I am selling a brand new Groove Synthesis 3rd Wave Keyboard officially sourced from the factory. Feel free to contact me for inquiries and to place an order. Below are additional terms in my store and a description of the device.

• All products are officially sourced from the vendor or distributor.

• I provide a minimum 3‑year warranty on all products, or longer depending on the type of product.

• Most products are available for testing on demand in the showroom in Warsaw.

• Every customer in Europe is entitled to a 30‑day return policy. This option doesn’t cover customers abroad EU.

The 3rd Wave is a modern wavetable powerhouse with 24-voice polyphony and four independent parts, each with dedicated stereo outputs and effects. Its three high-resolution digital oscillators per voice cover classic PPG tables, modern wavetables, and analog-modeled wave shapes. Two analog filters—a Rossum-designed 2140 low-pass and a SEM-style state-variable—can run in series for rich, harmonically complex tones. A comprehensive modulation matrix, four ADSR+delay envelopes, four LFOs and a 64-step sequencer make for deep sculpting control. Workflow stays smooth thanks to intuitive front-panel knobs, OLED screen and live quantize control  .

Build quality matches the ambition—robust aluminum frame, pro-grade keybed with velocity and aftertouch, and solid input/output options including USB, MIDI, audio in, four pairs of stereo main outputs and headphone jack  .

Reddit users emphasize its depth and analog flavor:

“By far the deepest synth on the market…It oozes mojo and never fails to make the bodily hairs rise” 

MusicRadar highlights:

“Almost ridiculously easy to use given the level of power…Multitimbral mode is excellent – it really is like having four synths in one” 

Sound On Sound editor summed it up as possibly their favorite synth in the last decade  .

Technical specifications:

• Polyphony: 24 voices or 4x6‑voice multitimbral

• Oscillators: 3 per voice – classic PPG, modern high-res wavetables, analog-modeled waves

• Filters: Analog Rossum 2140 low‑pass + SEM‑style state-variable

• Envelopes: 4 ADSR + delay per voice

• LFOs: 4, with multiple waveforms

• Modulation: 16‑slot per part matrix, 27 sources, 114 destinations

• Effects: Stereo delay, chorus, phaser, flanger, distortion, hall & plate reverbs, rotary speaker, ring modulator

• Sequencer: 64‑step per part, live/step input, quantize, chaining, pattern/song modes

• Arpeggiator: Yes, with multiple modes

• Display: OLED

• I/O: 4x stereo outputs, stereo audio input, headphone, MIDI I/O, USB MIDI, sustain & expression pedals

• Keybed: 61‑note Fatar semi‑weighted with velocity & aftertouch

• Construction: Aluminum chassis

• Power: Internal PSU 100–240 VAC

• Dimensions: 980 × 350 × 110 mm

• Weight: Approx. 12.3 kg (27 lb)

• Presets: 500 factory + user slots, 64 user wavetables

• Warranty: 2 years