# Which monophonic synthesizer offers the best value for money under $300? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which monophonic synthesizer offers the best value for money under $300?

## Products

### Behringer Model D Analog Synthesizer Module
```yaml
product: behringer-model-d-analog-synthesizer-module
brand: Behringer
price_gbp: 123.63
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
polyphony: Monophonic with 16-unit Poly Chain
filter_types: Low-pass/high-pass ladder filter
oscillator_count: 3 VCOs
envelope_sections: Two envelope generators
midi_compatibility: MIDI In/Thru, USB-MIDI, 16-unit Poly Chain
modulation_sources: Oscillator 3, filter envelope, noise, external signal, LFO
```

- **Price:** £123.63 [^1]
- **Summary:** The Behringer Model D is a semi-modular analog synthesizer module with three VCOs, a resonant 24 dB ladder filter, dual filter modes, and a dedicated triangle or square LFO. Its Eurorack compatibility, CV connections, and MIDI and USB-MIDI support make it suitable for beginners, studio producers, and modular synthesizer users seeking classic bass and lead sounds.
- **Ideal For:** It suits the best-value-under-300 question because it provides three analog VCOs, two filter modes, two envelope generators, Eurorack compatibility, and MIDI connectivity for 249 USD or less.
- **Additional Sources:** [^2]

### Korg Monologue Analog Synthesizer
```yaml
product: korg-monologue-analog-synthesizer
brand: Korg
price_gbp: 191.51
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
polyphony: 1 voice
filter_types: 2-pole VCF
oscillator_count: 2 VCO
envelope_sections: 1 EG
midi_compatibility: 5-pin MIDI In/Out, USB MIDI
modulation_sources: EG, LFO
```

- **Price:** £191.51 [^3]
- **Summary:** The Korg Monologue is a fully programmable monophonic analog synthesizer with two oscillators, a two-pole filter, drive circuit, LFO, and 16-step motion sequencer. Its compact 25-key design and battery operation suit beginners, bass and lead players, and portable live setups.
- **Ideal For:** It offers strong value under $300 with two analog VCOs, one-voice monophony, a two-pole filter, drive circuit, programmable presets, and a motion-capable 16-step sequencer.
- **Additional Sources:** [^4], [^5]

### Arturia MicroBrute UFO
```yaml
product: arturia-microbrute-ufo
brand: Arturia
price_gbp: 198.9
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
polyphony: Monophonic
filter_types: Low-pass, band-pass, high-pass
oscillator_count: 1 VCO with sub-oscillator
envelope_sections: ADSR and gate
midi_compatibility: 5-pin DIN MIDI In and bidirectional USB MIDI
modulation_sources: LFO, ADSR envelope, modulation wheel, external CV
```

- **Price:** £198.9 [^6]
- **Summary:** The Arturia MicroBrute UFO is a compact analog monosynth with one VCO, sub-oscillator, Steiner-Parker multimode filter, patchable modulation matrix, and built-in 64-step sequencer. It suits basslines, leads, experimental sound design, and musicians who want hands-on analog control in a small keyboard.
- **Ideal For:** It offers strong value under $300 with a single analog VCO, sub-oscillator, three-mode filter, ADSR and LFO modulation, CV/Gate, MIDI, USB MIDI, and a built-in sequencer.
- **Additional Sources:** [^7], [^8]

### Arturia MicroFreak Vocoder Edition
```yaml
product: arturia-microfreak-vocoder-edition
brand: Arturia
price_gbp: 246.22
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
polyphony: Monophonic; paraphonic up to 4 voices
filter_types: Analog state variable low-pass, band-pass, high-pass
oscillator_count: 1 digital oscillator
envelope_sections: 2
midi_compatibility: MIDI In/Out via 3.5 mm TRS; USB MIDI
modulation_sources: Cyclic envelope, ADSR envelope, LFO, pressure output, sequencer/arpeggiator
```

- **Price:** £246.22 [^9]
- **Summary:** The MicroFreak Vocoder Edition is a compact hybrid synthesizer with one digital oscillator, an analog multimode filter, polyphonic aftertouch, and a 16-band vocoder with a detachable gooseneck microphone. It suits adventurous producers, performers, and sound designers who want experimental textures, vocal processing, sequencing, and flexible modulation in a portable instrument.
- **Ideal For:** It offers strong value for experimental synthesis through its digital oscillator, four-voice paraphony, analog multimode filter, modulation matrix, sequencer, and vocoder, although the searched retail prices exceed $300.
- **Additional Sources:** [^10]

---
## References & Sources
[^1]: Guitar Center, accessed 2026-09-03. https://www.guitarcenter.com/Behringer/Model-D-1500000146128.gc
[^2]: Music Store Professional, accessed 2026-09-03. https://www.musicstore.com/en_OT/EUR/Behringer-Model-D/art-SYN0006136-000
[^3]: Korg UK, accessed 2026-09-03. https://www.korg.co.uk/products/monologue
[^4]: Thomann Music, accessed 2026-09-03. https://www.thomannmusic.com/korg_monologue_blue.htm
[^5]: Guitar Center, accessed 2026-09-03. https://www.guitarcenter.com/KORG/monologue-Monophonic-Analog-Synthesizer-Blue-1500000032614.gc
[^6]: Thomann, accessed 2026-09-03. https://www.thomannmusic.com/arturia_microbrute_ufo.htm
[^7]: Music Store Professional, accessed 2026-09-03. https://www.musicstore.com/en_OT/EUR/Arturia-MicroBrute-UFO/art-SYN0009332-000
[^8]: Arturia, accessed 2026-09-03. https://www.arturia.com/products/hardware-synths/microbrute-ufo/overview
[^9]: Session, accessed 2026-09-03. https://www.session.de/en/products/arturia-microfreak-vocoder-edition/
[^10]: Melody House, accessed 2026-09-03. https://www.melodyhousemi.com/product/buy-arturia-microfreak-vocoder-edition