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Updated: 25 Nov 2025

10 Best Electronics Voice Synthesizer

#1
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KORG Monologue - Analog Synthesizer, Black, 25 Key, MONOLOGUEBK

Brand: KORG
$472.83
⭐ 4.1
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    Fully programmable, analog synthesis for all players
  • Next-generation monophonic synthesizer
  • Sleek layout, knob-per-function workflow and high-quality construction
  • Truly unique new synth for all types of musicians
  • Featuring new voicing and sound sculpting abilities
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#2
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KORG KO-MONOTRONDUO Monotron Duo Analogue Ribbon Synthesizer with Dual Oscillator

Brand: KORG
$62.99
⭐ 5
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    Two analogue oscillators (VCO) with individual tunings
  • Edgy X-MOD circuit borrowed from Korg classic Mono/Poly
  • Ribbon controller keyboard with scale select
  • Original Analog (VCF) filter taken from the classic MS-10 and MS-20
  • Aux input jack lets you apply filter to any audio source
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#3
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Behringer JT-4000M MICRO Portable Synthesizer 3.5mm MIDI IN

Brand: Behringer
$139.89
⭐ 4.1
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    Programmable 4 voice hybrid synthesizer with two analog modeling oscillators per voice
  • Equipped with an analog filter that provides warm analog sound and modeling that reproduces the SuperSaw waveform of the "JP-8000*" synthesizer
  • 12bit DAC reproduces classic sound
  • 32 memory presets that can be managed even on SYNTHTRIBE applications
  • Equipped with 3.5mm TRS MIDI connector (3.5mm to DIN conversion cable included)
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#4
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Behringer TD-3-BK Analog Bass Line Synthesizer with VCO, VCF, 16-Step Sequencer, Distortion Effects and 16-Voice Poly Chain, Compatible with PC and Mac

Brand: Behringer
$199.77
⭐ 4.1
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    Amazing Bass Line synthesizer with true analog circuitry for bass and groove sounds
  • Authentic reproduction of original circuitry with matched transistors
  • Pure analog signal path based on legendary VCO, VCF and VCA designs
  • Sawtooth and square waveform VCO with transistor wave-shaping circuitry
  • Amazing 4-pole low-pass resonant filter with cut-off, resonance, envelope, decay and accent controls
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#5
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Toysmith Tech Gear Multi Voice Changer (6.5-Inch)

Brand: Toysmith
$53.68
⭐ 4.1
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    Experiment with the science of sound using this electronic voice synthesizer, featuring 10 different voice modifiers.
  • Side levers adjust frequency and amplitude, creating hundreds of different sound combinations.
  • Effects include a voice amplifier and colorful flashing LEDs.
  • A fun toy for kids and adults alike.
  • One 9-volt battery included.
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#6
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Otamatone Cube Techno Touch-Sensitive Electronic Musical Instrument Synthesizer with Music Link Connect with a Smartphone (iPhone & iPad iOS/Android Terminal), White

Brand: Otamatone
$118.50
⭐ 4.1
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    The otamatone can be played easily and has an analog to digital sound motion with the sounds of a drum.
  • The single note chord has three phases High,Middle and Low. It has the parts divided equally and can be dynamically ensembled just like before.
  • Operation by pressing the sound surface at the neck and opening and closing the mouth
  • Adjustable sounds via iPhone/iPad/Android mobile app
  • Stereo headphone jack, Volume control, Battery operated (3 pieces AA)
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#7
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Type C Theremin Musical Electronic Creative Instrument with Digital Display, Electronic Synthesizer with 70 Voices and 20 Instrument Effects

Brand: Gugxiom
$191.18
⭐ 4.4
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    Easy to use: for beginners or experienced musicians. The Theremini's supported pitch correction function allows each player to adjust the playing difficulty level of the instrument, develop their musical talent and improve their pitch accuracy.
  • Colour display: -Theremin with colour display, which can display the waveform, time frequency, volume as well as the sound display and corresponding piano tone display.
  • Function Settings Easy to use and operate, various device function settings can be made via the 4 control buttons on the control panel. Device configuration information such as volume, tones, ringtones, etc. will be lost after restarting. If you want to keep the settings, save them in the settings interface.
  • Customizable Voice Design There are more than 70 kinds of voices to choose from, including more than 20 traditional Chinese folk instruments. The built-in tuner uses the screen of the organic light-emitting diode to give real-time visual feedback on each note as it is played and how close it is to perfection.
  • Complete accessories: standalone speakers and plug-in antennas with antenna calibration function. In addition to connecting audio devices such as headphones, you can also play the sound via the independent speakers. When the audio device is connected, the external speakers will automatically turn off. The antenna can be unplugged, unplugged and retracted, making storage easier.
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#8
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Portable Electronic Musical Instrument Synthesizer

Brand: MIKOTAS
$73.99
⭐ 4.7
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    QUICK AND EASY SETUP - AAA Batteries
  • It is smaller and easier to hold than the deluxe type.
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#9
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Behringer CRAVE Analog Synthesizer Analog Semi-Modular Synthesizer with 3340 VCO, Classic Ladder Filter, 32-Step Sequencer and 16-Voice Poly Chain, Compatible with PC and Mac

Brand: Behringer
$237.28
⭐ 4.6
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    Analog synthesizer with legendary Prophet 5* VCO design allows for insanely fat music creation
  • Pure analog signal path based on authentic VCO, VCF and VCA designs
  • Super-rich oscillator with pulse and sawtooth wave outputs for ultimate sounds
  • Classic Moog* 24 dB ladder filter with resonance for legendary sound performance
  • Switchable low/high pass filter mode for enhanced sound creation
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#10
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Otamatone "Deluxe" [Japanese Edition] Electronic Musical Instrument Portable Synthesizer from Japan by Cube / Maywa Denki, Black

Brand: Otamatone
$103.34
⭐ 4.1
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    The otamatone can be played easily and has an analog to digital sound motion with the sounds of a drum.
  • World's cutest and weirdest musical instrument
  • The single note chord has three phases High,Middle and Low. It has the parts divided equally and can be dynamically ensembled just like before.
  • By pressing down various parts of the tail button, different pitch and tone will start playing.
  • Move its mouth and Otamatone will start singing for you.
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