Harmonai GP-F3 Automatic Feedback Suppressor image 1

Harmonai GP-F3 Automatic Feedback Suppressor — Zero-Setup, Self-Adapting to Any Acoustic Environment

The Harmonai GP-F3 is an intelligent automatic feedback suppressor using echo cancellation and digital frequency shifting to eliminate acoustic feedback before it occurs. With 2-ch...

$182.48

Model: GP-F3
Category: Stage Accessories
Images: 4 images
Status: ready

Product Brief

Harmonai GP-F3 Automatic Feedback Suppressor — Zero-Setup, Self-Adapting to Any Acoustic Environment

Overview

The Harmonai GP-F3 is an intelligent automatic feedback suppressor using echo cancellation and digital frequency shifting to eliminate acoustic feedback before it occurs. With 2-ch...

Price: $182.48
Model: GP-F3
Category: Stage Accessories

Specifications

Parameter	Value
Input Channel Count	2 channels (2-channel balanced line/mic inputs or 2-channel 6.35mm unbalanced inputs)
Phantom Power	2-channel 24V phantom power
Rated Voltage	AC 220V ±10%, 50Hz/60Hz
Frequency Response	125Hz ~ 15kHz
THD	<0.1% @ 1kHz
Signal-to-Noise Ratio	>90dB
Input Impedance	20kΩ
Output Impedance (Balanced)	200Ω
Operating Temperature Range	-10°C ~ 55°C
Dimensions	480 × 220 × 44mm
Weight	3.5kg

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

Harmonai GP-F3 Automatic Feedback Suppressor product image

Product Overview

The Harmonai GP-F3 Automatic Feedback Suppressor is a smart feedback suppression device designed for professional audio systems. It employs advanced echo cancellation and reverberation reduction algorithms to effectively filter out room reverb and intelligently eliminate feedback before audible howling occurs—while fully preserving the original audio signal’s integrity. Its built-in digital frequency shifting technology and ultra-wide frequency response circuit deliver exceptional anti-howling performance: sound remains smooth, stable, and free from thinness or dryness. The unit supports 2-channel balanced line or microphone inputs, optionally switchable to 6.35mm unbalanced inputs, and features a 24V phantom power toggle to power up to two microphones—fully meeting the demands of conference rooms, performance halls, lecture venues, and other professional applications.

Input Channel Count

2 channels (2-channel balanced line/mic inputs or 2-channel 6.35mm unbalanced inputs)

Phantom Power

2-channel 24V phantom power

Rated Voltage

AC 220V ±10%, 50Hz/60Hz

Frequency Response

125Hz ~ 15kHz

THD

<0.1% @ 1kHz

Signal-to-Noise Ratio

>90dB

Input Impedance

20kΩ

Output Impedance (Balanced)

200Ω

Operating Temperature Range

-10°C ~ 55°C

Dimensions

480 × 220 × 44mm

Weight

3.5kg

Recommended Applications

The GP-F3 adaptive filter supports intelligent switching between “Fast Mode” and “Precise Mode”. Fast Mode is ideal for environments where microphone positions change frequently—such as multi-mic conference discussion systems. Precise Mode suits fixed-mic scenarios with complex acoustics—like lecture halls and auditoriums. An integrated automatic mixer enables priority speech functionality. A built-in crystal oscillator and proprietary software algorithms ensure exceptional stability—minimally affected by temperature fluctuations or external interference. Audio spectra can be customized per application to significantly increase system gain—making the GP-F3 an ideal choice for conference rooms, auditoriums, performance venues, churches, and schools.

For detailed technical specifications and tailored audio system integration advice for the Harmonai GP-F3 Automatic Feedback Suppressor, contact us today.