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Harmonai FX12 Professional Karaoke Preamp image 1

Harmonai FX12 Professional Karaoke Preamp — Dual-Mode Reverb, 6-Band EQ, 5 MIC Inputs

The Harmonai FX12 is a professional karaoke preamp with dual-mode reverb processing, 6-band parametric EQ, and 5 MIC inputs (2 front + 3 rear). It supports Bluetooth, optical, and...

$72.65
Model
FX12
Category
Sequencers
Images
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Status
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Generated onJune 10, 2026
Harmonai FX12 Professional Karaoke Preamp image 1

Product Brief

Harmonai FX12 Professional Karaoke Preamp — Dual-Mode Reverb, 6-Band EQ, 5 MIC Inputs

Overview

The Harmonai FX12 is a professional karaoke preamp with dual-mode reverb processing, 6-band parametric EQ, and 5 MIC inputs (2 front + 3 rear). It supports Bluetooth, optical, and...

Price
$72.65
Model
FX12
Category
Sequencers

Specifications

Specifications

ParameterValue
Effects ProcessingDual-mode reverb processing delivers rich, natural, and transparent vocal effects
Output ChannelsFront (or rear) left + right channels, center channel, and subwoofer frequency channel
Panel MaterialPremium aluminum front panel
Chassis Dimensions1U ultra-slim design
Microphone EQ6-band parametric equalization with wide adjustment range for refined, smooth vocal tone
Subwoofer ChannelIndependent output design with adjustable crossover point and output gain
Feedback ProtectionAdvanced low-frequency self-excitation protection circuit on the subwoofer channel; automatic 50% low-frequency attenuation during MIC input
Center OutputSelectable music/reverb ratio or pure vocal mode, with independent volume and treble/mid/bass control
MIC Input5 channels (2 front + 3 rear)
Audio InputBluetooth audio input, optical input, USB input
DisplayLED display showing brand logo on power-on/off; real-time spectrum visualization across four output groups
Signal-to-Noise RatioL/R channels (1kHz, 0dB) ≥90dB
Total Harmonic Distortion≤0.03% at 1kHz
Sensitivity – Microphone6mV/4kΩ
Sensitivity – Auxiliary280mV/30kΩ
Frequency Response – Microphone40Hz–15kHz (+1/−6dB)
Tone Control – Bass±10dB (100Hz)
Center Channel SNR≥87dB
Subwoofer Channel SNR≥87dB
Channel Separation≥75dB
Tone Adjustment Range – Music Bass±10dB (100Hz)
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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
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Business email: Sales@frog-is.com

Office

Address: Unit 2, Liandong U Valley, Yinzhou District, Ningbo, Zhejiang

Hours: Monday to Saturday 09:00 - 18:30

Services

Professional audio, conference sound, wireless microphones and commercial AV integration

Harmonai is the global trade platform of Frog-is Acoustic Systems