ideal forconference rooms,multi-function entertainment venues,small-to-medium live performances,KTV rooms, andhome theaters. Effortlessly eliminates microphone-induced acoustic feedback, delivering clear, clean audio for every user.

Learn more about Harmonai professional audio solutions — contact us today for detailed pricing and technical support.